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/*******************************************************************************
* Copyright (c) 2010, 2011 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.jpa.core.internal.jpa1.context.orm;
import java.util.ListIterator;
import org.eclipse.jpt.common.core.utility.TextRange;
import org.eclipse.jpt.common.utility.internal.iterators.EmptyListIterator;
import org.eclipse.jpt.jpa.core.context.JoinColumn;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.RelationshipMapping;
import org.eclipse.jpt.jpa.core.context.TypeMapping;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinColumn;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinColumnRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.internal.context.orm.AbstractOrmXmlContextNode;
import org.eclipse.jpt.jpa.db.Table;
/**
* Used by
* {@link org.eclipse.jpt.jpa.core.internal.context.orm.GenericOrmOneToManyRelationship#buildJoinColumnStrategy()}
* in a JPA 1.0 project.
*/
public class NullOrmJoinColumnRelationshipStrategy
extends AbstractOrmXmlContextNode
implements OrmJoinColumnRelationshipStrategy
{
public NullOrmJoinColumnRelationshipStrategy(OrmJoinColumnRelationship parent) {
super(parent);
}
// ********** join columns **********
public ListIterator<OrmJoinColumn> joinColumns() {
return EmptyListIterator.<OrmJoinColumn>instance();
}
public int joinColumnsSize() {
return 0;
}
// ********** specified join columns **********
public ListIterator<OrmJoinColumn> specifiedJoinColumns() {
return EmptyListIterator.<OrmJoinColumn>instance();
}
public int specifiedJoinColumnsSize() {
return 0;
}
public boolean hasSpecifiedJoinColumns() {
return false;
}
public OrmJoinColumn getSpecifiedJoinColumn(int index) {
throw new UnsupportedOperationException();
}
public OrmJoinColumn addSpecifiedJoinColumn() {
throw new UnsupportedOperationException();
}
public OrmJoinColumn addSpecifiedJoinColumn(int index) {
throw new UnsupportedOperationException();
}
public void removeSpecifiedJoinColumn(JoinColumn joinColumn) {
throw new UnsupportedOperationException();
}
public void removeSpecifiedJoinColumn(int index) {
throw new UnsupportedOperationException();
}
public void moveSpecifiedJoinColumn(int targetIndex, int sourceIndex) {
throw new UnsupportedOperationException();
}
// ********** default join column **********
public OrmJoinColumn getDefaultJoinColumn() {
return null;
}
// ********** validation **********
public TextRange getValidationTextRange() {
return null;
}
public String getColumnTableNotValidDescription() {
return null;
}
// ********** misc **********
@Override
public OrmJoinColumnRelationship getParent() {
return (OrmJoinColumnRelationship) super.getParent();
}
public OrmJoinColumnRelationship getRelationship() {
return this.getParent();
}
public void initializeFrom(ReadOnlyJoinColumnRelationshipStrategy oldStrategy) {
// NOP
}
public void initializeFromVirtual(ReadOnlyJoinColumnRelationshipStrategy oldStrategy) {
// NOP
}
public void addStrategy() {
// NOP
}
public void removeStrategy() {
// NOP
}
public boolean isTargetForeignKey() {
return false;
}
public TypeMapping getRelationshipTarget() {
return null;
}
public String getTableName() {
return null;
}
public boolean isOverridable() {
return false;
}
public boolean tableNameIsInvalid(String tableName) {
return true;
}
public Table resolveDbTable(String tableName) {
return null;
}
public TypeMapping getRelationshipSource() {
return this.getRelationshipMapping().getTypeMapping();
}
protected RelationshipMapping getRelationshipMapping() {
return this.getRelationship().getMapping();
}
}
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