/*******************************************************************************
* Copyright (c) 2011, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.persistence.internal.jpa.metadata.queries;
import org.eclipse.persistence.annotations.Direction;
import org.eclipse.persistence.internal.helper.DatabaseField;
import org.eclipse.persistence.internal.helper.DatabaseType;
import org.eclipse.persistence.internal.jpa.metadata.MetadataProject;
import org.eclipse.persistence.internal.jpa.metadata.ORMetadata;
import org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor;
import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation;
import org.eclipse.persistence.platform.database.oracle.plsql.PLSQLCursor;
import org.eclipse.persistence.platform.database.oracle.plsql.PLSQLStoredFunctionCall;
import org.eclipse.persistence.platform.database.oracle.plsql.PLSQLStoredProcedureCall;
/**
* INTERNAL:
* Object to hold onto a PLSQL parameter meta-data.
*
* Key notes:
* - any metadata mapped from XML to this class must be compared in the
* equals method.
* - all metadata mapped from XML should be initialized in the initXMLObject
* method.
* - when loading from annotations, the constructor accepts the metadata
* accessor this metadata was loaded from. Used it to look up any
* 'companion' annotation needed for processing.
* - methods should be preserved in alphabetical order.
*
* @author James Sutherland
* @since EclipseLink 2.3
*/
public class PLSQLParameterMetadata extends ORMetadata {
private Boolean m_optional;
private String m_direction;
private String m_databaseType;
private String m_name;
private String m_queryParameter;
private Integer m_length;
private Integer m_precision;
private Integer m_scale;
/**
* INTERNAL:
* Used for XML loading.
*/
public PLSQLParameterMetadata() {
super("<plsql-parameter>");
}
/**
* INTERNAL:
* Used for annotation loading.
*/
public PLSQLParameterMetadata(MetadataAnnotation storedProcedureParameter, MetadataAccessor accessor) {
super(storedProcedureParameter, accessor);
m_direction = storedProcedureParameter.getAttributeString("direction");
m_name = storedProcedureParameter.getAttributeString("name");
m_queryParameter = storedProcedureParameter.getAttributeString("queryParameter");
m_databaseType = storedProcedureParameter.getAttributeString("databaseType");
m_optional = storedProcedureParameter.getAttributeBooleanDefaultFalse("optional");
m_length = storedProcedureParameter.getAttributeInteger("length");
m_precision = storedProcedureParameter.getAttributeInteger("precision");
m_scale = storedProcedureParameter.getAttributeInteger("scale");
}
/**
* INTERNAL:
*/
@Override
public boolean equals(Object objectToCompare) {
if (objectToCompare instanceof PLSQLParameterMetadata) {
PLSQLParameterMetadata parameter = (PLSQLParameterMetadata) objectToCompare;
if (! valuesMatch(m_databaseType, parameter.getDatabaseType())) {
return false;
}
if (! valuesMatch(m_direction, parameter.getDirection())) {
return false;
}
if (! valuesMatch(m_length, parameter.getLength())) {
return false;
}
if (! valuesMatch(m_precision, parameter.getPrecision())) {
return false;
}
if (! valuesMatch(m_name, parameter.getName())) {
return false;
}
if (! valuesMatch(m_optional, parameter.getOptional())) {
return false;
}
return valuesMatch(m_queryParameter, parameter.getQueryParameter());
}
return false;
}
@Override
public int hashCode() {
int result = m_optional != null ? m_optional.hashCode() : 0;
result = 31 * result + (m_direction != null ? m_direction.hashCode() : 0);
result = 31 * result + (m_databaseType != null ? m_databaseType.hashCode() : 0);
result = 31 * result + (m_name != null ? m_name.hashCode() : 0);
result = 31 * result + (m_queryParameter != null ? m_queryParameter.hashCode() : 0);
result = 31 * result + (m_length != null ? m_length.hashCode() : 0);
result = 31 * result + (m_precision != null ? m_precision.hashCode() : 0);
return result;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public String getDatabaseType() {
return m_databaseType;
}
/**
* Return the DataType enum constant for the String type name. If type is
* not a JDBCType, OraclePLSQLType, PLSQLCursor or a ComplexMetadataType,
* the type will be wrapped in a PLSQLrecord.
*/
@Override
protected DatabaseType getDatabaseTypeEnum(String type) {
// handle cursors
if (Direction.OUT_CURSOR.name().equals(m_direction)) {
return new PLSQLCursor(type);
}
return super.getDatabaseTypeEnum(type);
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public String getDirection() {
return m_direction;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public Integer getLength() {
return m_length;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public String getName() {
return m_name;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public Boolean getOptional() {
return m_optional;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public Integer getPrecision() {
return m_precision;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public String getQueryParameter() {
return m_queryParameter;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public Integer getScale() {
return m_scale;
}
/**
* INTERNAL:
*/
public void process(PLSQLStoredProcedureCall call, boolean functionReturn) {
// Process the procedure parameter name, defaults to the
// argument field name.
// TODO: Log a message when defaulting.
String procedureParameterName = m_name;
if (m_name == null || m_name.equals("")) {
procedureParameterName = m_queryParameter;
}
if ((m_optional != null) && m_optional) {
call.addOptionalArgument(procedureParameterName);
}
DatabaseType type = getDatabaseTypeEnum(getDatabaseType());
// Process the parameter direction
if (functionReturn) {
// check for cursor return type
if (Direction.OUT_CURSOR.name().equals(m_direction)) {
// the constructor by default adds a RETURN argument, so remove it
((PLSQLStoredFunctionCall)call).getArguments().remove(0);
((PLSQLStoredFunctionCall)call).useNamedCursorOutputAsResultSet(Direction.OUT_CURSOR.name(), type);
} else {
if (getLength() != null) {
((PLSQLStoredFunctionCall)call).setResult(type, getLength());
} else if (getPrecision() != null) {
((PLSQLStoredFunctionCall)call).setResult(type, getPrecision(), getScale());
} else {
((PLSQLStoredFunctionCall)call).setResult(type);
}
}
} else if (m_direction == null || m_direction.equals(Direction.IN.name())) {
// TODO: Log a defaulting message if m_direction is null.
if (getLength() != null) {
call.addNamedArgument(procedureParameterName, type, getLength());
} else if (getPrecision() != null) {
call.addNamedArgument(procedureParameterName, type, getPrecision(), getScale());
} else {
call.addNamedArgument(procedureParameterName, type);
}
} else if (m_direction.equals(Direction.OUT.name())) {
if (getLength() != null) {
call.addNamedOutputArgument(procedureParameterName, type, getLength());
} else if (getPrecision() != null) {
call.addNamedOutputArgument(procedureParameterName, type, getPrecision(), getScale());
} else {
call.addNamedOutputArgument(procedureParameterName, type);
}
} else if (m_direction.equals(Direction.IN_OUT.name())) {
if (getLength() != null) {
call.addNamedInOutputArgument(procedureParameterName, type, getLength());
} else if (getPrecision() != null) {
call.addNamedInOutputArgument(procedureParameterName, type, getPrecision(), getScale());
} else {
call.addNamedInOutputArgument(procedureParameterName, type);
}
} else if (m_direction.equals(Direction.OUT_CURSOR.name())) {
boolean multipleCursors = false;
if (call.getParameterTypes().contains(call.OUT_CURSOR)) {
multipleCursors = true;
}
call.useNamedCursorOutputAsResultSet(procedureParameterName, type);
// There are multiple cursor output parameters, then do not use the cursor as the result set.
if (multipleCursors) {
call.setIsCursorOutputProcedure(false);
}
}
}
/**
* INTERNAL:
* set the project level settings on the database fields
*/
protected void setDatabaseFieldSettings(DatabaseField field, MetadataProject project){
if (project.useDelimitedIdentifier()) {
field.setUseDelimiters(true);
} else if (project.getShouldForceFieldNamesToUpperCase() && !field.shouldUseDelimiters()) {
field.useUpperCaseForComparisons(true);
}
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setDatabaseType(String databaseType) {
m_databaseType = databaseType;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setDirection(String direction) {
m_direction = direction;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setLength(Integer length) {
m_length = length;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setName(String name) {
m_name = name;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setOptional(Boolean optional) {
m_optional = optional;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setPrecision(Integer precision) {
m_precision = precision;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setQueryParameter(String queryParameter) {
m_queryParameter = queryParameter;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setScale(Integer scale) {
m_scale = scale;
}
}