com.predic8.membrane.core.graphql.model.NullValue Maven / Gradle / Ivy
/* Copyright 2023 predic8 GmbH, www.predic8.com
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.predic8.membrane.core.graphql.model;
import com.predic8.membrane.core.graphql.ParsingException;
import com.predic8.membrane.core.graphql.Tokenizer;
import java.util.Objects;
public class NullValue implements Value {
public NullValue() {
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
return true;
}
@Override
public int hashCode() {
return 1;
}
@Override
public String toString() {
return "NullValue{" +
'}';
}
public void parse(Tokenizer tokenizer) throws ParsingException {
if (!tokenizer.string().equals("null"))
throw new ParsingException("Expected 'null'.", tokenizer.position());
}
}