/*******************************************************************************
* Copyright (c) 2008 Oracle Corporation.
* 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:
* Cameron Bateman - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facelet.core.internal.cm.strategy;
import org.eclipse.jst.jsf.common.dom.TagIdentifier;
import org.eclipse.jst.jsf.facelet.core.internal.cm.ExternalTagInfo;
import org.eclipse.jst.jsf.facelet.core.internal.cm.TagInfo;
/**
* Super class of all external meta-data strategy.
*
* @author cbateman
*
*/
/* package */abstract class AbstractExternalMetadataStrategy implements
IExternalMetadataStrategy
{
private final String _displayName;
private final String _id;
protected AbstractExternalMetadataStrategy(final String id,
final String displayName)
{
_id = id;
_displayName = displayName;
}
public final TagInfo getNoResult()
{
// this value must be "==" comparable
return ExternalTagInfo.NULL_INSTANCE;
}
public abstract TagInfo perform(TagIdentifier input) throws Exception;
public final String getDisplayName()
{
return _displayName;
}
public String getId()
{
return _id;
}
}