package org.hibernate.hql.ast.tree;
import org.hibernate.type.Type;
import org.hibernate.type.BooleanType;
import org.hibernate.Hibernate;
import org.hibernate.QueryException;
import org.hibernate.engine.SessionFactoryImplementor;
/**
* Represents a boolean literal within a query.
*
* @author Steve Ebersole
*/
public class BooleanLiteralNode extends LiteralNode implements ExpectedTypeAwareNode {
private Type expectedType;
public Type getDataType() {
return expectedType == null ? Hibernate.BOOLEAN : expectedType;
}
public BooleanType getTypeInternal() {
return ( BooleanType ) getDataType();
}
public Boolean getValue() {
return getType() == TRUE ? Boolean.TRUE : Boolean.FALSE;
}
/**
* Expected-types really only pertinent here for boolean literals...
*
* @param expectedType
*/
public void setExpectedType(Type expectedType) {
this.expectedType = expectedType;
}
public Type getExpectedType() {
return expectedType;
}
public String getRenderText(SessionFactoryImplementor sessionFactory) {
try {
return getTypeInternal().objectToSQLString( getValue(), sessionFactory.getDialect() );
}
catch( Throwable t ) {
throw new QueryException( "Unable to render boolean literal value", t );
}
}
}
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