FieldsQuerypublic class FieldsQuery extends SrndQuery | Copyright 2005 The Apache Software Foundation
Licensed 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. |
| Fields Summary |
|---|
| private SrndQuery | q | | private ArrayList | fieldNames | | private final char | fieldOp | | private final String | OrOperatorName |
| Constructors Summary |
|---|
public FieldsQuery(SrndQuery q, ArrayList fieldNames, char fieldOp) /* for expanded queries, not normally visible */
this.q = q;
this.fieldNames = fieldNames;
this.fieldOp = fieldOp;
| public FieldsQuery(SrndQuery q, String fieldName, char fieldOp)
this.q = q;
fieldNames = new ArrayList();
fieldNames.add(fieldName);
this.fieldOp = fieldOp;
|
| Methods Summary |
|---|
| protected void | fieldNamesToString(java.lang.StringBuffer r)
Iterator fni = getFieldNames().listIterator();
while (fni.hasNext()) {
r.append((String) fni.next());
r.append(getFieldOperator());
}
| | public java.util.List | getFieldNames()return fieldNames;
| | public char | getFieldOperator() return fieldOp;
| | public boolean | isFieldsSubQueryAcceptable()
return false;
| | public org.apache.lucene.search.Query | makeLuceneQueryFieldNoBoost(java.lang.String fieldName, BasicQueryFactory qf)
return makeLuceneQueryNoBoost(qf); /* use this.fieldNames instead of fieldName */
| | public org.apache.lucene.search.Query | makeLuceneQueryNoBoost(BasicQueryFactory qf)
if (fieldNames.size() == 1) { /* single field name: no new queries needed */
return q.makeLuceneQueryFieldNoBoost((String) fieldNames.get(0), qf);
} else { /* OR query over the fields */
ArrayList queries = new ArrayList();
Iterator fni = getFieldNames().listIterator();
SrndQuery qc;
while (fni.hasNext()) {
qc = (SrndQuery) q.clone();
queries.add( new FieldsQuery( qc, (String) fni.next(), fieldOp));
}
boolean infix = true;
OrQuery oq = new OrQuery(queries,
true /* infix OR for field names */,
OrOperatorName);
System.out.println(getClass().toString() + ", fields expanded: " + oq.toString()); /* needs testing */
return oq.makeLuceneQueryField(null, qf);
}
| | public java.lang.String | toString()
StringBuffer r = new StringBuffer();
r.append("(");
fieldNamesToString(r);
r.append(q.toString());
r.append(")");
return r.toString();
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