org.hibernate.query.criteria.internal.expression.function.FunctionExpression Maven / Gradle / Ivy

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Hibernate's core ORM functionality

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/*
 * 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.query.criteria.internal.expression.function;
import javax.persistence.criteria.Expression;

/**
 * Contract for expressions which model a SQL function call.
 *
 * @param  The type of the function result.
 *
 * @author Steve Ebersole
 */
public interface FunctionExpression extends Expression {
	/**
	 * Retrieve the name of the function.
	 *
	 * @return The function name.
	 */
	public String getFunctionName();

	/**
	 * Is this function a value aggregator (like a COUNT or MAX function e.g.)?
	 *
	 * @return True if this functions does aggregation.
	 */
	public boolean isAggregation();
}