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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
/**
*
* Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
*
* 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.speedment.runtime.compute.trait;
/**
* Trait for expressions that has a {@link #sign()} method for getting the
* sign (positive, negative or zero) of the result from the current expression.
*
* @param the expression type returned by the {@link #sign()} method
*
* @author Emil Forslund
* @since 3.1.0
*/
public interface HasSign {
/**
* Creates and returns an expression that returns {@code 1} if the result of
* the this expression is positive, {@code -1} if the result of this
* expression is negative and {@code 0} if the result of this expression is
* {@code 0}.
*
* If this expression is nullable and the result was {@code null}, then the
* result of the returned expression will also be {@code null}.
*
* @return the new expression
*/
E sign();
}