1 package org.apache.lucene.queryParser.standard.config;
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6 * this work for additional information regarding copyright ownership.
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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.PhraseSlopQueryNodeProcessor;
25 import org.apache.lucene.util.AttributeImpl;
28 * This attribute is used by {@link PhraseSlopQueryNodeProcessor} processor and
29 * must be defined in the {@link QueryConfigHandler}. This attribute tells the
30 * processor what is the default phrase slop when no slop is defined in a
33 * @see org.apache.lucene.queryParser.standard.config.FuzzyAttribute
39 public class FuzzyAttributeImpl extends AttributeImpl implements
40 FuzzyAttribute, ConfigAttribute {
42 private static final long serialVersionUID = -2104763012527049527L;
44 private AbstractQueryConfig config;
47 enableBackwards = false;
50 public FuzzyAttributeImpl() {
54 public void setPrefixLength(int prefixLength) {
55 getFuzzyConfig().setPrefixLength(prefixLength);
58 public int getPrefixLength() {
59 return getFuzzyConfig().getPrefixLength();
62 public void setFuzzyMinSimilarity(float minSimilarity) {
63 getFuzzyConfig().setMinSimilarity(minSimilarity);
66 private FuzzyConfig getFuzzyConfig() {
67 FuzzyConfig fuzzyConfig = config.get(ConfigurationKeys.FUZZY_CONFIG);
69 if (fuzzyConfig == null) {
70 fuzzyConfig = new FuzzyConfig();
71 config.set(ConfigurationKeys.FUZZY_CONFIG, fuzzyConfig);
78 public float getFuzzyMinSimilarity() {
79 return getFuzzyConfig().getMinSimilarity();
84 throw new UnsupportedOperationException();
88 public void copyTo(AttributeImpl target) {
89 throw new UnsupportedOperationException();
93 public boolean equals(Object other) {
95 if (other instanceof FuzzyAttributeImpl
96 && ((FuzzyAttributeImpl) other).getPrefixLength() == getPrefixLength()) {
107 public int hashCode() {
108 return Integer.valueOf(getPrefixLength()).hashCode();
112 public String toString() {
113 FuzzyConfig fuzzyConfig = getFuzzyConfig();
114 return "<fuzzyAttribute prefixLength=" + fuzzyConfig.getPrefixLength()
115 + ",minSimilarity=" + fuzzyConfig.getMinSimilarity() + "/>";
118 public void setQueryConfigHandler(AbstractQueryConfig config) {
119 this.config = config;
121 if (!config.has(ConfigurationKeys.FUZZY_CONFIG)) {
122 config.set(ConfigurationKeys.FUZZY_CONFIG, new FuzzyConfig());