/******************************************************************************* | |
* 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: | |
* dclarke, mnorman - Dynamic Persistence | |
* http://wiki.eclipse.org/EclipseLink/Development/Dynamic | |
* (https://bugs.eclipse.org/bugs/show_bug.cgi?id=200045) | |
* | |
******************************************************************************/ | |
package org.eclipse.persistence.internal.dynamic; | |
//EclipseLink imports | |
import org.eclipse.persistence.indirection.ValueHolder; | |
import org.eclipse.persistence.internal.dynamic.DynamicEntityImpl.PropertyWrapper; | |
import org.eclipse.persistence.internal.helper.ClassConstants; | |
import org.eclipse.persistence.internal.indirection.BasicIndirectionPolicy; | |
import org.eclipse.persistence.mappings.CollectionMapping; | |
import org.eclipse.persistence.mappings.DatabaseMapping; | |
import org.eclipse.persistence.mappings.ForeignReferenceMapping; | |
public class DynamicPropertiesInitializatonPolicy { | |
/** | |
* After entity is created, initialize all required attributes. | |
* @param type | |
* @param entity | |
*/ | |
public void initializeProperties(DynamicTypeImpl type, DynamicEntityImpl entity) { | |
if (type != null) { | |
for (DatabaseMapping mapping : type.getMappingsRequiringInitialization()) { | |
initializeDefaultValue(mapping, entity); | |
} | |
} | |
} | |
/** | |
* Initialize the default value handling primitives, collections and | |
* indirection. | |
* | |
* @param mapping | |
* @param entity | |
*/ | |
private void initializeDefaultValue(DatabaseMapping mapping, DynamicEntityImpl entity) { | |
Object value = null; | |
if (mapping.isDirectToFieldMapping() && mapping.getAttributeClassification().isPrimitive()) { | |
Class<?> primClass = mapping.getAttributeClassification(); | |
if (primClass == ClassConstants.PBOOLEAN) { | |
value = false; | |
} | |
else if (primClass == ClassConstants.PINT) { | |
value = 0; | |
} | |
else if (primClass == ClassConstants.PLONG) { | |
value = 0L; | |
} | |
else if (primClass == ClassConstants.PCHAR) { | |
value = Character.MIN_VALUE; | |
} | |
else if (primClass == ClassConstants.PDOUBLE) { | |
value = 0.0d; | |
} | |
else if (primClass == ClassConstants.PFLOAT) { | |
value = 0.0f; | |
} | |
else if (primClass == ClassConstants.PSHORT) { | |
value = Short.MIN_VALUE; | |
} | |
else if (primClass == ClassConstants.PBYTE) { | |
value = Byte.MIN_VALUE; | |
} | |
} | |
else if (mapping.isForeignReferenceMapping()) { | |
ForeignReferenceMapping refMapping = (ForeignReferenceMapping)mapping; | |
if (refMapping.usesIndirection() && | |
refMapping.getIndirectionPolicy() instanceof BasicIndirectionPolicy) { | |
value = new ValueHolder(value); | |
} | |
else if (refMapping.isCollectionMapping()) { | |
value = ((CollectionMapping)refMapping).getContainerPolicy().containerInstance(); | |
} | |
} | |
else if (mapping.isAggregateObjectMapping()) { | |
value = mapping.getReferenceDescriptor().getObjectBuilder().buildNewInstance(); | |
} | |
PropertyWrapper propertyWrapper = entity.getPropertiesMap().get(mapping.getAttributeName()); | |
// NB - only the value is set, not the 'isSet' boolean | |
propertyWrapper.setValue(value); | |
} | |
} |