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:
20: import de.odysseus.el.tree.Bindings;
21:
22: public final class AstNested extends AstRightValue {
23: private final AstNode child;
24:
25: public AstNested(AstNode child) {
26: this .child = child;
27: }
28:
29: @Override
30: public Object eval(Bindings bindings, ELContext context) {
31: return child.eval(bindings, context);
32: }
33:
34: @Override
35: public String toString() {
36: return "(...)";
37: }
38:
39: @Override
40: public void appendStructure(StringBuilder b, Bindings bindings) {
41: b.append("(");
42: child.appendStructure(b, bindings);
43: b.append(")");
44: }
45:
46: public int getCardinality() {
47: return 1;
48: }
49:
50: public AstNode getChild(int i) {
51: return i == 0 ? child : null;
52: }
53: }
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