package org.apache.lucene.codecs; /* * 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. */ import java.io.Closeable; import java.io.IOException; import org.apache.lucene.index.Fields; /** Abstract API that produces terms, doc, freq, prox, offset and * payloads postings. * * @lucene.experimental */ public abstract class FieldsProducer extends Fields implements Closeable { /** Sole constructor. (For invocation by subclass * constructors, typically implicit.) */ protected FieldsProducer() { } @Override public abstract void close() throws IOException; /** Returns approximate RAM bytes used */ public abstract long ramBytesUsed(); }