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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.hql.internal.ast.tree;
import org.hibernate.QueryException;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.type.LiteralType;
import org.hibernate.type.StandardBasicTypes;
import org.hibernate.type.Type;
import org.hibernate.type.descriptor.converter.AttributeConverterTypeAdapter;
/**
* Represents a boolean literal within a query.
*
* @author Steve Ebersole
*/
public class BooleanLiteralNode extends LiteralNode implements ExpectedTypeAwareNode {
private Type expectedType;
public Type getDataType() {
return getExpectedType() == null ? StandardBasicTypes.BOOLEAN : getExpectedType();
}
public Boolean getValue() {
return getType() == TRUE ;
}
@Override
public void setText(String s) {
super.setText( s );
}
@Override
public void setExpectedType(Type expectedType) {
this.expectedType = expectedType;
}
@Override
public Type getExpectedType() {
return expectedType;
}
@Override
@SuppressWarnings( {"unchecked"})
public String getRenderText(SessionFactoryImplementor sessionFactory) {
final boolean literalValue = getValue();
if ( expectedType instanceof AttributeConverterTypeAdapter ) {
return determineConvertedValue( (AttributeConverterTypeAdapter) expectedType, literalValue );
}
else if ( expectedType instanceof LiteralType ) {
try {
return ( (LiteralType) expectedType ).objectToSQLString( getValue(), sessionFactory.getDialect() );
}
catch( Exception t ) {
throw new QueryException( "Unable to render boolean literal value using expected LiteralType", t );
}
}
return sessionFactory.getDialect().toBooleanValueString( literalValue );
}
}