1 package org.apache.lucene.queryParser.standard.config;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
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20 import org.apache.lucene.queryParser.core.config.AbstractQueryConfig;
21 import org.apache.lucene.queryParser.core.config.ConfigAttribute;
22 import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
23 import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
24 import org.apache.lucene.queryParser.standard.processors.AnalyzerQueryNodeProcessor;
25 import org.apache.lucene.util.AttributeImpl;
28 * This attribute is used by {@link AnalyzerQueryNodeProcessor} processor and
29 * must be defined in the {@link QueryConfigHandler}. This attribute tells the
30 * processor if the position increment is enabled. <br/>
32 * @see org.apache.lucene.queryParser.standard.config.PositionIncrementsAttribute
38 public class PositionIncrementsAttributeImpl extends AttributeImpl
39 implements PositionIncrementsAttribute, ConfigAttribute {
41 private static final long serialVersionUID = -2804763012793049527L;
43 private AbstractQueryConfig config;
45 { enableBackwards = false; }
47 public PositionIncrementsAttributeImpl() {}
49 public void setPositionIncrementsEnabled(boolean positionIncrementsEnabled) {
50 config.set(ConfigurationKeys.ENABLE_POSITION_INCREMENTS, positionIncrementsEnabled);
53 public boolean isPositionIncrementsEnabled() {
54 return config.get(ConfigurationKeys.ENABLE_POSITION_INCREMENTS, false);
59 throw new UnsupportedOperationException();
63 public void copyTo(AttributeImpl target) {
64 throw new UnsupportedOperationException();
68 public boolean equals(Object other) {
70 if (other instanceof PositionIncrementsAttributeImpl
71 && ((PositionIncrementsAttributeImpl) other)
72 .isPositionIncrementsEnabled() == isPositionIncrementsEnabled()) {
83 public int hashCode() {
84 return isPositionIncrementsEnabled() ? -1 : Integer.MAX_VALUE;
88 public String toString() {
89 return "<positionIncrements positionIncrementsEnabled="
90 + isPositionIncrementsEnabled() + "/>";
93 public void setQueryConfigHandler(AbstractQueryConfig config) {
96 if (!config.has(ConfigurationKeys.ENABLE_POSITION_INCREMENTS)) {
97 config.set(ConfigurationKeys.ENABLE_POSITION_INCREMENTS, false);