/*
* Copyright (c) 2013-2015 Josef Hardi <josef.hardi@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.obidea.semantika.expression.base;
import com.obidea.semantika.exception.IllegalOperationException;
public abstract class AbstractConstant extends Term implements IConstant
{
private static final long serialVersionUID = 629451L;
private String mValue = "";
public AbstractConstant(final String value, final String datatype)
{
super(null, datatype);
mValue = value;
}
@Override
public String getName()
{
throw new IllegalOperationException("Operation is not supported"); //$NON-NLS-1$
}
@Override
public String getLexicalValue()
{
return mValue;
}
@Override
public String toString()
{
return getLexicalValue();
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + getLexicalValue().hashCode();
result = prime * result + getDatatype().hashCode();
return result;
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (obj instanceof AbstractConstant) {
final AbstractConstant other = (AbstractConstant) obj;
return getLexicalValue().equals(other.getLexicalValue()) && getDatatype().equals(other.getDatatype());
}
return false;
}
}