--- /dev/null
+package org.apache.lucene.index;
+
+/**
+ * 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.IOException;
+
+/** Used by DocumentsWriter to maintain per-thread state.
+ * We keep a separate Posting hash and other state for each
+ * thread and then merge postings hashes from all threads
+ * when writing the segment. */
+final class DocumentsWriterThreadState {
+
+ boolean isIdle = true; // false if this is currently in use by a thread
+ int numThreads = 1; // Number of threads that share this instance
+ final DocConsumerPerThread consumer;
+ final DocumentsWriter.DocState docState;
+
+ final DocumentsWriter docWriter;
+
+ public DocumentsWriterThreadState(DocumentsWriter docWriter) throws IOException {
+ this.docWriter = docWriter;
+ docState = new DocumentsWriter.DocState();
+ docState.maxFieldLength = docWriter.maxFieldLength;
+ docState.infoStream = docWriter.infoStream;
+ docState.similarity = docWriter.similarity;
+ docState.docWriter = docWriter;
+ consumer = docWriter.consumer.addThread(this);
+ }
+
+ void doAfterFlush() {
+ numThreads = 0;
+ }
+}