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/*******************************************************************************
* Copyright (c) 2007, 2009 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.gen.internal;
public interface OverwriteConfirmer {
/**
* Return whether the entity generator should overwrite the specified
* file.
*/
boolean overwrite(String className);
final class Always implements OverwriteConfirmer {
public static final OverwriteConfirmer INSTANCE = new Always();
public static OverwriteConfirmer instance() {
return INSTANCE;
}
// ensure single instance
private Always() {
super();
}
// everything will be overwritten
public boolean overwrite(String arg0) {
return true;
}
@Override
public String toString() {
return "OverwriteConfirmer.Always"; //$NON-NLS-1$
}
}
final class Never implements OverwriteConfirmer {
public static final OverwriteConfirmer INSTANCE = new Never();
public static OverwriteConfirmer instance() {
return INSTANCE;
}
// ensure single instance
private Never() {
super();
}
// nothing will be overwritten
public boolean overwrite(String arg0) {
return false;
}
@Override
public String toString() {
return "OverwriteConfirmer.Never"; //$NON-NLS-1$
}
}
}
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