01: /*
02: * Copyright 2004-2007 Gary Bentley
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may
05: * not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: * http://www.apache.org/licenses/LICENSE-2.0
08: *
09: * Unless required by applicable law or agreed to in writing, software
10: * distributed under the License is distributed on an "AS IS" BASIS,
11: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: * See the License for the specific language governing permissions and
13: * limitations under the License.
14: */
15: package org.josql.expressions;
16:
17: import org.josql.Query;
18: import org.josql.QueryExecutionException;
19:
20: public abstract class ValueExpression extends Expression {
21:
22: public Object getValue(Object o, Query q)
23: throws QueryExecutionException {
24:
25: return this .evaluate(o, q);
26:
27: }
28:
29: public abstract Object evaluate(Object o, Query q)
30: throws QueryExecutionException;
31:
32: }
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