| 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(); |
| } |