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Core services for Usergrid system.
/*******************************************************************************
* Copyright 2012 Apigee Corporation
*
* 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 org.usergrid.persistence.query.tree;
import java.util.UUID;
/**
* Simple factory for generating literal instance based on the runtime value
* @author tnine
*
*/
public class LiteralFactory {
/**
* Generate the correct literal subclass based on the runtime instance.
* @param value
* @return
*/
public static final Literal getLiteral(Object value){
if(value instanceof Integer){
return new LongLiteral((Integer)value);
}
if(value instanceof Long){
return new LongLiteral((Long)value);
}
if(value instanceof String){
return new StringLiteral((String) value);
}
if(value instanceof Float){
return new FloatLiteral((Float)value);
}
if(value instanceof UUID){
return new UUIDLiteral((UUID)value);
}
if(value instanceof Boolean){
return new BooleanLiteral((Boolean)value);
}
throw new UnsupportedOperationException(String.format("Unsupported type of %s was passed when trying to construct a literal", value.getClass()));
}
}