KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > outerj > daisy > query > model > AbstractMultiArgPredicate


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.outerj.daisy.query.model;
17
18 import org.outerj.daisy.query.QueryContext;
19 import org.outerj.daisy.repository.query.QueryException;
20
21 import java.util.ArrayList JavaDoc;
22 import java.util.Iterator JavaDoc;
23
24 public abstract class AbstractMultiArgPredicate extends AbstractPredicateExpr {
25     protected final Identifier identifier;
26     protected final ArrayList JavaDoc literals = new ArrayList JavaDoc();
27     protected QValueType valueType;
28
29     public AbstractMultiArgPredicate(Identifier identifier) {
30         this.identifier = identifier;
31     }
32
33     public void add(Literal literal) {
34         literals.add(literal);
35     }
36
37     public void prepare(QueryContext context) throws QueryException {
38         identifier.prepare(context);
39         valueType = identifier.getValueType() != QValueType.UNDEFINED ? identifier.getValueType() : QValueType.STRING;
40         
41         Iterator JavaDoc literalsIt = literals.iterator();
42         while (literalsIt.hasNext()) {
43             Literal literal = (Literal)literalsIt.next();
44             literal.prepare(context);
45         }
46     }
47 }
48
Popular Tags