/**
* Licensed under the Common Development and Distribution License,
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.sun.com/cddl/
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.sun.facelets.el;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import javax.el.ELContext;
import javax.el.ELException;
import javax.el.PropertyNotFoundException;
import javax.el.PropertyNotWritableException;
import javax.el.ValueExpression;
import com.sun.facelets.tag.TagAttribute;
/**
*
*
* @author Jacob Hookom
* @version $Id: TagValueExpression.java,v 1.6 2005/08/24 04:38:57 jhook Exp $
*/
public final class TagValueExpression extends ValueExpression implements
Externalizable {
private static final long serialVersionUID = 1L;
private ValueExpression orig;
private String attr;
public TagValueExpression() {
super();
}
public TagValueExpression(TagAttribute attr, ValueExpression orig) {
this.attr = attr.toString();
this.orig = orig;
}
public Class getExpectedType() {
return this.orig.getExpectedType();
}
public Class getType(ELContext context) {
try {
return this.orig.getType(context);
} catch (PropertyNotFoundException pnfe) {
throw new PropertyNotFoundException(this.attr + ": "
+ pnfe.getMessage(), pnfe.getCause());
} catch (ELException e) {
throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
}
}
public Object getValue(ELContext context) {
try {
return this.orig.getValue(context);
} catch (PropertyNotFoundException pnfe) {
throw new PropertyNotFoundException(this.attr + ": "
+ pnfe.getMessage(), pnfe.getCause());
} catch (ELException e) {
throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
}
}
public boolean isReadOnly(ELContext context) {
try {
return this.orig.isReadOnly(context);
} catch (PropertyNotFoundException pnfe) {
throw new PropertyNotFoundException(this.attr + ": "
+ pnfe.getMessage(), pnfe.getCause());
} catch (ELException e) {
throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
}
}
public void setValue(ELContext context, Object value) {
try {
this.orig.setValue(context, value);
} catch (PropertyNotFoundException pnfe) {
throw new PropertyNotFoundException(this.attr + ": "
+ pnfe.getMessage(), pnfe.getCause());
} catch (PropertyNotWritableException pnwe) {
throw new PropertyNotWritableException(this.attr + ": "
+ pnwe.getMessage(), pnwe.getCause());
} catch (ELException e) {
throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
}
}
public boolean equals(Object obj) {
return this.orig.equals(obj);
}
public String getExpressionString() {
return this.orig.getExpressionString();
}
public int hashCode() {
return this.orig.hashCode();
}
public boolean isLiteralText() {
return this.orig.isLiteralText();
}
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
this.orig = (ValueExpression) in.readObject();
this.attr = in.readUTF();
}
public void writeExternal(ObjectOutput out) throws IOException {
out.writeObject(this.orig);
out.writeUTF(this.attr);
}
public String toString() {
return this.attr + ": " + this.orig;
}
}