01: /*
02: * Copyright 2006, 2007 Odysseus Software GmbH
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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 de.odysseus.el.tree.impl.ast;
17:
18: import javax.el.ELContext;
19: import javax.el.ELException;
20:
21: import de.odysseus.el.tree.Bindings;
22:
23: public final class AstBracket extends AstProperty {
24: private final AstNode property;
25:
26: public AstBracket(AstNode base, AstNode property, boolean lvalue,
27: boolean strict) {
28: super (base, lvalue, strict);
29: this .property = property;
30: }
31:
32: @Override
33: protected Object getProperty(Bindings bindings, ELContext context)
34: throws ELException {
35: return property.eval(bindings, context);
36: }
37:
38: @Override
39: public String toString() {
40: return "[...]";
41: }
42:
43: @Override
44: public void appendStructure(StringBuilder b, Bindings bindings) {
45: getChild(0).appendStructure(b, bindings);
46: b.append("[");
47: getChild(1).appendStructure(b, bindings);
48: b.append("]");
49: }
50:
51: public int getCardinality() {
52: return 2;
53: }
54:
55: @Override
56: public AstNode getChild(int i) {
57: return i == 1 ? property : super.getChild(i);
58: }
59: }
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