org.apache.flink.runtime.state.VoidNamespaceTypeInfo Maven / Gradle / Ivy
/*
* 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.flink.runtime.state;
import org.apache.flink.annotation.Public;
import org.apache.flink.annotation.PublicEvolving;
import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.api.common.typeutils.TypeSerializer;
/**
* {@link TypeInformation} for {@link VoidNamespace}.
*/
@Public
public class VoidNamespaceTypeInfo extends TypeInformation {
private static final long serialVersionUID = 5453679706408610586L;
public static final VoidNamespaceTypeInfo INSTANCE = new VoidNamespaceTypeInfo();
@Override
@PublicEvolving
public boolean isBasicType() {
return false;
}
@Override
@PublicEvolving
public boolean isTupleType() {
return false;
}
@Override
@PublicEvolving
public int getArity() {
return 0;
}
@Override
@PublicEvolving
public int getTotalFields() {
return 1;
}
@Override
@PublicEvolving
public Class getTypeClass() {
return VoidNamespace.class;
}
@Override
@PublicEvolving
public boolean isKeyType() {
return false;
}
@Override
@PublicEvolving
public TypeSerializer createSerializer(ExecutionConfig config) {
return VoidNamespaceSerializer.INSTANCE;
}
@Override
@PublicEvolving
public String toString() {
return "VoidNamespaceTypeInfo";
}
@Override
@PublicEvolving
public boolean equals(Object obj) {
return this == obj || obj instanceof VoidNamespaceTypeInfo;
}
@Override
@PublicEvolving
public int hashCode() {
return 0;
}
@Override
@PublicEvolving
public boolean canEqual(Object obj) {
return obj instanceof VoidNamespaceTypeInfo;
}
}