/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.cdk.templatecompiler.el.types;
import java.util.Collections;
import org.richfaces.cdk.templatecompiler.builder.model.JavaImport;
/**
* @author Nick Belaevski
*
*/
public final class NullType implements ELType {
/**
* Singleton instance of {@link NullType}
*/
public static final ELType INSTANCE = new NullType();
private NullType() {
// this class is a singleton, thus has private ctor
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#getCode()
*/
@Override
public String getCode() {
throw new UnsupportedOperationException();
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#getImportsIterator()
*/
@Override
public Iterable<JavaImport> getRequiredImports() {
return Collections.emptyList();
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#isNullType()
*/
@Override
public boolean isNullType() {
return true;
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#getRawType()
*/
@Override
public ELType getRawType() {
return TypesFactory.OBJECT_TYPE;
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#getTypeArguments()
*/
@Override
public ELType[] getTypeArguments() {
return PlainClassType.NO_TYPES;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "null";
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#getContainerType()
*/
@Override
public ELType getContainerType() {
return this;
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#isArray()
*/
@Override
public boolean isArray() {
return false;
}
/*
* (non-Javadoc)
*
* @see org.richfaces.cdk.templatecompiler.el.ELType#isAssignableFrom(org.richfaces.cdk.templatecompiler.el.ELType)
*/
@Override
public boolean isAssignableFrom(ELType anotherType) {
return true;
}
@Override
public String getRawName() {
return "null";
}
@Override
public boolean isPrimitive() {
return false;
}
}