// --------------------------------------------------------------------------
// Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// Neither the name of the Drew Davidson nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
// --------------------------------------------------------------------------
package ognl;
import ognl.enhance.
OrderedReturn;
import ognl.enhance.
UnsupportedCompilationException;
/**
* @author Luke Blanshard (blanshlu@netscape.net)
* @author Drew Davidson (drew@ognl.org)
*/
public class
ASTVarRef extends
SimpleNode implements
NodeType,
OrderedReturn {
private
String _name;
protected
Class _getterClass;
protected
String _core;
protected
String _last;
public
ASTVarRef(int
id)
{
super(
id);
}
public
ASTVarRef(
OgnlParser p, int
id)
{
super(
p,
id);
}
void
setName(
String name)
{
this.
_name =
name;
}
protected
Object getValueBody(
OgnlContext context,
Object source)
throws
OgnlException
{
return
context.
get(
_name);
}
protected void
setValueBody(
OgnlContext context,
Object target,
Object value)
throws
OgnlException
{
context.
put(
_name,
value);
}
public
Class getGetterClass()
{
return
_getterClass;
}
public
Class getSetterClass()
{
return null;
}
public
String getCoreExpression()
{
return
_core;
}
public
String getLastExpression()
{
return
_last;
}
public
String toString()
{
return "#" +
_name;
}
public
String toGetSourceString(
OgnlContext context,
Object target)
{
Object value =
context.
get(
_name);
if (
value != null) {
_getterClass =
value.
getClass();
}
context.
setCurrentType(
_getterClass);
context.
setCurrentAccessor(
context.
getClass());
context.
setCurrentObject(
value);
//context.setRoot(context.get(_name));
if (
context.
getCurrentObject() == null)
throw new
UnsupportedCompilationException("Current context object is null, can't compile var reference.");
String pre = "";
String post = "";
if (
context.
getCurrentType() != null) {
pre = "((" +
OgnlRuntime.
getCompiler().
getInterfaceClass(
context.
getCurrentType()).
getName() + ")";
post = ")";
}
if (
_parent != null &&
ASTAssign.class.
isInstance(
_parent)) {
_core = "$1.put(\"" +
_name + "\",";
_last =
pre + "$1.get(\"" +
_name + "\")" +
post;
return
_core;
}
return
pre + "$1.get(\"" +
_name + "\")" +
post;
}
public
String toSetSourceString(
OgnlContext context,
Object target)
{
return
toGetSourceString(
context,
target);
}
}