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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.hql.internal.ast.tree;
import org.hibernate.type.Type;
import antlr.SemanticException;
/**
* Contract for nodes representing operators (logic or arithmetic).
*
* @author Steve Ebersole
*/
public interface OperatorNode {
/**
* Called by the tree walker during hql-sql semantic analysis
* after the operator sub-tree is completely built.
*/
public abstract void initialize() throws SemanticException;
/**
* Retrieves the data type for the overall operator expression.
*
* @return The expression's data type.
*/
public Type getDataType();
}