1 package org.apache.lucene.queryParser.standard.processors;
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20 import java.util.List;
22 import org.apache.lucene.queryParser.core.nodes.ParametricRangeQueryNode;
23 import org.apache.lucene.queryParser.core.nodes.QueryNode;
24 import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl;
25 import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
26 import org.apache.lucene.queryParser.standard.nodes.AbstractRangeQueryNode;
27 import org.apache.lucene.queryParser.standard.nodes.WildcardQueryNode;
28 import org.apache.lucene.search.MultiTermQuery;
31 * This processor instates the default
32 * {@link org.apache.lucene.search.MultiTermQuery.RewriteMethod},
33 * {@link MultiTermQuery#CONSTANT_SCORE_AUTO_REWRITE_DEFAULT}, for multi-term
36 public class MultiTermRewriteMethodProcessor extends QueryNodeProcessorImpl {
38 public static final String TAG_ID = "MultiTermRewriteMethodConfiguration";
41 protected QueryNode postProcessNode(QueryNode node) {
43 // set setMultiTermRewriteMethod for WildcardQueryNode and
44 // PrefixWildcardQueryNode
45 if (node instanceof WildcardQueryNode
46 || node instanceof AbstractRangeQueryNode) {
49 // read the attribute value and use a TAG to take the value to the Builder
50 MultiTermQuery.RewriteMethod rewriteMethod = getQueryConfigHandler()
51 .get(ConfigurationKeys.MULTI_TERM_REWRITE_METHOD);
53 if (rewriteMethod == null) {
54 // This should not happen, this attribute is created in the
55 // StandardQueryConfigHandler
56 throw new IllegalArgumentException(
57 "StandardQueryConfigHandler.ConfigurationKeys.MULTI_TERM_REWRITE_METHOD should be set on the QueryConfigHandler");
61 node.setTag(MultiTermRewriteMethodProcessor.TAG_ID, rewriteMethod);
69 protected QueryNode preProcessNode(QueryNode node) {
74 protected List<QueryNode> setChildrenOrder(List<QueryNode> children) {