/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tinkerpop.gremlin.process.traversal.step;
import org.apache.tinkerpop.gremlin.process.traversal.Traversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
/**
* FromToModulating are for {@link org.apache.tinkerpop.gremlin.process.traversal.Step}s that support from()- and to()-modulation.
* This step is similar to {@link ByModulating}.
*
* @author Marko A. Rodriguez (http://markorodriguez.com)
*/
public interface FromToModulating {
public default void addFrom(final Traversal.Admin<?, ?> fromTraversal) {
throw new UnsupportedOperationException("The from()-modulating step does not support traversal-based modulation: " + this);
}
public default void addTo(final Traversal.Admin<?, ?> toTraversal) {
throw new UnsupportedOperationException("The to()-modulating step does not support traversal-based modulation: " + this);
}
public default void addFrom(final String fromLabel) {
addFrom(__.select(fromLabel).asAdmin());
}
public default void addTo(final String toLabel) {
addTo(__.select(toLabel).asAdmin());
}
}