com.blazebit.persistence.SimpleCaseWhenStarterBuilder Maven / Gradle / Ivy
/*
* Copyright 2014 - 2021 Blazebit.
*
* Licensed 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
*
* http://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 com.blazebit.persistence;
/**
* The first builder for simple case when expressions.
*
* This builder is used to enforce the correct usage of case when by disallowing an immediate call to
* {@link SimpleCaseWhenBuilder#otherwise(java.lang.String)}.
*
* @param The builder type that is returned on terminal operations
* @author Christian Beikov
* @since 1.0.0
*/
public interface SimpleCaseWhenStarterBuilder {
/**
* Adds the given when expression with the then expression to the case when builder.
*
* @param expression The when expression
* @param thenExpression The then expression
* @return This simple case when builder
*/
public SimpleCaseWhenBuilder when(String expression, String thenExpression);
// TODO: literal variants? or wait until we know the LHS type?
// TODO: subqueries?
}