com.hazelcast.org.apache.calcite.rel.mutable.MutableScan 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 com.hazelcast.org.apache.calcite.rel.mutable;
import com.hazelcast.org.apache.calcite.plan.RelOptTable;
import com.hazelcast.org.apache.calcite.rel.core.TableScan;
import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;
import java.util.List;
import java.util.Objects;
/** Mutable equivalent of {@link com.hazelcast.org.apache.calcite.rel.core.TableScan}. */
public class MutableScan extends MutableLeafRel {
private MutableScan(TableScan rel) {
super(MutableRelType.TABLE_SCAN, rel);
}
/**
* Creates a MutableScan.
*
* @param scan The underlying TableScan object
*/
public static MutableScan of(TableScan scan) {
return new MutableScan(scan);
}
private @Nullable List tableQualifiedName() {
RelOptTable table = rel.getTable();
return table == null ? null : table.getQualifiedName();
}
@Override public boolean equals(@Nullable Object obj) {
if (!(obj instanceof MutableScan)) {
return false;
}
MutableScan other = (MutableScan) obj;
return obj == this
|| Objects.equals(tableQualifiedName(), other.tableQualifiedName());
}
@Override public int hashCode() {
return Objects.hashCode(tableQualifiedName());
}
@Override public StringBuilder digest(StringBuilder buf) {
return buf.append("Scan(table: ")
.append(tableQualifiedName()).append(")");
}
@Override public MutableRel clone() {
return MutableScan.of((TableScan) rel);
}
}
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