org.nd4j.linalg.indexing.conditions.ConditionBuilder Maven / Gradle / Ivy
/*-
*
* * Copyright 2015 Skymind,Inc.
* *
* * 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.nd4j.linalg.indexing.conditions;
import org.nd4j.linalg.util.ArrayUtil;
/**
* Mini dsl for building conditions
*
* @author Adam Gibson
*/
public class ConditionBuilder {
private Condition soFar;
public ConditionBuilder or(Condition... conditions) {
if (soFar == null)
soFar = new Or(conditions);
else {
soFar = new Or(ArrayUtil.combine(conditions, new Condition[] {soFar}));
}
return this;
}
public ConditionBuilder and(Condition... conditions) {
if (soFar == null)
soFar = new And(conditions);
else {
soFar = new And(ArrayUtil.combine(conditions, new Condition[] {soFar}));
}
return this;
}
public ConditionBuilder eq(Condition... conditions) {
if (soFar == null)
soFar = new ConditionEquals(conditions);
else {
soFar = new ConditionEquals(ArrayUtil.combine(conditions, new Condition[] {soFar}));
}
return this;
}
public ConditionBuilder not() {
if (soFar == null)
throw new IllegalStateException("No condition to take the opposite of");
soFar = new Not(soFar);
return this;
}
public Condition build() {
return soFar;
}
}