svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / programming / TryFunction.java @ 44207
History | View | Annotate | Download (1.39 KB)
1 | 44138 | jjdelcerro | package org.gvsig.expressionevaluator.impl.function.programming; |
---|---|---|---|
2 | 43512 | jjdelcerro | |
3 | import org.apache.commons.lang3.Range; |
||
4 | 44138 | jjdelcerro | import org.gvsig.expressionevaluator.Codes; |
5 | 43939 | jjdelcerro | import org.gvsig.expressionevaluator.Function; |
6 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
7 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractFunction; |
8 | |||
9 | 44144 | jjdelcerro | public class TryFunction extends AbstractFunction { |
10 | 43512 | jjdelcerro | |
11 | 44144 | jjdelcerro | public static final String NAME = "TRY"; |
12 | 44138 | jjdelcerro | |
13 | 44144 | jjdelcerro | public TryFunction() {
|
14 | 44138 | jjdelcerro | super(Function.GROUP_BOOLEAN,
|
15 | NAME, |
||
16 | 44144 | jjdelcerro | Range.between(1,2), |
17 | 44038 | jjdelcerro | null,
|
18 | 44144 | jjdelcerro | NAME+"( {{expression}}, onerror )",
|
19 | null,
|
||
20 | 44038 | jjdelcerro | "Object",
|
21 | true
|
||
22 | 43939 | jjdelcerro | ); |
23 | 43512 | jjdelcerro | } |
24 | |||
25 | @Override
|
||
26 | 43939 | jjdelcerro | public boolean useArgumentsInsteadObjects() { |
27 | return true; |
||
28 | } |
||
29 | |||
30 | @Override
|
||
31 | 44138 | jjdelcerro | public boolean allowConstantFolding() { |
32 | return false; |
||
33 | } |
||
34 | |||
35 | @Override
|
||
36 | 43521 | jjdelcerro | public Object call(Interpreter interpreter, Object[] args) throws Exception { |
37 | 44038 | jjdelcerro | throw new UnsupportedOperationException("Not supported yet."); |
38 | 43939 | jjdelcerro | } |
39 | |||
40 | @Override
|
||
41 | 44138 | jjdelcerro | public Object call(Interpreter interpreter, Codes args) throws Exception { |
42 | 44144 | jjdelcerro | Object value = null; |
43 | try {
|
||
44 | value = getObject(interpreter, args, 0);
|
||
45 | } catch(Exception ex) { |
||
46 | if( args.size()>1 ) { |
||
47 | value = getObject(interpreter, args, 1);
|
||
48 | 44138 | jjdelcerro | } |
49 | 43512 | jjdelcerro | } |
50 | 43939 | jjdelcerro | return value;
|
51 | 43512 | jjdelcerro | } |
52 | |||
53 | } |