http://lucene.apache.org/lucene-parent/lucene-queries: Lucene Queries Module (The Apache Software Foundation) 
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.lucene.queries.function.valuesource;
import org.apache.lucene.queries.function.ValueSource;



A ValueSource that abstractly represents ValueSources for poly fields, and other things. 
/**
 * A {@link ValueSource} that abstractly represents {@link ValueSource}s for
 * poly fields, and other things.
 **/
public abstract class MultiValueSource extends ValueSource {

  public abstract int dimension();
}