// $Id: PositionalParameterSpecification.java 8513 2005-11-02 18:47:40Z steveebersole $
package org.hibernate.param;
import org.hibernate.engine.QueryParameters;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.type.Type;
import java.sql.PreparedStatement;
import java.sql.SQLException;
/**
* Relates to an explicit query positional (or ordinal) parameter.
*
* @author Steve Ebersole
*/
public class PositionalParameterSpecification extends AbstractExplicitParameterSpecification implements ParameterSpecification {
private final int hqlPosition;
public PositionalParameterSpecification(int sourceLine, int sourceColumn, int hqlPosition) {
super( sourceLine, sourceColumn );
this.hqlPosition = hqlPosition;
}
/**
* Bind the appropriate value into the given statement at the specified position.
*
* @param statement The statement into which the value should be bound.
* @param qp The defined values for the current query execution.
* @param session The session against which the current execution is occuring.
* @param position The position from which to start binding value(s).
*
* @return The number of sql bind positions "eaten" by this bind operation.
*/
public int bind(PreparedStatement statement, QueryParameters qp, SessionImplementor session, int position) throws SQLException {
Type type = qp.getPositionalParameterTypes()[hqlPosition];
Object value = qp.getPositionalParameterValues()[hqlPosition];
type.nullSafeSet( statement, value, position, session );
return type.getColumnSpan( session.getFactory() );
}
public String renderDisplayInfo() {
return "ordinal=" + hqlPosition + ", expectedType=" + getExpectedType();
}
public int getHqlPosition() {
return hqlPosition;
}
}
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