nz.co.gregs.dbvolution.results.NumberResult Maven / Gradle / Ivy
/*
* Copyright 2013 Gregory Graham.
*
* 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 nz.co.gregs.dbvolution.results;
import nz.co.gregs.dbvolution.expressions.DBExpression;
/**
* Interface required to be implemented by all DBExpressions that produce Number
* results
*
*
* DBvolution attempts to maintain type safety using the *Result interfaces.
* Most operations requiring a number will not accept anything other than an
* actual number or a NumberResult.
*
*
* Add {@code implements NumberResult} to your class and override the copy
* method so that it returns your class type.
*
*
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*
* @author greg
* @see DBExpression
*/
public interface NumberResult extends SimpleNumericResult {
@Override
public NumberResult copy();
}