LUCENE-2144: fix InstantiatedIndex to handle termDocs(null)

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@889432 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2009-12-10 21:38:39 +00:00
parent 121dbb58ba
commit 00eadcb986
2 changed files with 118 additions and 0 deletions

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/**
* 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.store.instantiated;
import org.apache.lucene.index.AbstractAllTermDocs;
class InstantiatedAllTermDocs extends AbstractAllTermDocs {
private InstantiatedIndexReader reader;
InstantiatedAllTermDocs(InstantiatedIndexReader reader) {
super(reader.maxDoc());
this.reader = reader;
}
public boolean isDeleted(int doc) {
return reader.isDeleted(doc);
}
}

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/**
* 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.index;
import java.io.IOException;
public abstract class AbstractAllTermDocs implements TermDocs {
protected int maxDoc;
protected int doc = -1;
protected AbstractAllTermDocs(int maxDoc) {
this.maxDoc = maxDoc;
}
public void seek(Term term) throws IOException {
if (term==null) {
doc = -1;
} else {
throw new UnsupportedOperationException();
}
}
public void seek(TermEnum termEnum) throws IOException {
throw new UnsupportedOperationException();
}
public int doc() {
return doc;
}
public int freq() {
return 1;
}
public boolean next() throws IOException {
return skipTo(doc+1);
}
public int read(int[] docs, int[] freqs) throws IOException {
final int length = docs.length;
int i = 0;
while (i < length && doc < maxDoc) {
if (!isDeleted(doc)) {
docs[i] = doc;
freqs[i] = 1;
++i;
}
doc++;
}
return i;
}
public boolean skipTo(int target) throws IOException {
doc = target;
while (doc < maxDoc) {
if (!isDeleted(doc)) {
return true;
}
doc++;
}
return false;
}
public void close() throws IOException {
}
public abstract boolean isDeleted(int doc);
}