/*
* Copyright 2012 - 2017 the original author or authors.
*
* 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 org.springframework.data.solr.core.query;
import java.util.Collections;
import org.springframework.util.Assert;
/**
* Implementation of {@code not(field|function)}
*
* @author Christoph Strobl
* @since 1.1
*/
public class NotFunction extends AbstractFunction {
private static final String OPERATION = "not";
private NotFunction(Object condition) {
super(Collections.singletonList(condition));
}
/**
* @param field must not be null
* @return
*/
public static NotFunction not(Field field) {
Assert.notNull(field, "Field for not function must not be 'null'");
return not(field.getName());
}
/**
* @param fieldname must not be empty
* @return
*/
public static NotFunction not(String fieldname) {
Assert.hasText(fieldname, "Fieldname for not function must not be 'empty'.");
return new NotFunction(fieldname);
}
/**
* @param condition must not be null
* @return
*/
public static NotFunction not(Function condition) {
Assert.notNull(condition, "Condition for not function must not be 'null'");
return new NotFunction(condition);
}
@Override
public String getOperation() {
return OPERATION;
}
}