Source code: com/ibatis/sqlmap/engine/mapping/sql/dynamic/elements/IsPropertyAvailableTagHandler.java
1 /*
2 * Copyright 2004 Clinton Begin
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 com.ibatis.sqlmap.engine.mapping.sql.dynamic.elements;
17
18 import com.ibatis.common.beans.Probe;
19 import com.ibatis.common.beans.ProbeFactory;
20
21 import java.util.Map;
22
23 public class IsPropertyAvailableTagHandler extends ConditionalTagHandler {
24
25 private static final Probe PROBE = ProbeFactory.getProbe();
26
27 public boolean isCondition(SqlTagContext ctx, SqlTag tag, Object parameterObject) {
28 if (parameterObject == null) {
29 return false;
30 } else if (parameterObject instanceof Map) {
31 return ((Map)parameterObject).containsKey(tag.getPropertyAttr());
32 } else {
33 return PROBE.hasReadableProperty(parameterObject, tag.getPropertyAttr());
34 }
35 }
36
37 }