/*
* #!
* Ontopia Navigator
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* !#
*/
package net.ontopia.topicmaps.nav2.taglibs.tolog;
import java.util.Collection;
import net.ontopia.topicmaps.nav2.core.ContextManagerIF;
import net.ontopia.utils.CollectionUtils;
/**
* INTERNAL: Helper class used when creating QueryProcessors. Helps
* the query processor map query variable names to the values of a
* particular row, and make these available to the ContextManager.
*/
public class ContextManagerScopingMapWrapper extends ContextManagerMapWrapper {
public ContextManagerScopingMapWrapper(ContextManagerIF contextManager) {
super(contextManager);
}
public Object get(Object key) {
Collection coll = (Collection) super.get(key);
if (coll == null)
return null;
return CollectionUtils.getFirstElement(coll);
}
}