/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.search.bridge.builtin;
import java.util.Map;
import org.apache.lucene.document.Document;
import org.hibernate.search.bridge.FieldBridge;
import org.hibernate.search.bridge.LuceneOptions;
/**
* Each entry ({@code null included}) of the values in a {@link java.util.Map} is indexed using the specified {@link org.hibernate.search.bridge.FieldBridge}.
* <br>
* A {@code null} array is not indexed.
*
* @author Davide D'Alto
*/
public class MapBridge implements FieldBridge {
private final FieldBridge bridge;
/**
* @param bridge
* the {@link org.hibernate.search.bridge.FieldBridge} used for each entry of a {@link java.util.Map} object.
*/
public MapBridge(FieldBridge bridge) {
this.bridge = bridge;
}
/*
* (non-Javadoc)
*
* @see org.hibernate.search.bridge.FieldBridge#set(java.lang.String, java.lang.Object, org.apache.lucene.document.Document, org.hibernate.search.bridge.LuceneOptions)
*/
@Override
public void set(String fieldName, Object value, Document document, LuceneOptions luceneOptions) {
if ( value != null ) {
indexNotNullMap( fieldName, value, document, luceneOptions );
}
}
protected void indexNotNullMap(String name, Object value, Document document, LuceneOptions luceneOptions) {
Iterable<?> collection = ((Map<?,?>) value).values();
for ( Object entry : collection ) {
indexEntry( name, entry, document, luceneOptions );
}
}
protected void indexEntry(String fieldName, Object entry, Document document, LuceneOptions luceneOptions) {
bridge.set( fieldName, entry, document, luceneOptions );
}
}