/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.type;
import com.caucho.config.ConfigELContext;
import com.caucho.config.types.*;
import com.caucho.el.ELParser;
import com.caucho.el.Expr;
/**
* Represents a String type.
*/
public final class ExprType extends ConfigType<Expr>
{
public static final ExprType TYPE = new ExprType();
/**
* The StringType is a singleton
*/
private ExprType()
{
}
/**
* Returns the Java type.
*/
@Override
public Class<Expr> getType()
{
return Expr.class;
}
/**
* Return true for non-trim.
*/
@Override
public boolean isNoTrim()
{
return true;
}
/**
* Return true for EL
*/
@Override
public boolean isEL()
{
return false;
}
/**
* Converts the string to a value of the type.
*/
@Override
public Object valueOf(String text)
{
ELParser parser = new ELParser(getELContext(), text);
parser.setCheckEscape(true);
Expr expr = parser.parse();
return expr;
}
/**
* Returns the variable resolver.
*/
public ConfigELContext getELContext()
{
return ConfigELContext.EL_CONTEXT;
}
}