/*
* 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 http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.query.sqm.tree.expression;
import org.hibernate.query.sqm.consume.spi.SemanticQueryWalker;
import org.hibernate.query.sqm.domain.type.SqmDomainType;
import org.hibernate.query.sqm.domain.SqmExpressableType;
/**
* @author Steve Ebersole
*/
public class PositionalParameterSqmExpression implements ParameterSqmExpression {
private final int position;
private final boolean canBeMultiValued;
private SqmExpressableType expressableType;
public PositionalParameterSqmExpression(int position, boolean canBeMultiValued) {
this.position = position;
this.canBeMultiValued = canBeMultiValued;
}
public PositionalParameterSqmExpression(int position, boolean canBeMultiValued, SqmExpressableType expressableType) {
this.position = position;
this.canBeMultiValued = canBeMultiValued;
this.expressableType = expressableType;
}
@Override
public SqmExpressableType getExpressionType() {
return expressableType;
}
@Override
public SqmExpressableType getInferableType() {
return getExpressionType();
}
@Override
public <T> T accept(SemanticQueryWalker<T> walker) {
return walker.visitPositionalParameterExpression( this );
}
@Override
public String asLoggableText() {
return "?" + getPosition();
}
@Override
public String getName() {
return null;
}
@Override
public Integer getPosition() {
return position;
}
@Override
public void impliedType(SqmExpressableType expressableType) {
if ( expressableType != null ) {
this.expressableType = expressableType;
}
}
@Override
public boolean allowMultiValuedBinding() {
return canBeMultiValued;
}
@Override
public SqmExpressableType getAnticipatedType() {
return getExpressionType();
}
@Override
public SqmDomainType getExportedDomainType() {
return getExpressionType().getExportedDomainType();
}
}