+++ /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 org.apache.lucene.analysis.Analyzer;
-import org.apache.lucene.index.DocumentsWriter.IndexingChain;
-import org.apache.lucene.index.IndexWriter.IndexReaderWarmer;
-import org.apache.lucene.search.Similarity;
-import org.apache.lucene.util.Version;
-
-/**
- * Holds all the configuration of {@link IndexWriter}. You
- * should instantiate this class, call the setters to set
- * your configuration, then pass it to {@link IndexWriter}.
- * Note that {@link IndexWriter} makes a private clone; if
- * you need to subsequently change settings use {@link
- * IndexWriter#getConfig}.
- *
- * <p>
- * All setter methods return {@link IndexWriterConfig} to allow chaining
- * settings conveniently, for example:
- *
- * <pre>
- * IndexWriterConfig conf = new IndexWriterConfig(analyzer);
- * conf.setter1().setter2();
- * </pre>
- *
- * @since 3.1
- */
-public final class IndexWriterConfig implements Cloneable {
-
- /**
- * Specifies the open mode for {@link IndexWriter}:
- * <ul>
- * {@link #CREATE} - creates a new index or overwrites an existing one.
- * {@link #CREATE_OR_APPEND} - creates a new index if one does not exist,
- * otherwise it opens the index and documents will be appended.
- * {@link #APPEND} - opens an existing index.
- * </ul>
- */
- public static enum OpenMode { CREATE, APPEND, CREATE_OR_APPEND }
-
- /** Default value is 128. Change using {@link #setTermIndexInterval(int)}. */
- public static final int DEFAULT_TERM_INDEX_INTERVAL = 128;
-
- /** Denotes a flush trigger is disabled. */
- public final static int DISABLE_AUTO_FLUSH = -1;
-
- /** Disabled by default (because IndexWriter flushes by RAM usage by default). */
- public final static int DEFAULT_MAX_BUFFERED_DELETE_TERMS = DISABLE_AUTO_FLUSH;
-
- /** Disabled by default (because IndexWriter flushes by RAM usage by default). */
- public final static int DEFAULT_MAX_BUFFERED_DOCS = DISABLE_AUTO_FLUSH;
-
- /**
- * Default value is 16 MB (which means flush when buffered docs consume
- * approximately 16 MB RAM).
- */
- public final static double DEFAULT_RAM_BUFFER_SIZE_MB = 16.0;
-
- /**
- * Default value for the write lock timeout (1,000 ms).
- *
- * @see #setDefaultWriteLockTimeout(long)
- */
- public static long WRITE_LOCK_TIMEOUT = 1000;
-
- /** The maximum number of simultaneous threads that may be
- * indexing documents at once in IndexWriter; if more
- * than this many threads arrive they will wait for
- * others to finish. */
- public final static int DEFAULT_MAX_THREAD_STATES = 8;
-
- /** Default setting for {@link #setReaderPooling}. */
- public final static boolean DEFAULT_READER_POOLING = false;
-
- /** Default value is 1. Change using {@link #setReaderTermsIndexDivisor(int)}. */
- public static final int DEFAULT_READER_TERMS_INDEX_DIVISOR = IndexReader.DEFAULT_TERMS_INDEX_DIVISOR;
-
- /**
- * Sets the default (for any instance) maximum time to wait for a write lock
- * (in milliseconds).
- */
- public static void setDefaultWriteLockTimeout(long writeLockTimeout) {
- WRITE_LOCK_TIMEOUT = writeLockTimeout;
- }
-
- /**
- * Returns the default write lock timeout for newly instantiated
- * IndexWriterConfigs.
- *
- * @see #setDefaultWriteLockTimeout(long)
- */
- public static long getDefaultWriteLockTimeout() {
- return WRITE_LOCK_TIMEOUT;
- }
-
- private final Analyzer analyzer;
- private volatile IndexDeletionPolicy delPolicy;
- private volatile IndexCommit commit;
- private volatile OpenMode openMode;
- private volatile Similarity similarity;
- private volatile int termIndexInterval;
- private volatile MergeScheduler mergeScheduler;
- private volatile long writeLockTimeout;
- private volatile int maxBufferedDeleteTerms;
- private volatile double ramBufferSizeMB;
- private volatile int maxBufferedDocs;
- private volatile IndexingChain indexingChain;
- private volatile IndexReaderWarmer mergedSegmentWarmer;
- private volatile MergePolicy mergePolicy;
- private volatile int maxThreadStates;
- private volatile boolean readerPooling;
- private volatile int readerTermsIndexDivisor;
-
- private Version matchVersion;
-
- /**
- * Creates a new config that with defaults that match the specified
- * {@link Version} as well as the default {@link
- * Analyzer}. If matchVersion is >= {@link
- * Version#LUCENE_32}, {@link TieredMergePolicy} is used
- * for merging; else {@link LogByteSizeMergePolicy}.
- * Note that {@link TieredMergePolicy} is free to select
- * non-contiguous merges, which means docIDs may not
- * remain montonic over time. If this is a problem you
- * should switch to {@link LogByteSizeMergePolicy} or
- * {@link LogDocMergePolicy}.
- */
- public IndexWriterConfig(Version matchVersion, Analyzer analyzer) {
- this.matchVersion = matchVersion;
- this.analyzer = analyzer;
- delPolicy = new KeepOnlyLastCommitDeletionPolicy();
- commit = null;
- openMode = OpenMode.CREATE_OR_APPEND;
- similarity = Similarity.getDefault();
- termIndexInterval = DEFAULT_TERM_INDEX_INTERVAL;
- mergeScheduler = new ConcurrentMergeScheduler();
- writeLockTimeout = WRITE_LOCK_TIMEOUT;
- maxBufferedDeleteTerms = DEFAULT_MAX_BUFFERED_DELETE_TERMS;
- ramBufferSizeMB = DEFAULT_RAM_BUFFER_SIZE_MB;
- maxBufferedDocs = DEFAULT_MAX_BUFFERED_DOCS;
- indexingChain = DocumentsWriter.defaultIndexingChain;
- mergedSegmentWarmer = null;
- if (matchVersion.onOrAfter(Version.LUCENE_32)) {
- mergePolicy = new TieredMergePolicy();
- } else {
- mergePolicy = new LogByteSizeMergePolicy();
- }
- maxThreadStates = DEFAULT_MAX_THREAD_STATES;
- readerPooling = DEFAULT_READER_POOLING;
- readerTermsIndexDivisor = DEFAULT_READER_TERMS_INDEX_DIVISOR;
- }
-
- @Override
- public Object clone() {
- // Shallow clone is the only thing that's possible, since parameters like
- // analyzer, index commit etc. do not implement Cloneable.
- try {
- return super.clone();
- } catch (CloneNotSupportedException e) {
- // should not happen
- throw new RuntimeException(e);
- }
- }
-
- /** Returns the default analyzer to use for indexing documents. */
- public Analyzer getAnalyzer() {
- return analyzer;
- }
-
- /** Specifies {@link OpenMode} of the index.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setOpenMode(OpenMode openMode) {
- this.openMode = openMode;
- return this;
- }
-
- /** Returns the {@link OpenMode} set by {@link #setOpenMode(OpenMode)}. */
- public OpenMode getOpenMode() {
- return openMode;
- }
-
- /**
- * Expert: allows an optional {@link IndexDeletionPolicy} implementation to be
- * specified. You can use this to control when prior commits are deleted from
- * the index. The default policy is {@link KeepOnlyLastCommitDeletionPolicy}
- * which removes all prior commits as soon as a new commit is done (this
- * matches behavior before 2.2). Creating your own policy can allow you to
- * explicitly keep previous "point in time" commits alive in the index for
- * some time, to allow readers to refresh to the new commit without having the
- * old commit deleted out from under them. This is necessary on filesystems
- * like NFS that do not support "delete on last close" semantics, which
- * Lucene's "point in time" search normally relies on.
- * <p>
- * <b>NOTE:</b> the deletion policy cannot be null. If <code>null</code> is
- * passed, the deletion policy will be set to the default.
- *
- * <p>Only takes effect when IndexWriter is first created.
- */
- public IndexWriterConfig setIndexDeletionPolicy(IndexDeletionPolicy delPolicy) {
- this.delPolicy = delPolicy == null ? new KeepOnlyLastCommitDeletionPolicy() : delPolicy;
- return this;
- }
-
- /**
- * Returns the {@link IndexDeletionPolicy} specified in
- * {@link #setIndexDeletionPolicy(IndexDeletionPolicy)} or the default
- * {@link KeepOnlyLastCommitDeletionPolicy}/
- */
- public IndexDeletionPolicy getIndexDeletionPolicy() {
- return delPolicy;
- }
-
- /**
- * Expert: allows to open a certain commit point. The default is null which
- * opens the latest commit point.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setIndexCommit(IndexCommit commit) {
- this.commit = commit;
- return this;
- }
-
- /**
- * Returns the {@link IndexCommit} as specified in
- * {@link #setIndexCommit(IndexCommit)} or the default, <code>null</code>
- * which specifies to open the latest index commit point.
- */
- public IndexCommit getIndexCommit() {
- return commit;
- }
-
- /**
- * Expert: set the {@link Similarity} implementation used by this IndexWriter.
- * <p>
- * <b>NOTE:</b> the similarity cannot be null. If <code>null</code> is passed,
- * the similarity will be set to the default.
- *
- * @see Similarity#setDefault(Similarity)
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setSimilarity(Similarity similarity) {
- this.similarity = similarity == null ? Similarity.getDefault() : similarity;
- return this;
- }
-
- /**
- * Expert: returns the {@link Similarity} implementation used by this
- * IndexWriter. This defaults to the current value of
- * {@link Similarity#getDefault()}.
- */
- public Similarity getSimilarity() {
- return similarity;
- }
-
- /**
- * Expert: set the interval between indexed terms. Large values cause less
- * memory to be used by IndexReader, but slow random-access to terms. Small
- * values cause more memory to be used by an IndexReader, and speed
- * random-access to terms.
- * <p>
- * This parameter determines the amount of computation required per query
- * term, regardless of the number of documents that contain that term. In
- * particular, it is the maximum number of other terms that must be scanned
- * before a term is located and its frequency and position information may be
- * processed. In a large index with user-entered query terms, query processing
- * time is likely to be dominated not by term lookup but rather by the
- * processing of frequency and positional data. In a small index or when many
- * uncommon query terms are generated (e.g., by wildcard queries) term lookup
- * may become a dominant cost.
- * <p>
- * In particular, <code>numUniqueTerms/interval</code> terms are read into
- * memory by an IndexReader, and, on average, <code>interval/2</code> terms
- * must be scanned for each random term access.
- *
- * @see #DEFAULT_TERM_INDEX_INTERVAL
- *
- * <p>Takes effect immediately, but only applies to newly
- * flushed/merged segments. */
- public IndexWriterConfig setTermIndexInterval(int interval) {
- this.termIndexInterval = interval;
- return this;
- }
-
- /**
- * Returns the interval between indexed terms.
- *
- * @see #setTermIndexInterval(int)
- */
- public int getTermIndexInterval() {
- return termIndexInterval;
- }
-
- /**
- * Expert: sets the merge scheduler used by this writer. The default is
- * {@link ConcurrentMergeScheduler}.
- * <p>
- * <b>NOTE:</b> the merge scheduler cannot be null. If <code>null</code> is
- * passed, the merge scheduler will be set to the default.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setMergeScheduler(MergeScheduler mergeScheduler) {
- this.mergeScheduler = mergeScheduler == null ? new ConcurrentMergeScheduler() : mergeScheduler;
- return this;
- }
-
- /**
- * Returns the {@link MergeScheduler} that was set by
- * {@link #setMergeScheduler(MergeScheduler)}
- */
- public MergeScheduler getMergeScheduler() {
- return mergeScheduler;
- }
-
- /**
- * Sets the maximum time to wait for a write lock (in milliseconds) for this
- * instance. You can change the default value for all instances by calling
- * {@link #setDefaultWriteLockTimeout(long)}.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setWriteLockTimeout(long writeLockTimeout) {
- this.writeLockTimeout = writeLockTimeout;
- return this;
- }
-
- /**
- * Returns allowed timeout when acquiring the write lock.
- *
- * @see #setWriteLockTimeout(long)
- */
- public long getWriteLockTimeout() {
- return writeLockTimeout;
- }
-
- /**
- * Determines the minimal number of delete terms required before the buffered
- * in-memory delete terms are applied and flushed. If there are documents
- * buffered in memory at the time, they are merged and a new segment is
- * created.
-
- * <p>Disabled by default (writer flushes by RAM usage).
- *
- * @throws IllegalArgumentException if maxBufferedDeleteTerms
- * is enabled but smaller than 1
- * @see #setRAMBufferSizeMB
- *
- * <p>Takes effect immediately, but only the next time a
- * document is added, updated or deleted.
- */
- public IndexWriterConfig setMaxBufferedDeleteTerms(int maxBufferedDeleteTerms) {
- if (maxBufferedDeleteTerms != DISABLE_AUTO_FLUSH
- && maxBufferedDeleteTerms < 1)
- throw new IllegalArgumentException(
- "maxBufferedDeleteTerms must at least be 1 when enabled");
- this.maxBufferedDeleteTerms = maxBufferedDeleteTerms;
- return this;
- }
-
- /**
- * Returns the number of buffered deleted terms that will trigger a flush if
- * enabled.
- *
- * @see #setMaxBufferedDeleteTerms(int)
- */
- public int getMaxBufferedDeleteTerms() {
- return maxBufferedDeleteTerms;
- }
-
- /**
- * Determines the amount of RAM that may be used for buffering added documents
- * and deletions before they are flushed to the Directory. Generally for
- * faster indexing performance it's best to flush by RAM usage instead of
- * document count and use as large a RAM buffer as you can.
- *
- * <p>
- * When this is set, the writer will flush whenever buffered documents and
- * deletions use this much RAM. Pass in {@link #DISABLE_AUTO_FLUSH} to prevent
- * triggering a flush due to RAM usage. Note that if flushing by document
- * count is also enabled, then the flush will be triggered by whichever comes
- * first.
- *
- * <p>
- * <b>NOTE</b>: the account of RAM usage for pending deletions is only
- * approximate. Specifically, if you delete by Query, Lucene currently has no
- * way to measure the RAM usage of individual Queries so the accounting will
- * under-estimate and you should compensate by either calling commit()
- * periodically yourself, or by using {@link #setMaxBufferedDeleteTerms(int)}
- * to flush by count instead of RAM usage (each buffered delete Query counts
- * as one).
- *
- * <p>
- * <b>NOTE</b>: because IndexWriter uses <code>int</code>s when managing its
- * internal storage, the absolute maximum value for this setting is somewhat
- * less than 2048 MB. The precise limit depends on various factors, such as
- * how large your documents are, how many fields have norms, etc., so it's
- * best to set this value comfortably under 2048.
- *
- * <p>
- * The default value is {@link #DEFAULT_RAM_BUFFER_SIZE_MB}.
- *
- * <p>Takes effect immediately, but only the next time a
- * document is added, updated or deleted.
- *
- * @throws IllegalArgumentException
- * if ramBufferSize is enabled but non-positive, or it disables
- * ramBufferSize when maxBufferedDocs is already disabled
- */
- public IndexWriterConfig setRAMBufferSizeMB(double ramBufferSizeMB) {
- if (ramBufferSizeMB > 2048.0) {
- throw new IllegalArgumentException("ramBufferSize " + ramBufferSizeMB
- + " is too large; should be comfortably less than 2048");
- }
- if (ramBufferSizeMB != DISABLE_AUTO_FLUSH && ramBufferSizeMB <= 0.0)
- throw new IllegalArgumentException(
- "ramBufferSize should be > 0.0 MB when enabled");
- if (ramBufferSizeMB == DISABLE_AUTO_FLUSH && maxBufferedDocs == DISABLE_AUTO_FLUSH)
- throw new IllegalArgumentException(
- "at least one of ramBufferSize and maxBufferedDocs must be enabled");
- this.ramBufferSizeMB = ramBufferSizeMB;
- return this;
- }
-
- /** Returns the value set by {@link #setRAMBufferSizeMB(double)} if enabled. */
- public double getRAMBufferSizeMB() {
- return ramBufferSizeMB;
- }
-
- /**
- * Determines the minimal number of documents required before the buffered
- * in-memory documents are flushed as a new Segment. Large values generally
- * give faster indexing.
- *
- * <p>
- * When this is set, the writer will flush every maxBufferedDocs added
- * documents. Pass in {@link #DISABLE_AUTO_FLUSH} to prevent triggering a
- * flush due to number of buffered documents. Note that if flushing by RAM
- * usage is also enabled, then the flush will be triggered by whichever comes
- * first.
- *
- * <p>
- * Disabled by default (writer flushes by RAM usage).
- *
- * <p>Takes effect immediately, but only the next time a
- * document is added, updated or deleted.
- *
- * @see #setRAMBufferSizeMB(double)
- *
- * @throws IllegalArgumentException
- * if maxBufferedDocs is enabled but smaller than 2, or it disables
- * maxBufferedDocs when ramBufferSize is already disabled
- */
- public IndexWriterConfig setMaxBufferedDocs(int maxBufferedDocs) {
- if (maxBufferedDocs != DISABLE_AUTO_FLUSH && maxBufferedDocs < 2)
- throw new IllegalArgumentException(
- "maxBufferedDocs must at least be 2 when enabled");
- if (maxBufferedDocs == DISABLE_AUTO_FLUSH
- && ramBufferSizeMB == DISABLE_AUTO_FLUSH)
- throw new IllegalArgumentException(
- "at least one of ramBufferSize and maxBufferedDocs must be enabled");
- this.maxBufferedDocs = maxBufferedDocs;
- return this;
- }
-
- /**
- * Returns the number of buffered added documents that will trigger a flush if
- * enabled.
- *
- * @see #setMaxBufferedDocs(int)
- */
- public int getMaxBufferedDocs() {
- return maxBufferedDocs;
- }
-
- /** Set the merged segment warmer. See {@link IndexReaderWarmer}.
- *
- * <p>Takes effect on the next merge. */
- public IndexWriterConfig setMergedSegmentWarmer(IndexReaderWarmer mergeSegmentWarmer) {
- this.mergedSegmentWarmer = mergeSegmentWarmer;
- return this;
- }
-
- /** Returns the current merged segment warmer. See {@link IndexReaderWarmer}. */
- public IndexReaderWarmer getMergedSegmentWarmer() {
- return mergedSegmentWarmer;
- }
-
- /**
- * Expert: {@link MergePolicy} is invoked whenever there are changes to the
- * segments in the index. Its role is to select which merges to do, if any,
- * and return a {@link MergePolicy.MergeSpecification} describing the merges.
- * It also selects merges to do for optimize(). (The default is
- * {@link LogByteSizeMergePolicy}.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setMergePolicy(MergePolicy mergePolicy) {
- this.mergePolicy = mergePolicy == null ? new LogByteSizeMergePolicy() : mergePolicy;
- return this;
- }
-
- /**
- * Returns the current MergePolicy in use by this writer.
- *
- * @see #setMergePolicy(MergePolicy)
- */
- public MergePolicy getMergePolicy() {
- return mergePolicy;
- }
-
- /**
- * Sets the max number of simultaneous threads that may be indexing documents
- * at once in IndexWriter. Values < 1 are invalid and if passed
- * <code>maxThreadStates</code> will be set to
- * {@link #DEFAULT_MAX_THREAD_STATES}.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setMaxThreadStates(int maxThreadStates) {
- this.maxThreadStates = maxThreadStates < 1 ? DEFAULT_MAX_THREAD_STATES : maxThreadStates;
- return this;
- }
-
- /** Returns the max number of simultaneous threads that
- * may be indexing documents at once in IndexWriter. */
- public int getMaxThreadStates() {
- return maxThreadStates;
- }
-
- /** By default, IndexWriter does not pool the
- * SegmentReaders it must open for deletions and
- * merging, unless a near-real-time reader has been
- * obtained by calling {@link IndexWriter#getReader}.
- * This method lets you enable pooling without getting a
- * near-real-time reader. NOTE: if you set this to
- * false, IndexWriter will still pool readers once
- * {@link IndexWriter#getReader} is called.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- public IndexWriterConfig setReaderPooling(boolean readerPooling) {
- this.readerPooling = readerPooling;
- return this;
- }
-
- /** Returns true if IndexWriter should pool readers even
- * if {@link IndexWriter#getReader} has not been called. */
- public boolean getReaderPooling() {
- return readerPooling;
- }
-
- /** Expert: sets the {@link DocConsumer} chain to be used to process documents.
- *
- * <p>Only takes effect when IndexWriter is first created. */
- IndexWriterConfig setIndexingChain(IndexingChain indexingChain) {
- this.indexingChain = indexingChain == null ? DocumentsWriter.defaultIndexingChain : indexingChain;
- return this;
- }
-
- /** Returns the indexing chain set on {@link #setIndexingChain(IndexingChain)}. */
- IndexingChain getIndexingChain() {
- return indexingChain;
- }
-
- /** Sets the termsIndexDivisor passed to any readers that
- * IndexWriter opens, for example when applying deletes
- * or creating a near-real-time reader in {@link
- * IndexWriter#getReader}. If you pass -1, the terms index
- * won't be loaded by the readers. This is only useful in
- * advanced situations when you will only .next() through
- * all terms; attempts to seek will hit an exception.
- *
- * <p>Takes effect immediately, but only applies to
- * readers opened after this call */
- public IndexWriterConfig setReaderTermsIndexDivisor(int divisor) {
- if (divisor <= 0 && divisor != -1) {
- throw new IllegalArgumentException("divisor must be >= 1, or -1 (got " + divisor + ")");
- }
- readerTermsIndexDivisor = divisor;
- return this;
- }
-
- /** @see #setReaderTermsIndexDivisor(int) */
- public int getReaderTermsIndexDivisor() {
- return readerTermsIndexDivisor;
- }
-
- @Override
- public String toString() {
- StringBuilder sb = new StringBuilder();
- sb.append("matchVersion=").append(matchVersion).append("\n");
- sb.append("analyzer=").append(analyzer == null ? "null" : analyzer.getClass().getName()).append("\n");
- sb.append("delPolicy=").append(delPolicy.getClass().getName()).append("\n");
- sb.append("commit=").append(commit == null ? "null" : commit).append("\n");
- sb.append("openMode=").append(openMode).append("\n");
- sb.append("similarity=").append(similarity.getClass().getName()).append("\n");
- sb.append("termIndexInterval=").append(termIndexInterval).append("\n");
- sb.append("mergeScheduler=").append(mergeScheduler.getClass().getName()).append("\n");
- sb.append("default WRITE_LOCK_TIMEOUT=").append(WRITE_LOCK_TIMEOUT).append("\n");
- sb.append("writeLockTimeout=").append(writeLockTimeout).append("\n");
- sb.append("maxBufferedDeleteTerms=").append(maxBufferedDeleteTerms).append("\n");
- sb.append("ramBufferSizeMB=").append(ramBufferSizeMB).append("\n");
- sb.append("maxBufferedDocs=").append(maxBufferedDocs).append("\n");
- sb.append("mergedSegmentWarmer=").append(mergedSegmentWarmer).append("\n");
- sb.append("mergePolicy=").append(mergePolicy).append("\n");
- sb.append("maxThreadStates=").append(maxThreadStates).append("\n");
- sb.append("readerPooling=").append(readerPooling).append("\n");
- sb.append("readerTermsIndexDivisor=").append(readerTermsIndexDivisor).append("\n");
- return sb.toString();
- }
-}
fnp / pylucene.git / blobdiff