/**
* The contents of this file are subject to the OpenMRS Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://license.openmrs.org
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* Copyright (C) OpenMRS, LLC. All Rights Reserved.
*/
package org.openmrs.logic.op;
/**
* An operator used within a logical expression.
*/
public interface Operator {
// comparison operators
public static final Operator CONTAINS = ComparisonOperator.CONTAINS;
public static final Operator EQUALS = ComparisonOperator.EQUALS;
public static final Operator WITHIN = ComparisonOperator.WITHIN;
public static final Operator GT = ComparisonOperator.GT;
public static final Operator GTE = ComparisonOperator.GTE;
public static final Operator LT = ComparisonOperator.LT;
public static final Operator LTE = ComparisonOperator.LTE;
public static final Operator BEFORE = ComparisonOperator.BEFORE;
public static final Operator AFTER = ComparisonOperator.AFTER;
public static final Operator IN = ComparisonOperator.IN;
// weird operator
public static final Operator ASOF = new AsOf();
// logical operators
public static final Operator AND = LogicalOperator.AND;
public static final Operator OR = LogicalOperator.OR;
public static final Operator NOT = LogicalOperator.NOT;
// transform operators
public static final Operator LAST = TransformOperator.LAST;
public static final Operator FIRST = TransformOperator.FIRST;
public static final Operator DISTINCT = TransformOperator.DISTINCT;
public static final Operator EXISTS = TransformOperator.EXISTS;
public static final Operator NOT_EXISTS = TransformOperator.NOT_EXISTS;
public static final Operator COUNT = TransformOperator.COUNT;
public static final Operator AVERAGE = TransformOperator.AVERAGE;
}