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LUCENE-9322: Add Lucene90 codec, including VectorFormat
This commit adds support for dense floating point VectorFields. The new VectorValues class provides access to the indexed vectors.
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Michael Sokolov
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Oct 18, 2020
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| ;; set up Lucene style for emacs | ||
| ((java-mode . ((c-basic-offset . 2)))) | ||
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@@ -7,7 +7,8 @@ build | |
| dist | ||
| lib | ||
| test-lib | ||
| /*~ | ||
| *~ | ||
| .#* | ||
| /build.properties | ||
| /.idea | ||
| lucene/**/*.iml | ||
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42 changes: 42 additions & 0 deletions
42
lucene/backward-codecs/src/java/org/apache/lucene/codecs/lucene87/package.html
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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. | ||
| --> | ||
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| <!doctype html public "-//w3c//dtd html 4.0 transitional//en"> | ||
| <!-- | ||
| 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. | ||
| --> | ||
| <html> | ||
| <head> | ||
| <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> | ||
| </head> | ||
| <body> | ||
| Lucene 8.7 file format. | ||
| </body> | ||
| </html> |
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51 changes: 51 additions & 0 deletions
51
lucene/codecs/src/java/org/apache/lucene/codecs/simpletext/SimpleTextVectorFormat.java
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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.codecs.simpletext; | ||
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| import java.io.IOException; | ||
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| import org.apache.lucene.codecs.VectorFormat; | ||
| import org.apache.lucene.codecs.VectorReader; | ||
| import org.apache.lucene.codecs.VectorWriter; | ||
| import org.apache.lucene.index.SegmentReadState; | ||
| import org.apache.lucene.index.SegmentWriteState; | ||
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| /** For debugging, curiosity, transparency only!! Do not use this codec in production. | ||
| * | ||
| * <p>This codec stores all data in a single human-readable text file (_N.vec). You can view this in | ||
| * any text editor, and even edit it to alter your index. | ||
| * | ||
| * @lucene.experimental */ | ||
| public final class SimpleTextVectorFormat extends VectorFormat { | ||
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| @Override | ||
| public VectorWriter fieldsWriter(SegmentWriteState state) throws IOException { | ||
| return new SimpleTextVectorWriter(state); | ||
| } | ||
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| @Override | ||
| public VectorReader fieldsReader(SegmentReadState state) throws IOException { | ||
| return new SimpleTextVectorReader(state); | ||
| } | ||
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| /** Extension of points data file */ | ||
| static final String VECTOR_EXTENSION = "vec"; | ||
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| /** Extension of points index file */ | ||
| static final String META_EXTENSION = "gri"; | ||
| } |
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