/*******************************************************************************
* Copyright (c) 2000, 2014 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* IBM Corporation - added J2SE 1.5 support
*******************************************************************************/
package org.eclipse.jdt.core;
import java.io.InputStream;
import org.eclipse.core.runtime.IProgressMonitor;
/**
* Represents either a source type in a compilation unit (either a top-level
* type, a member type, a local type, an anonymous type or a lambda expression)
* or a binary type in a class file. Enumeration classes and annotation
* types are subkinds of classes and interfaces, respectively.
* <p>
* Note that the element name of an anonymous source type and lambda expressions
* is always empty. Types representing lambda expressions are pseudo-elements
* and not included in the children of their parent. Lambda expressions are created
* as the result of a <code>ICodeAssist.codeSelect(...)</code>. For more information
* on such pseudo-elements, see <code>ILocalVariable</code>.
* </p><p>
* If a binary type cannot be parsed, its structure remains unknown.
* Use <code>IJavaElement.isStructureKnown</code> to determine whether this
* is the case.
* </p>
* <p>
* The children are of type <code>IMember</code>, which includes <code>IField</code>,
* <code>IMethod</code>, <code>IInitializer</code> and <code>IType</code>.
* The children are listed in the order in which they appear in the source or class file.
* </p>
*
* @noimplement This interface is not intended to be implemented by clients.
*/
public interface IType extends IMember, IAnnotatable {
/**
* Do code completion inside a code snippet in the context of the current type.
*
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position within snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 2.0
* @deprecated Use {@link #codeComplete(char[],int,int,char[][],char[][],int[],boolean,CompletionRequestor)} instead.
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
ICompletionRequestor requestor)
throws JavaModelException;
/**
* Do code completion inside a code snippet in the context of the current type.
* It considers types in the working copies with the given owner first. In other words,
* the owner's working copies will take precedence over their original compilation units
* in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* </p><p>
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
* </p>
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position with in snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @param owner the owner of working copies that take precedence over their original compilation units
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.0
* @deprecated Use {@link #codeComplete(char[],int,int,char[][],char[][],int[],boolean,CompletionRequestor,WorkingCopyOwner)} instead.
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
ICompletionRequestor requestor,
WorkingCopyOwner owner)
throws JavaModelException;
/**
* Do code completion inside a code snippet in the context of the current type.
*
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position within snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.1
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
CompletionRequestor requestor)
throws JavaModelException;
/**
* Do code completion inside a code snippet in the context of the current type.
*
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
* <p>
* If {@link IProgressMonitor} is not <code>null</code> then some proposals which
* can be very long to compute are proposed. To avoid that the code assist operation
* take too much time a {@link IProgressMonitor} which automatically cancel the code
* assist operation when a specified amount of time is reached could be used.
*
* <pre>
* new IProgressMonitor() {
* private final static int TIMEOUT = 500; //ms
* private long endTime;
* public void beginTask(String name, int totalWork) {
* fEndTime= System.currentTimeMillis() + TIMEOUT;
* }
* public boolean isCanceled() {
* return endTime <= System.currentTimeMillis();
* }
* ...
* };
* </pre>
* <p>
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position within snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @param monitor the progress monitor used to report progress
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.5
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
CompletionRequestor requestor,
IProgressMonitor monitor)
throws JavaModelException;
/**
* Do code completion inside a code snippet in the context of the current type.
* It considers types in the working copies with the given owner first. In other words,
* the owner's working copies will take precedence over their original compilation units
* in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* </p><p>
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
* </p>
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position with in snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @param owner the owner of working copies that take precedence over their original compilation units
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.1
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
CompletionRequestor requestor,
WorkingCopyOwner owner)
throws JavaModelException;
/**
* Do code completion inside a code snippet in the context of the current type.
* It considers types in the working copies with the given owner first. In other words,
* the owner's working copies will take precedence over their original compilation units
* in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* </p><p>
* If the type has access to its source code and the insertion position is valid,
* then completion is performed against the source. Otherwise the completion is performed
* against the type structure and the given locals variables.
* </p>
* <p>
* If {@link IProgressMonitor} is not <code>null</code> then some proposals which
* can be very long to compute are proposed. To avoid that the code assist operation
* take too much time a {@link IProgressMonitor} which automatically cancel the code
* assist operation when a specified amount of time is reached could be used.
*
* <pre>
* new IProgressMonitor() {
* private final static int TIMEOUT = 500; //ms
* private long endTime;
* public void beginTask(String name, int totalWork) {
* endTime= System.currentTimeMillis() + TIMEOUT;
* }
* public boolean isCanceled() {
* return endTime <= System.currentTimeMillis();
* }
* ...
* };
* </pre>
* <p>
*
* @param snippet the code snippet
* @param insertion the position with in source where the snippet
* is inserted. This position must not be in comments.
* A possible value is -1, if the position is not known.
* @param position the position with in snippet where the user
* is performing code assist.
* @param localVariableTypeNames an array (possibly empty) of fully qualified
* type names of local variables visible at the current scope
* @param localVariableNames an array (possibly empty) of local variable names
* that are visible at the current scope
* @param localVariableModifiers an array (possible empty) of modifiers for
* local variables
* @param isStatic whether the current scope is in a static context
* @param requestor the completion requestor
* @param owner the owner of working copies that take precedence over their original compilation units
* @param monitor the progress monitor used to report progress
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.5
*/
void codeComplete(
char[] snippet,
int insertion,
int position,
char[][] localVariableTypeNames,
char[][] localVariableNames,
int[] localVariableModifiers,
boolean isStatic,
CompletionRequestor requestor,
WorkingCopyOwner owner,
IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a field in this type with the
* given contents.
* <p>
* Optionally, the new element can be positioned before the specified
* sibling. If no sibling is specified, the element will be inserted
* as the last field declaration in this type.</p>
*
* <p>It is possible that a field with the same name already exists in this type.
* The value of the <code>force</code> parameter affects the resolution of
* such a conflict:<ul>
* <li> <code>true</code> - in this case the field is created with the new contents</li>
* <li> <code>false</code> - in this case a <code>JavaModelException</code> is thrown</li>
* </ul></p>
*
* @param contents the given contents
* @param sibling the given sibling
* @param force a flag in case the same name already exists in this type
* @param monitor the given progress monitor
* @exception JavaModelException if the element could not be created. Reasons include:
* <ul>
* <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
* <li> A <code>CoreException</code> occurred while updating an underlying resource
* <li> The specified sibling is not a child of this type (INVALID_SIBLING)
* <li> The contents could not be recognized as a field declaration (INVALID_CONTENTS)
* <li> This type is read-only (binary) (READ_ONLY)
* <li> There was a naming collision with an existing field (NAME_COLLISION)
* </ul>
* @return a field in this type with the given contents
*/
IField createField(String contents, IJavaElement sibling, boolean force, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a static initializer in this type with the
* given contents.
* <p>
* Optionally, the new element can be positioned before the specified
* sibling. If no sibling is specified, the new initializer is positioned
* after the last existing initializer declaration, or as the first member
* in the type if there are no initializers.</p>
*
* @param contents the given contents
* @param sibling the given sibling
* @param monitor the given progress monitor
* @exception JavaModelException if the element could not be created. Reasons include:
* <ul>
* <li> This element does not exist
* <li> A <code>CoreException</code> occurred while updating an underlying resource
* <li> The specified sibling is not a child of this type (INVALID_SIBLING)
* <li> The contents could not be recognized as an initializer declaration (INVALID_CONTENTS)
* <li> This type is read-only (binary) (READ_ONLY)
* </ul>
* @return a static initializer in this type with the given contents
*/
IInitializer createInitializer(String contents, IJavaElement sibling, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a method or constructor in this type with the
* given contents.
* <p>
* Optionally, the new element can be positioned before the specified
* sibling. If no sibling is specified, the element will be appended
* to this type.
*
* <p>It is possible that a method with the same signature already exists in this type.
* The value of the <code>force</code> parameter affects the resolution of
* such a conflict:<ul>
* <li> <code>true</code> - in this case the method is created with the new contents</li>
* <li> <code>false</code> - in this case a <code>JavaModelException</code> is thrown</li>
* </ul></p>
*
* @param contents the given contents
* @param sibling the given sibling
* @param force a flag in case the same name already exists in this type
* @param monitor the given progress monitor
* @exception JavaModelException if the element could not be created. Reasons include:
* <ul>
* <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
* <li> A <code>CoreException</code> occurred while updating an underlying resource
* <li> The specified sibling is not a child of this type (INVALID_SIBLING)
* <li> The contents could not be recognized as a method or constructor
* declaration (INVALID_CONTENTS)
* <li> This type is read-only (binary) (READ_ONLY)
* <li> There was a naming collision with an existing method (NAME_COLLISION)
* </ul>
* @return a method or constructor in this type with the given contents
*/
IMethod createMethod(String contents, IJavaElement sibling, boolean force, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a type in this type with the
* given contents.
* <p>
* Optionally, the new type can be positioned before the specified
* sibling. If no sibling is specified, the type will be appended
* to this type.</p>
*
* <p>It is possible that a type with the same name already exists in this type.
* The value of the <code>force</code> parameter affects the resolution of
* such a conflict:<ul>
* <li> <code>true</code> - in this case the type is created with the new contents</li>
* <li> <code>false</code> - in this case a <code>JavaModelException</code> is thrown</li>
* </ul></p>
*
* @param contents the given contents
* @param sibling the given sibling
* @param force a flag in case the same name already exists in this type
* @param monitor the given progress monitor
* @exception JavaModelException if the element could not be created. Reasons include:
* <ul>
* <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
* <li> A <code>CoreException</code> occurred while updating an underlying resource
* <li> The specified sibling is not a child of this type (INVALID_SIBLING)
* <li> The contents could not be recognized as a type declaration (INVALID_CONTENTS)
* <li> This type is read-only (binary) (READ_ONLY)
* <li> There was a naming collision with an existing field (NAME_COLLISION)
* </ul>
* @return a type in this type with the given contents
*/
IType createType(String contents, IJavaElement sibling, boolean force, IProgressMonitor monitor)
throws JavaModelException;
/**
* Finds the methods in this type that correspond to
* the given method.
* A method m1 corresponds to another method m2 if:
* <ul>
* <li>m1 has the same element name as m2.
* <li>m1 has the same number of arguments as m2 and
* the simple names of the argument types must be equals.
* <li>m1 exists.
* </ul>
* @param method the given method
* @return the found method or <code>null</code> if no such methods can be found.
*
* @since 2.0
*/
IMethod[] findMethods(IMethod method);
/**
* Returns the children of this type that have the given category as a <code>@category</code> tag.
* Returns an empty array if no children with this category exist.
*
* <p>
* The results are listed in the order in which they appear in the source or class file.
* </p>
*
* @return the children for the given category.
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.2
*/
IJavaElement[] getChildrenForCategory(String category) throws JavaModelException;
/**
* Returns the simple name of this type, unqualified by package or enclosing type.
* This is a handle-only method.
*
* Note that the element name of an anonymous source type and lambda expressions
* is always empty.
*
* @return the simple name of this type
*/
String getElementName();
/**
* Returns the field with the specified name
* in this type (for example, <code>"bar"</code>).
* This is a handle-only method. The field may or may not exist.
*
* @param name the given name
* @return the field with the specified name in this type
*/
IField getField(String name);
/**
* Returns the fields declared by this type in the order in which they appear
* in the source or class file. For binary types, this includes synthetic fields.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the fields declared by this type
*/
IField[] getFields() throws JavaModelException;
/**
* Returns the fully qualified name of this type,
* including qualification for any containing types and packages.
* This is the name of the package, followed by <code>'.'</code>,
* followed by the type-qualified name.
* <p>
* <b>Note</b>: The enclosing type separator used in the type-qualified
* name is <code>'$'</code>, not <code>'.'</code>.
* </p>
* This method is fully equivalent to <code>getFullyQualifiedName('$')</code>.
* This is a handle-only method.
*
* @see IType#getTypeQualifiedName()
* @see IType#getFullyQualifiedName(char)
* @return the fully qualified name of this type
*/
String getFullyQualifiedName();
/**
* Returns the fully qualified name of this type,
* including qualification for any containing types and packages.
* This is the name of the package, followed by <code>'.'</code>,
* followed by the type-qualified name using the <code>enclosingTypeSeparator</code>.
*
* For example:
* <ul>
* <li>the fully qualified name of a class B defined as a member of a class A in a compilation unit A.java
* in a package x.y using the '.' separator is "x.y.A.B"</li>
* <li>the fully qualified name of a class B defined as a member of a class A in a compilation unit A.java
* in a package x.y using the '$' separator is "x.y.A$B"</li>
* <li>the fully qualified name of a binary type whose class file is x/y/A$B.class
* using the '.' separator is "x.y.A.B"</li>
* <li>the fully qualified name of a binary type whose class file is x/y/A$B.class
* using the '$' separator is "x.y.A$B"</li>
* <li>the fully qualified name of an anonymous binary type whose class file is x/y/A$1.class
* using the '.' separator is "x.y.A.1"</li>
* </ul>
*
* This is a handle-only method.
*
* @param enclosingTypeSeparator the given enclosing type separator
* @return the fully qualified name of this type, including qualification for any containing types and packages
* @see IType#getTypeQualifiedName(char)
* @since 2.0
*/
String getFullyQualifiedName(char enclosingTypeSeparator);
/**
* Returns this type's fully qualified name using a '.' enclosing type separator
* followed by its type parameters between angle brackets if it is a generic type.
* For example, "p.X<T>", "java.util.Map<java.lang.String, p.X>"
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the fully qualified parameterized representation of this type
* @since 3.1
*/
String getFullyQualifiedParameterizedName() throws JavaModelException;
/**
* Returns the initializer with the specified position relative to
* the order they are defined in the source.
* Numbering starts at 1 (thus the first occurrence is occurrence 1, not occurrence 0).
* This is a handle-only method. The initializer may or may not be present.
*
* @param occurrenceCount the specified position
* @return the initializer with the specified position relative to the order they are defined in the source
*/
IInitializer getInitializer(int occurrenceCount);
/**
* Returns the initializers declared by this type. For binary types this is an
* empty collection. For source types, the results are listed in the order in
* which they appear in the source.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the initializers declared by this type
*/
IInitializer[] getInitializers() throws JavaModelException;
/**
* Returns the binding key for this type only if the given type is {@link #isResolved() resolved}.
* A binding key is a key that uniquely identifies this type. It allows access
* to generic info for parameterized types.
*
* <p>If the given type is not resolved, the returned key is simply the java element's key.
* </p>
* @return the binding key for this type
* @see org.eclipse.jdt.core.dom.IBinding#getKey()
* @see BindingKey
* @since 3.1
* @see #isResolved()
*/
String getKey();
/**
* Returns the method with the specified name and parameter types
* in this type (for example, <code>"foo", {"I", "QString;"}</code>).
* To get the handle for a constructor, the name specified must be the
* simple name of the enclosing type.
* This is a handle-only method. The method may or may not be present.
* <p>
* The type signatures may be either unresolved (for source types)
* or resolved (for binary types), and either basic (for basic types)
* or rich (for parameterized types). See {@link Signature} for details.
* </p>
*
* @param name the given name
* @param parameterTypeSignatures the given parameter types
* @return the method with the specified name and parameter types in this type
*/
IMethod getMethod(String name, String[] parameterTypeSignatures);
/**
* Returns the methods and constructors declared by this type.
* For binary types, this may include the special <code><clinit></code> method
* and synthetic methods.
* <p>
* The results are listed in the order in which they appear in the source or class file.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the methods and constructors declared by this type
*/
IMethod[] getMethods() throws JavaModelException;
/**
* Returns the package fragment in which this element is defined.
* This is a handle-only method.
*
* @return the package fragment in which this element is defined
*/
IPackageFragment getPackageFragment();
/**
* Returns the name of this type's superclass, or <code>null</code>
* for source types that do not specify a superclass.
* <p>
* For interfaces, the superclass name is always <code>"java.lang.Object"</code>.
* For source types, the name as declared is returned, for binary types,
* the resolved, qualified name is returned.
* For anonymous types, the superclass name is the name appearing after the 'new' keyword'.
* If the superclass is a parameterized type, the string
* may include its type arguments enclosed in "<>".
* If the returned string is needed for anything other than display
* purposes, use {@link #getSuperclassTypeSignature()} which returns
* a structured type signature string containing more precise information.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the name of this type's superclass, or <code>null</code> for source types that do not specify a superclass
*/
String getSuperclassName() throws JavaModelException;
/**
* Returns the type signature of this type's superclass, or
* <code>null</code> if none.
* <p>
* The type signature may be either unresolved (for source types)
* or resolved (for binary types), and either basic (for basic types)
* or rich (for parameterized types). See {@link Signature} for details.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the type signature of this type's superclass, or
* <code>null</code> if none
* @since 3.0
*/
String getSuperclassTypeSignature() throws JavaModelException;
/**
* Returns the type signatures of the interfaces that this type
* implements or extends, in the order in which they are listed in the
* source.
* <p>
* For classes and enum types, this gives the interfaces that this
* class implements. For interfaces and annotation types,
* this gives the interfaces that this interface extends.
* An empty collection is returned if this type does not implement or
* extend any interfaces. For anonymous types, an empty collection is
* always returned.
* </p>
* <p>
* The type signatures may be either unresolved (for source types)
* or resolved (for binary types), and either basic (for basic types)
* or rich (for parameterized types). See {@link Signature} for details.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the type signatures of interfaces that this type implements
* or extends, in the order in which they are listed in the source,
* an empty collection if none
* @since 3.0
*/
String[] getSuperInterfaceTypeSignatures() throws JavaModelException;
/**
* Returns the names of interfaces that this type implements or extends,
* in the order in which they are listed in the source.
* <p>
* For classes, this gives the interfaces that this class implements.
* For interfaces, this gives the interfaces that this interface extends.
* An empty collection is returned if this type does not implement or
* extend any interfaces. For source types, simple names are returned,
* for binary types, qualified names are returned.
* For anonymous types, an empty collection is always returned.
* If the list of supertypes includes parameterized types,
* the string may include type arguments enclosed in "<>".
* If the result is needed for anything other than display
* purposes, use {@link #getSuperInterfaceTypeSignatures()} which returns
* structured signature strings containing more precise information.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the names of interfaces that this type implements or extends, in the order in which they are listed in the source,
* an empty collection if none
*/
String[] getSuperInterfaceNames() throws JavaModelException;
/**
* Returns the formal type parameter signatures for this type.
* Returns an empty array if this type has no formal type parameters.
* <p>
* The formal type parameter signatures may be either unresolved (for source
* types) or resolved (for binary types). See {@link Signature} for details.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the formal type parameter signatures of this type,
* in the order declared in the source, an empty array if none
* @see Signature
* @since 3.0
*/
String[] getTypeParameterSignatures() throws JavaModelException;
/**
* Returns the formal type parameters for this type.
* Returns an empty array if this type has no formal type parameters.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the formal type parameters of this type,
* in the order declared in the source, an empty array if none
* @since 3.1
*/
ITypeParameter[] getTypeParameters() throws JavaModelException;
/**
* Returns the member type declared in this type with the given simple name.
* This is a handle-only method. The type may or may not exist.
*
* @param name the given simple name
* @return the member type declared in this type with the given simple name
*/
IType getType(String name);
/**
* Returns the type parameter declared in this type with the given name.
* This is a handle-only method. The type parameter may or may not exist.
*
* @param name the given simple name
* @return the type parameter declared in this type with the given name
* @since 3.1
*/
ITypeParameter getTypeParameter(String name);
/**
* Returns the type-qualified name of this type,
* including qualification for any enclosing types,
* but not including package qualification.
* For source types, this consists of the simple names of any enclosing types,
* separated by <code>'$'</code>, followed by the simple name of this type
* or the occurrence count of this type if it is anonymous.
* For binary types, this is the name of the class file without the ".class" suffix.
* This method is fully equivalent to <code>getTypeQualifiedName('$')</code>.
* This is a handle-only method.
*
* @see #getTypeQualifiedName(char)
* @return the type-qualified name of this type
*/
String getTypeQualifiedName();
/**
* Returns the type-qualified name of this type,
* including qualification for any enclosing types,
* but not including package qualification.
* For source types, this consists of the simple names of any enclosing types,
* separated by <code>enclosingTypeSeparator</code>, followed by the
* simple name of this type or the occurrence count of this type if it is anonymous.
* For binary types, this is the name of the class file without the ".class" suffix,
* and - since 3.4 - the '$' characters in the class file name are replaced with the
* <code>enclosingTypeSeparator</code> character.
*
* For example:
* <ul>
* <li>the type qualified name of a class B defined as a member of a class A
* using the '.' separator is "A.B"</li>
* <li>the type qualified name of a class B defined as a member of a class A
* using the '$' separator is "A$B"</li>
* <li>the type qualified name of a binary type whose class file is A$B.class
* using the '.' separator is "A.B"</li>
* <li>the type qualified name of a binary type whose class file is A$B.class
* using the '$' separator is "A$B"</li>
* <li>the type qualified name of an anonymous binary type whose class file is A$1.class
* using the '.' separator is "A.1"</li>
* </ul>
*
* This is a handle-only method.
*
* @param enclosingTypeSeparator the specified enclosing type separator
* @return the type-qualified name of this type
* @since 2.0
*/
String getTypeQualifiedName(char enclosingTypeSeparator);
/**
* Returns the immediate member types declared by this type.
* The results are listed in the order in which they appear in the source or class file.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return the immediate member types declared by this type
*/
IType[] getTypes() throws JavaModelException;
/**
* Returns whether this type represents an anonymous type.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents an anonymous type, false otherwise
* @since 2.0
*/
boolean isAnonymous() throws JavaModelException;
/**
* Returns whether this type represents a class.
* <p>
* Note that a class can neither be an interface, an enumeration class, nor an annotation type.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents a class, false otherwise
*/
boolean isClass() throws JavaModelException;
/**
* Returns whether this type represents an enumeration class.
* <p>
* Note that an enumeration class can neither be a class, an interface, nor an annotation type.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents an enumeration class,
* false otherwise
* @since 3.0
*/
boolean isEnum() throws JavaModelException;
/**
* Returns whether this type represents an interface.
* <p>
* Note that an interface can also be an annotation type, but it can neither be a class nor an enumeration class.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents an interface, false otherwise
*/
boolean isInterface() throws JavaModelException;
/**
* Returns whether this type represents an annotation type.
* <p>
* Note that an annotation type is also an interface, but it can neither be a class nor an enumeration class.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents an annotation type,
* false otherwise
* @since 3.0
*/
boolean isAnnotation() throws JavaModelException;
/**
* Returns whether this type represents a local type. For an anonymous type,
* this method returns true.
* <p>
* Note: This deviates from JLS3 14.3, which states that anonymous types are
* not local types since they do not have a name.
* </p>
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents a local type, false otherwise
* @see org.eclipse.jdt.core.dom.ITypeBinding#isLocal()
* @since 2.0
*/
boolean isLocal() throws JavaModelException;
/**
* Returns whether this type represents a member type.
*
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return true if this type represents a member type, false otherwise
* @since 2.0
*/
boolean isMember() throws JavaModelException;
/**
* Returns whether this type represents a resolved type.
* If a type is resolved, its key contains resolved information.
*
* @return whether this type represents a resolved type.
* @since 3.1
*/
boolean isResolved();
/**
* Loads a previously saved ITypeHierarchy from an input stream. A type hierarchy can
* be stored using ITypeHierachy#store(OutputStream).
*
* Only hierarchies originally created by the following methods can be loaded:
* <ul>
* <li>IType#newSupertypeHierarchy(IProgressMonitor)</li>
* <li>IType#newTypeHierarchy(IJavaProject, IProgressMonitor)</li>
* <li>IType#newTypeHierarchy(IProgressMonitor)</li>
* </ul>
*
* @param input stream where hierarchy will be read
* @param monitor the given progress monitor
* @return the stored hierarchy
* @exception JavaModelException if the hierarchy could not be restored, reasons include:
* - type is not the focus of the hierarchy or
* - unable to read the input stream (wrong format, IOException during reading, ...)
* @see ITypeHierarchy#store(java.io.OutputStream, IProgressMonitor)
* @since 2.1
*/
ITypeHierarchy loadTypeHierachy(InputStream input, IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type and all of its supertypes.
*
* @param monitor the given progress monitor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return a type hierarchy for this type containing this type and all of its supertypes
*/
ITypeHierarchy newSupertypeHierarchy(IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type and all of its supertypes, considering types in the given
* working copies. In other words, the list of working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that passing an empty working copy will be as if the original compilation
* unit had been deleted.
* </p>
*
* @param workingCopies the working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing this type and all of its supertypes
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.0
*/
ITypeHierarchy newSupertypeHierarchy(ICompilationUnit[] workingCopies, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type and all of its supertypes, considering types in the given
* working copies. In other words, the list of working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that passing an empty working copy will be as if the original compilation
* unit had been deleted.
* </p>
*
* @param workingCopies the working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing this type and all of its supertypes
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 2.0
* @deprecated Use {@link #newSupertypeHierarchy(ICompilationUnit[], IProgressMonitor)} instead
*/
ITypeHierarchy newSupertypeHierarchy(IWorkingCopy[] workingCopies, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type and all of its supertypes, considering types in the
* working copies with the given owner.
* In other words, the owner's working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* <p>
*
* @param owner the owner of working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing this type and all of its supertypes
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.0
*/
ITypeHierarchy newSupertypeHierarchy(WorkingCopyOwner owner, IProgressMonitor monitor)
throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes
* in the context of the given project.
*
* @param project the given project
* @param monitor the given progress monitor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes
* in the context of the given project
*/
ITypeHierarchy newTypeHierarchy(IJavaProject project, IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes
* in the context of the given project, considering types in the
* working copies with the given owner.
* In other words, the owner's working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* <p>
*
* @param project the given project
* @param owner the owner of working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes
* in the context of the given project
* @since 3.0
*/
ITypeHierarchy newTypeHierarchy(IJavaProject project, WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace.
*
* @param monitor the given progress monitor
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace
*/
ITypeHierarchy newTypeHierarchy(IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace,
* considering types in the given working copies. In other words, the list of working
* copies that will take precedence over their original compilation units in the workspace.
* <p>
* Note that passing an empty working copy will be as if the original compilation
* unit had been deleted.
*
* @param workingCopies the working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.0
*/
ITypeHierarchy newTypeHierarchy(ICompilationUnit[] workingCopies, IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace,
* considering types in the given working copies. In other words, the list of working
* copies that will take precedence over their original compilation units in the workspace.
* <p>
* Note that passing an empty working copy will be as if the original compilation
* unit had been deleted.
*
* @param workingCopies the working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 2.0
* @deprecated Use {@link #newTypeHierarchy(ICompilationUnit[], IProgressMonitor)} instead
*/
ITypeHierarchy newTypeHierarchy(IWorkingCopy[] workingCopies, IProgressMonitor monitor) throws JavaModelException;
/**
* Creates and returns a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace,
* considering types in the working copies with the given owner.
* In other words, the owner's working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* <p>
*
* @param owner the owner of working copies that take precedence over their original compilation units
* @param monitor the given progress monitor
* @return a type hierarchy for this type containing
* this type, all of its supertypes, and all its subtypes in the workspace
* @exception JavaModelException if this element does not exist or if an
* exception occurs while accessing its corresponding resource.
* @since 3.0
*/
ITypeHierarchy newTypeHierarchy(WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException;
/**
* Resolves the given type name within the context of this type (depending on the type hierarchy
* and its imports).
* <p>
* Multiple answers might be found in case there are ambiguous matches.
* </p>
* <p>
* Each matching type name is decomposed as an array of two strings, the first denoting the package
* name (dot-separated) and the second being the type name. The package name is empty if it is the
* default package. The type name is the type qualified name using a '.' enclosing type separator.
* </p>
* <p>
* Returns <code>null</code> if unable to find any matching type.
* </p>
*<p>
* For example, resolution of <code>"Object"</code> would typically return
* <code>{{"java.lang", "Object"}}</code>. Another resolution that returns
* <code>{{"", "X.Inner"}}</code> represents the inner type Inner defined in type X in the
* default package.
* </p>
*
* @param typeName the given type name
* @exception JavaModelException if code resolve could not be performed.
* @return the resolved type names or <code>null</code> if unable to find any matching type
* @see #getTypeQualifiedName(char)
*/
String[][] resolveType(String typeName) throws JavaModelException;
/**
* Resolves the given type name within the context of this type (depending on the type hierarchy
* and its imports) and using the given owner's working copies, considering types in the
* working copies with the given owner. In other words, the owner's working copies will take
* precedence over their original compilation units in the workspace.
* <p>
* Note that if a working copy is empty, it will be as if the original compilation
* unit had been deleted.
* </p>
* <p>Multiple answers might be found in case there are ambiguous matches.
* </p>
* <p>
* Each matching type name is decomposed as an array of two strings, the first denoting the package
* name (dot-separated) and the second being the type name. The package name is empty if it is the
* default package. The type name is the type qualified name using a '.' enclosing type separator.
* </p>
* <p>
* Returns <code>null</code> if unable to find any matching type.
*</p>
*<p>
* For example, resolution of <code>"Object"</code> would typically return
* <code>{{"java.lang", "Object"}}</code>. Another resolution that returns
* <code>{{"", "X.Inner"}}</code> represents the inner type Inner defined in type X in the
* default package.
* </p>
*
* @param typeName the given type name
* @param owner the owner of working copies that take precedence over their original compilation units
* @exception JavaModelException if code resolve could not be performed.
* @return the resolved type names or <code>null</code> if unable to find any matching type
* @see #getTypeQualifiedName(char)
* @since 3.0
*/
String[][] resolveType(String typeName, WorkingCopyOwner owner) throws JavaModelException;
/**
* Returns whether this type represents a lambda expression.
*
* @return true if this type represents a lambda expression, false otherwise
* @since 3.10
*/
public boolean isLambda();
}