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/*******************************************************************************
* Copyright (c) 2010 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.context.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.common.core.utility.TextRange;
import org.eclipse.jpt.jpa.core.context.NamedColumn;
import org.eclipse.jpt.jpa.core.context.ReadOnlyNamedColumn;
import org.eclipse.jpt.jpa.core.context.VirtualNamedColumn;
import org.eclipse.jpt.jpa.core.context.java.JavaJpaContextNode;
/**
* Java virtual<ul>
* <li>column
* <li>join column
* </ul>
* <strong>NB:</strong> all state is sync'ed/updated in {@link #update()}
* because <em>all</em> of its derived from the context model (i.e. none of it
* is derived from the resource model).
*/
public abstract class AbstractJavaVirtualNamedColumn<O extends ReadOnlyNamedColumn.Owner, C extends NamedColumn>
extends AbstractJavaJpaContextNode
implements VirtualNamedColumn
{
protected final O owner;
protected String specifiedName;
protected String defaultName;
protected String columnDefinition;
protected AbstractJavaVirtualNamedColumn(JavaJpaContextNode parent, O owner) {
super(parent);
this.owner = owner;
}
// ********** synchronize/update **********
@Override
public void update() {
super.update();
this.setSpecifiedName(this.buildSpecifiedName());
this.setDefaultName(this.buildDefaultName());
this.setColumnDefinition(this.buildColumnDefinition());
}
// ********** column **********
/**
* This should never return <code>null</code>.
*/
public abstract C getOverriddenColumn();
// ********** name **********
public String getName() {
return (this.specifiedName != null) ? this.specifiedName : this.defaultName;
}
public String getSpecifiedName() {
return this.specifiedName;
}
protected void setSpecifiedName(String name) {
String old = this.specifiedName;
this.specifiedName = name;
this.firePropertyChanged(SPECIFIED_NAME_PROPERTY, old, name);
}
protected String buildSpecifiedName() {
return this.getOverriddenColumn().getSpecifiedName();
}
public String getDefaultName() {
return this.defaultName;
}
protected void setDefaultName(String name) {
String old = this.defaultName;
this.defaultName = name;
this.firePropertyChanged(DEFAULT_NAME_PROPERTY, old, name);
}
protected String buildDefaultName() {
return this.owner.getDefaultColumnName();
}
// ********** column definition **********
public String getColumnDefinition() {
return this.columnDefinition;
}
protected void setColumnDefinition(String columnDefinition) {
String old = this.columnDefinition;
this.columnDefinition = columnDefinition;
this.firePropertyChanged(COLUMN_DEFINITION_PROPERTY, old, columnDefinition);
}
protected String buildColumnDefinition() {
return this.getOverriddenColumn().getColumnDefinition();
}
// ********** validation **********
public TextRange getValidationTextRange(CompilationUnit astRoot) {
return null; // not sure this column is validated...
}
// ********** misc **********
public boolean isVirtual() {
return true;
}
@Override
public void toString(StringBuilder sb) {
String table = this.getTable();
if (table != null) {
sb.append(table);
sb.append('.');
}
sb.append(this.getName());
}
}
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