| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * https://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package javax.jdo.query; |
| |
| /** |
| * Representation of an IF-THEN-ELSE expression. |
| * |
| * @param <T> Java type |
| */ |
| public interface IfThenElseExpression<T> extends ComparableExpression<T> { |
| |
| /** |
| * Method to add an "IF (...) ..." clause. If called multiple times, will add extra "IF (...) ..." |
| * or "ELSE IF (...) ..." |
| * |
| * @param cond The if expression |
| * @param thenValueExpr Expression to return when the if expression is met |
| * @return This expression |
| */ |
| IfThenElseExpression<T> ifThen(BooleanExpression cond, Expression<T> thenValueExpr); |
| |
| /** |
| * Method to add an "IF (...) ..." clause. If called multiple times, will add extra "IF (...) ..." |
| * or "ELSE IF (...) ..." |
| * |
| * @param cond The if condition |
| * @param thenValue Value to return when the if expression is met |
| * @return This expression |
| */ |
| IfThenElseExpression<T> ifThen(BooleanExpression cond, T thenValue); |
| |
| /** |
| * Method to add the "ELSE ..." clause. If called multiple times will replace the previous else |
| * clause |
| * |
| * @param elseValueExpr Expression for value to return when the if expression is not met |
| * @return This expression |
| */ |
| IfThenElseExpression<T> elseEnd(Expression<T> elseValueExpr); |
| |
| /** |
| * Method to add the "ELSE ..." clause. If called multiple times will replace the previous else |
| * clause |
| * |
| * @param elseValue Value to return when the if expression is not met |
| * @return This expression |
| */ |
| IfThenElseExpression<T> elseEnd(T elseValue); |
| } |