/*******************************************************************************
* Copyright (c) 1998, 2008 Oracle. 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 from Oracle TopLink
* 05/16/2008-1.0M8 Guy Pelletier
* - 218084: Implement metadata merging functionality between mapping files
******************************************************************************/
package org.eclipse.persistence.internal.jpa.metadata.queries;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.persistence.internal.jpa.metadata.ORMetadata;
import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAccessibleObject;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.queries.ColumnResult;
import org.eclipse.persistence.queries.EntityResult;
import org.eclipse.persistence.queries.FieldResult;
import org.eclipse.persistence.queries.SQLResultSetMapping;
/**
* INTERNAL:
* Object to hold onto an sql result mapping metadata.
*
* @author Guy Pelletier
* @since TopLink EJB 3.0 Reference Implementation
*/
public class SQLResultSetMappingMetadata extends ORMetadata {
private List<String> m_columnResults = new ArrayList<String>();
private List<EntityResultMetadata> m_entityResults = new ArrayList<EntityResultMetadata>();
private String m_name;
/**
* INTERNAL:
* Used for OX mapping.
*/
public SQLResultSetMappingMetadata() {
super("<sql-result-set-mapping>");
}
/**
* INTERNAL:
*/
public SQLResultSetMappingMetadata(Annotation sqlResultSetMapping, MetadataAccessibleObject accessibleObject) {
super(sqlResultSetMapping, accessibleObject);
m_name = (String) MetadataHelper.invokeMethod("name", sqlResultSetMapping);
for (Annotation entityResult : (Annotation[]) MetadataHelper.invokeMethod("entities", sqlResultSetMapping)) {
m_entityResults.add(new EntityResultMetadata(entityResult, accessibleObject));
}
for (Object columnResult : (Annotation[]) MetadataHelper.invokeMethod("columns", sqlResultSetMapping)) {
m_columnResults.add((String)MetadataHelper.invokeMethod("name", columnResult));
}
}
/**
* INTERNAL:
*/
@Override
public boolean equals(Object objectToCompare) {
if (objectToCompare instanceof SQLResultSetMappingMetadata) {
SQLResultSetMappingMetadata sqlResultSetMapping = (SQLResultSetMappingMetadata) objectToCompare;
if (! valuesMatch(m_name, sqlResultSetMapping.getName())) {
return false;
}
if (! valuesMatch(m_columnResults, sqlResultSetMapping.getColumnResults())) {
return false;
}
return valuesMatch(m_entityResults, sqlResultSetMapping.getEntityResults());
}
return false;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public List<String> getColumnResults() {
return m_columnResults;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public List<EntityResultMetadata> getEntityResults() {
return m_entityResults;
}
/**
* INTERNAL:
*/
@Override
public String getIdentifier() {
return m_name;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public String getName() {
return m_name;
}
/**
* INTERNAL:
*/
@Override
public void initXMLObject(MetadataAccessibleObject accessibleObject) {
super.initXMLObject(accessibleObject);
initXMLObjects(m_entityResults, accessibleObject);
}
/**
* INTERNAL:
* Process an sql result set mapping metadata into a EclipseLink
* SqlResultSetMapping and store it on the session.
*/
public void process(AbstractSession session, ClassLoader loader) {
// Initialize a new SqlResultSetMapping (with the metadata name)
SQLResultSetMapping mapping = new SQLResultSetMapping(getName());
// Process the entity results.
for (EntityResultMetadata eResult : m_entityResults) {
EntityResult entityResult = new EntityResult(MetadataHelper.getClassForName(eResult.getEntityClass().getName(), loader));
// Process the field results.
if (eResult.hasFieldResults()) {
for (FieldResultMetadata fResult : eResult.getFieldResults()) {
entityResult.addFieldResult(new FieldResult(fResult.getName(), fResult.getColumn()));
}
}
// Process the discriminator value;
entityResult.setDiscriminatorColumn(eResult.getDiscriminatorColumn());
// Add the result to the SqlResultSetMapping.
mapping.addResult(entityResult);
}
// Process the column results.
for (String columnResult : m_columnResults) {
mapping.addResult(new ColumnResult(columnResult));
}
session.getProject().addSQLResultSetMapping(mapping);
}
/**
* INTERNAL:
* Used for OX mapping.
*/
protected void setColumnResults(List<String> columnResults) {
m_columnResults = columnResults;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setEntityResults(List<EntityResultMetadata> entityResults) {
m_entityResults = entityResults;
}
/**
* INTERNAL:
* Used for OX mapping.
*/
public void setName(String name) {
m_name = name;
}
}