/*******************************************************************************
* Copyright (c) 1998, 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:
* rbarkhouse - 2009-05-05 14:32:00 - initial implementation
******************************************************************************/
package org.eclipse.persistence.oxm.mappings.converters;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import org.eclipse.persistence.exceptions.ValidationException;
import org.eclipse.persistence.internal.oxm.XMLConversionManager;
import org.eclipse.persistence.internal.oxm.mappings.Field;
import org.eclipse.persistence.internal.security.PrivilegedClassForName;
import org.eclipse.persistence.mappings.DatabaseMapping;
import org.eclipse.persistence.mappings.converters.Converter;
import org.eclipse.persistence.oxm.mappings.XMLCompositeDirectCollectionMapping;
import org.eclipse.persistence.sessions.Session;
/**
* <p><b>Purpose:</b> Provides an implementation of Converter that can be used to convert a
* collection of Objects into a space separated list of Strings and back. Used with
* XMLCompositeDirectCollectionMapping to implement the behaviour of the XmlList annotation
*
* @see XMLCompositeDirectCollectionMapping
* @see XMLConverter
* @see Converter
*/
public class XMLListConverter implements Converter {
private XMLConversionManager conversionManager;
private XMLCompositeDirectCollectionMapping mapping;
private Class objectClass = null;
private String objectClassName = null;
public Object convertDataValueToObjectValue(Object dataValue, Session session) {
return this.conversionManager.convertStringToList(dataValue, getObjectClass(), mapping.getContainerPolicy(), ((Field)mapping.getField()).getSchemaType());
}
public Object convertObjectValueToDataValue(Object objectValue, Session session) {
return this.conversionManager.convertListToString(objectValue, ((Field)mapping.getField()).getSchemaType());
}
public void initialize(DatabaseMapping mapping, Session session) {
this.conversionManager = (XMLConversionManager) session.getDatasourcePlatform().getConversionManager();
this.mapping = (XMLCompositeDirectCollectionMapping) mapping;
try {
if (getObjectClassName() != null) {
ClassLoader loader = session.getDatasourcePlatform().getConversionManager().getLoader();
Class aClass = AccessController.doPrivileged(new PrivilegedClassForName(getObjectClassName(), true, loader));
setObjectClass(aClass);
}
} catch (PrivilegedActionException pae) {
throw ValidationException.classNotFoundWhileConvertingClassNames(getObjectClassName(), pae.getException());
}
}
public boolean isMutable() {
return false;
}
/**
* Get the Class name of the elements of this collection's "sub-collection".
* Only applicable for DirectCollections of Lists (for example, for an
* ArrayList<ArrayList<Double>>, FieldSubElementClassName would be "java.lang.Double").
* @return String the name of the Class of the elements of this collection's "sub-collection"
*/
public String getObjectClassName() {
return objectClassName;
}
/**
* Set the Class name of the elements of this collection's "sub-collection".
* Only applicable for DirectCollections of Lists (for example, for an
* ArrayList<ArrayList<Double>>, FieldSubElementClassName would be "java.lang.Double").
* @param aClassName the name of the Class of the elements of this collection's "sub-collection"
*/
public void setObjectClassName(String aClassName) {
objectClassName = aClassName;
}
/**
* Get the Class of the elements of this collection's "sub-collection".
* Only applicable for DirectCollections of Lists (for example, for an
* ArrayList<ArrayList<Double>>, FieldSubElementClass would be java.lang.Double.class).
* @return Class the Class of the elements of this collection's "sub-collection"
*/
public Class getObjectClass() {
return objectClass;
}
/**
* Set the Class of the elements of this collection's "sub-collection".
* Only applicable for DirectCollections of Lists (for example, for an
* ArrayList<ArrayList<Double>>, FieldSubElementClass would be java.lang.Double.class).
* @param aClass the Class of the elements of this collection's "sub-collection"
*/
public void setObjectClass(Class aClass) {
this.objectClass = aClass;
if (this.objectClassName == null) {
this.objectClassName = aClass.getName();
}
}
}