package org.omg.DynamicAny;
/**
* org/omg/DynamicAny/DynAnyOperations.java .
* Generated by the IDL-to-Java compiler (portable), version "3.2"
* from ../../../../src/share/classes/org/omg/DynamicAny/DynamicAny.idl
* Friday, May 25, 2007 3:39:58 o'clock PM GMT-05:00
*/
/**
* Any values can be dynamically interpreted (traversed) and constructed through DynAny objects.
* A DynAny object is associated with a data value which corresponds to a copy of the value
* inserted into an any.
* <P>A DynAny object may be viewed as an ordered collection of component DynAnys.
* For DynAnys representing a basic type, such as long, or a type without components,
* such as an empty exception, the ordered collection of components is empty.
* Each DynAny object maintains the notion of a current position into its collection
* of component DynAnys. The current position is identified by an index value that runs
* from 0 to n-1, where n is the number of components.
* The special index value -1 indicates a current position that points nowhere.
* For values that cannot have a current position (such as an empty exception),
* the index value is fixed at -1.
* If a DynAny is initialized with a value that has components, the index is initialized to 0.
* After creation of an uninitialized DynAny (that is, a DynAny that has no value but a TypeCode
* that permits components), the current position depends on the type of value represented by
* the DynAny. (The current position is set to 0 or -1, depending on whether the new DynAny
* gets default values for its components.)
* <P>The iteration operations rewind, seek, and next can be used to change the current position
* and the current_component operation returns the component at the current position.
* The component_count operation returns the number of components of a DynAny.
* Collectively, these operations enable iteration over the components of a DynAny, for example,
* to (recursively) examine its contents.
* <P>A constructed DynAny object is a DynAny object associated with a constructed type.
* There is a different interface, inheriting from the DynAny interface, associated with
* each kind of constructed type in IDL (fixed, enum, struct, sequence, union, array,
* exception, and value type).
* <P>A constructed DynAny object exports operations that enable the creation of new DynAny objects,
* each of them associated with a component of the constructed data value.
* As an example, a DynStruct is associated with a struct value. This means that the DynStruct
* may be seen as owning an ordered collection of components, one for each structure member.
* The DynStruct object exports operations that enable the creation of new DynAny objects,
* each of them associated with a member of the struct.
* <P>If a DynAny object has been obtained from another (constructed) DynAny object,
* such as a DynAny representing a structure member that was created from a DynStruct,
* the member DynAny is logically contained in the DynStruct.
* Calling an insert or get operation leaves the current position unchanged.
* Destroying a top-level DynAny object (one that was not obtained as a component of another DynAny)
* also destroys any component DynAny objects obtained from it.
* Destroying a non-top level DynAny object does nothing.
* Invoking operations on a destroyed top-level DynAny or any of its descendants raises OBJECT_NOT_EXIST.
* If the programmer wants to destroy a DynAny object but still wants to manipulate some component
* of the data value associated with it, then he or she should first create a DynAny for the component
* and, after that, make a copy of the created DynAny object.
* <P>The behavior of DynAny objects has been defined in order to enable efficient implementations
* in terms of allocated memory space and speed of access. DynAny objects are intended to be used
* for traversing values extracted from anys or constructing values of anys at runtime.
* Their use for other purposes is not recommended.
* <P>Insert and get operations are necessary to handle basic DynAny objects
* but are also helpful to handle constructed DynAny objects.
* Inserting a basic data type value into a constructed DynAny object
* implies initializing the current component of the constructed data value
* associated with the DynAny object. For example, invoking insert_boolean on a
* DynStruct implies inserting a boolean data value at the current position
* of the associated struct data value.
* A type is consistent for inserting or extracting a value if its TypeCode is equivalent to
* the TypeCode contained in the DynAny or, if the DynAny has components, is equivalent to the TypeCode
* of the DynAny at the current position.
* <P>DynAny and DynAnyFactory objects are intended to be local to the process in which they are
* created and used. This means that references to DynAny and DynAnyFactory objects cannot be exported
* to other processes, or externalized with ORB.object_to_string().
* If any attempt is made to do so, the offending operation will raise a MARSHAL system exception.
* Since their interfaces are specified in IDL, DynAny objects export operations defined in the standard
* org.omg.CORBA.Object interface. However, any attempt to invoke operations exported through the Object
* interface may raise the standard NO_IMPLEMENT exception.
* An attempt to use a DynAny object with the DII may raise the NO_IMPLEMENT exception.
*/
public interface DynAnyOperations
{
/**
* Returns the TypeCode associated with this DynAny object.
* A DynAny object is created with a TypeCode value assigned to it.
* This TypeCode value determines the type of the value handled through the DynAny object.
* Note that the TypeCode associated with a DynAny object is initialized at the time the
* DynAny is created and cannot be changed during lifetime of the DynAny object.
*
* @return The TypeCode associated with this DynAny object
*/
org.omg.CORBA.TypeCode type ();
/**
* Initializes the value associated with a DynAny object with the value
* associated with another DynAny object.
* The current position of the target DynAny is set to zero for values that have components
* and to -1 for values that do not have components.
*
* @param dyn_any
* @exception TypeMismatch if the type of the passed DynAny is not equivalent to the type of target DynAny
*/
void assign (org.omg.DynamicAny.DynAny dyn_any) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
/**
* Initializes the value associated with a DynAny object with the value contained in an any.
* The current position of the target DynAny is set to zero for values that have components
* and to -1 for values that do not have components.
*
* @exception TypeMismatch if the type of the passed Any is not equivalent to the type of target DynAny
* @exception InvalidValue if the passed Any does not contain a legal value (such as a null string)
*/
void from_any (org.omg.CORBA.Any value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Creates an any value from a DynAny object.
* A copy of the TypeCode associated with the DynAny object is assigned to the resulting any.
* The value associated with the DynAny object is copied into the any.
*
* @return a new Any object with the same value and TypeCode
*/
org.omg.CORBA.Any to_any ();
/**
* Compares two DynAny values for equality.
* Two DynAny values are equal if their TypeCodes are equivalent and, recursively, all component DynAnys
* have equal values.
* The current position of the two DynAnys being compared has no effect on the result of equal.
*
* @return true of the DynAnys are equal, false otherwise
*/
boolean equal (org.omg.DynamicAny.DynAny dyn_any);
/**
* Destroys a DynAny object.
* This operation frees any resources used to represent the data value associated with a DynAny object.
* It must be invoked on references obtained from one of the creation operations on the ORB interface
* or on a reference returned by DynAny.copy() to avoid resource leaks.
* Invoking destroy on component DynAny objects (for example, on objects returned by the
* current_component operation) does nothing.
* Destruction of a DynAny object implies destruction of all DynAny objects obtained from it.
* That is, references to components of a destroyed DynAny become invalid.
* Invocations on such references raise OBJECT_NOT_EXIST.
* It is possible to manipulate a component of a DynAny beyond the life time of the DynAny
* from which the component was obtained by making a copy of the component with the copy operation
* before destroying the DynAny from which the component was obtained.
*/
void destroy ();
/**
* Creates a new DynAny object whose value is a deep copy of the DynAny on which it is invoked.
* The operation is polymorphic, that is, invoking it on one of the types derived from DynAny,
* such as DynStruct, creates the derived type but returns its reference as the DynAny base type.
*
* @return a deep copy of the DynAny object
*/
org.omg.DynamicAny.DynAny copy ();
/**
* Inserts a boolean value into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_boolean (boolean value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a byte value into the DynAny. The IDL octet data type is mapped to the Java byte data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_octet (byte value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a char value into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_char (char value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a short value into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_short (short value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a short value into the DynAny. The IDL ushort data type is mapped to the Java short data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_ushort (short value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts an integer value into the DynAny. The IDL long data type is mapped to the Java int data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_long (int value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts an integer value into the DynAny. The IDL ulong data type is mapped to the Java int data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_ulong (int value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a float value into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_float (float value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a double value into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_double (double value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a string value into the DynAny.
* Both bounded and unbounded strings are inserted using this method.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception InvalidValue if the string inserted is longer than the bound of a bounded string
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_string (String value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a reference to a CORBA object into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_reference (org.omg.CORBA.Object value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a TypeCode object into the DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_typecode (org.omg.CORBA.TypeCode value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a long value into the DynAny. The IDL long long data type is mapped to the Java long data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_longlong (long value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a long value into the DynAny.
* The IDL unsigned long long data type is mapped to the Java long data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_ulonglong (long value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a char value into the DynAny. The IDL wchar data type is mapped to the Java char data type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_wchar (char value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a string value into the DynAny.
* Both bounded and unbounded strings are inserted using this method.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception InvalidValue if the string inserted is longer than the bound of a bounded string
*/
void insert_wstring (String value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts an Any value into the Any represented by this DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_any (org.omg.CORBA.Any value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts the Any value contained in the parameter DynAny into the Any represented by this DynAny.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_dyn_any (org.omg.DynamicAny.DynAny value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Inserts a reference to a Serializable object into this DynAny.
* The IDL ValueBase type is mapped to the Java Serializable type.
*
* @exception InvalidValue if this DynAny has components but has a current position of -1
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
void insert_val (java.io.Serializable value) throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the boolean value from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
boolean get_boolean () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the byte value from this DynAny. The IDL octet data type is mapped to the Java byte data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
byte get_octet () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the char value from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
char get_char () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the short value from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
short get_short () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the short value from this DynAny. The IDL ushort data type is mapped to the Java short data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
short get_ushort () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the integer value from this DynAny. The IDL long data type is mapped to the Java int data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
int get_long () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the integer value from this DynAny. The IDL ulong data type is mapped to the Java int data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
int get_ulong () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the float value from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
float get_float () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the double value from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
double get_double () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the string value from this DynAny.
* Both bounded and unbounded strings are extracted using this method.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
String get_string () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the reference to a CORBA Object from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
org.omg.CORBA.Object get_reference () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the TypeCode object from this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
org.omg.CORBA.TypeCode get_typecode () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the long value from this DynAny. The IDL long long data type is mapped to the Java long data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
long get_longlong () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the long value from this DynAny.
* The IDL unsigned long long data type is mapped to the Java long data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
long get_ulonglong () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the long value from this DynAny. The IDL wchar data type is mapped to the Java char data type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
char get_wchar () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the string value from this DynAny.
* Both bounded and unbounded strings are extracted using this method.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
*/
String get_wstring () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts an Any value contained in the Any represented by this DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
org.omg.CORBA.Any get_any () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts the Any value contained in the Any represented by this DynAny and returns it wrapped
* into a new DynAny.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
org.omg.DynamicAny.DynAny get_dyn_any () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Extracts a Serializable object from this DynAny.
* The IDL ValueBase type is mapped to the Java Serializable type.
*
* @exception TypeMismatch if the accessed component in the DynAny is of a type
* that is not equivalent to the requested type.
* @exception TypeMismatch if called on a DynAny whose current component itself has components
* @exception InvalidValue if this DynAny has components but has a current position of -1
*/
java.io.Serializable get_val () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch, org.omg.DynamicAny.DynAnyPackage.InvalidValue;
/**
* Sets the current position to index. The current position is indexed 0 to n-1, that is,
* index zero corresponds to the first component. The operation returns true if the resulting
* current position indicates a component of the DynAny and false if index indicates
* a position that does not correspond to a component.
* Calling seek with a negative index is legal. It sets the current position to -1 to indicate
* no component and returns false. Passing a non-negative index value for a DynAny that does not
* have a component at the corresponding position sets the current position to -1 and returns false.
*/
boolean seek (int index);
/**
* Is equivalent to seek(0).
*/
void rewind ();
/**
* Advances the current position to the next component.
* The operation returns true while the resulting current position indicates a component, false otherwise.
* A false return value leaves the current position at -1.
* Invoking next on a DynAny without components leaves the current position at -1 and returns false.
*/
boolean next ();
/**
* Returns the number of components of a DynAny.
* For a DynAny without components, it returns zero.
* The operation only counts the components at the top level.
* For example, if component_count is invoked on a DynStruct with a single member,
* the return value is 1, irrespective of the type of the member.
* <UL>
* <LI>For sequences, the operation returns the current number of elements.
* <LI>For structures, exceptions, and value types, the operation returns the number of members.
* <LI>For arrays, the operation returns the number of elements.
* <LI>For unions, the operation returns 2 if the discriminator indicates that a named member is active,
* otherwise, it returns 1.
* <LI>For DynFixed and DynEnum, the operation returns zero.
* </UL>
*/
int component_count ();
/**
* Returns the DynAny for the component at the current position.
* It does not advance the current position, so repeated calls to current_component
* without an intervening call to rewind, next, or seek return the same component.
* The returned DynAny object reference can be used to get/set the value of the current component.
* If the current component represents a complex type, the returned reference can be narrowed
* based on the TypeCode to get the interface corresponding to the to the complex type.
* Calling current_component on a DynAny that cannot have components,
* such as a DynEnum or an empty exception, raises TypeMismatch.
* Calling current_component on a DynAny whose current position is -1 returns a nil reference.
* The iteration operations, together with current_component, can be used
* to dynamically compose an any value. After creating a dynamic any, such as a DynStruct,
* current_component and next can be used to initialize all the components of the value.
* Once the dynamic value is completely initialized, to_any creates the corresponding any value.
*
* @exception TypeMismatch If called on a DynAny that cannot have components,
* such as a DynEnum or an empty exception
*/
org.omg.DynamicAny.DynAny current_component () throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch;
} // interface DynAnyOperations