/*******************************************************************************
* Copyright (c) 2011, 2013 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 implementation
******************************************************************************/
package org.eclipse.persistence.internal.jpa.metadata.structures;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.persistence.descriptors.ClassDescriptor;
import org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor;
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.mappings.structures.ObjectRelationalDataTypeDescriptor;
/**
* Defines the metadata for the @Struct annotation for mapping
* ObjectRelationshipDataTypeDescriptor.
*
* @author James Sutherland
* @since EclipseLink 2.3
*/
public class StructMetadata extends ORMetadata {
private String name;
private List<String> fields = new ArrayList<String>();
/**
* Used for XML loading.
*/
public StructMetadata() {
super("<struct>");
}
/**
* Used for annotation loading.
*/
public StructMetadata(MetadataAnnotation struct, MetadataAccessor accessor) {
super(struct, accessor);
this.name = (String)struct.getAttribute("name");
for (Object field : (Object[])struct.getAttributeArray("fields")) {
this.fields.add((String)field);
}
}
@Override
public boolean equals(Object objectToCompare) {
if (objectToCompare instanceof StructMetadata) {
StructMetadata struct = (StructMetadata) objectToCompare;
if (! valuesMatch(this.fields, struct.getFields())) {
return false;
}
return valuesMatch(this.name, ((StructMetadata) objectToCompare).getName());
}
return false;
}
/**
* Switch the descriptor to the correct type and
* set the structure name and properties.
*/
public void process(MetadataDescriptor descriptor) {
ClassDescriptor oldDesriptor = descriptor.getClassDescriptor();
ObjectRelationalDataTypeDescriptor newDescriptor = new ObjectRelationalDataTypeDescriptor();
newDescriptor.setJavaClassName(oldDesriptor.getJavaClassName());
newDescriptor.setStructureName(getName());
for (String field : this.fields) {
newDescriptor.addFieldOrdering(field);
}
newDescriptor.setAlias("");
// This is the default, set it in case no existence-checking is set.
newDescriptor.getQueryManager().checkDatabaseForDoesExist();
if (oldDesriptor.isAggregateDescriptor()) {
newDescriptor.descriptorIsAggregate();
}
descriptor.setDescriptor(newDescriptor);
// Also need to switch the descriptor in the project.
descriptor.getProject().getProject().getOrderedDescriptors().remove(oldDesriptor);
descriptor.getProject().getProject().getOrderedDescriptors().add(newDescriptor);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<String> getFields() {
return fields;
}
public void setFields(List<String> fields) {
this.fields = fields;
}
}