1 | |
package org.apache.commons.ognl; |
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
|
20 | |
|
21 | |
|
22 | |
import org.apache.commons.ognl.enhance.UnsupportedCompilationException; |
23 | |
|
24 | |
import java.util.ArrayList; |
25 | |
import java.util.Enumeration; |
26 | |
import java.util.List; |
27 | |
|
28 | |
|
29 | |
|
30 | |
|
31 | |
|
32 | |
|
33 | |
class ASTSelectFirst |
34 | |
extends SimpleNode |
35 | |
{ |
36 | |
public ASTSelectFirst( int id ) |
37 | |
{ |
38 | 2 | super( id ); |
39 | 2 | } |
40 | |
|
41 | |
public ASTSelectFirst( OgnlParser p, int id ) |
42 | |
{ |
43 | 0 | super( p, id ); |
44 | 0 | } |
45 | |
|
46 | |
protected Object getValueBody( OgnlContext context, Object source ) |
47 | |
throws OgnlException |
48 | |
{ |
49 | 1 | Node expr = children[0]; |
50 | 1 | List answer = new ArrayList(); |
51 | 1 | ElementsAccessor elementsAccessor = OgnlRuntime.getElementsAccessor( OgnlRuntime.getTargetClass( source ) ); |
52 | |
|
53 | 1 | for ( Enumeration e = elementsAccessor.getElements( source ); e.hasMoreElements(); ) |
54 | |
{ |
55 | 3 | Object next = e.nextElement(); |
56 | |
|
57 | 3 | if ( OgnlOps.booleanValue( expr.getValue( context, next ) ) ) |
58 | |
{ |
59 | 1 | answer.add( next ); |
60 | 1 | break; |
61 | |
} |
62 | 2 | } |
63 | 1 | return answer; |
64 | |
} |
65 | |
|
66 | |
public String toGetSourceString( OgnlContext context, Object target ) |
67 | |
{ |
68 | 1 | throw new UnsupportedCompilationException( "Eval expressions not supported as native java yet." ); |
69 | |
} |
70 | |
|
71 | |
public String toSetSourceString( OgnlContext context, Object target ) |
72 | |
{ |
73 | 0 | throw new UnsupportedCompilationException( "Eval expressions not supported as native java yet." ); |
74 | |
} |
75 | |
|
76 | |
public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data ) |
77 | |
throws OgnlException |
78 | |
{ |
79 | 0 | return visitor.visit( this, data ); |
80 | |
} |
81 | |
} |