01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.el;
31:
32: import com.caucho.util.L10N;
33:
34: import javax.el.ELContext;
35: import javax.el.ELException;
36: import javax.el.PropertyNotFoundException;
37: import java.math.BigInteger;
38: import java.util.logging.Logger;
39:
40: /**
41: * Abstract implementation class for an expression.
42: */
43: public class BigIntegerValueExpression extends AbstractValueExpression {
44: protected static final Logger log = Logger
45: .getLogger(BigIntegerValueExpression.class.getName());
46: protected static final L10N L = new L10N(
47: BigIntegerValueExpression.class);
48:
49: private Class _expectedType;
50:
51: public BigIntegerValueExpression(Expr expr,
52: String expressionString, Class expectedType) {
53: super (expr, expressionString);
54:
55: _expectedType = expectedType;
56: }
57:
58: public BigIntegerValueExpression(Expr expr, String expressionString) {
59: super (expr, expressionString);
60: }
61:
62: public BigIntegerValueExpression(Expr expr) {
63: super (expr);
64: }
65:
66: public BigIntegerValueExpression() {
67: }
68:
69: public Class<?> getExpectedType() {
70: if (_expectedType != null)
71: return _expectedType;
72: else
73: return BigInteger.class;
74: }
75:
76: @Override
77: public Object getValue(ELContext context)
78: throws PropertyNotFoundException, ELException {
79: return _expr.evalBigInteger(context);
80: }
81: }
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