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/*
* 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.drill.exec.physical.base;
import java.util.List;
import org.apache.drill.common.expression.FieldReference;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.common.logical.StoragePluginConfig;
import org.apache.calcite.rel.RelNode;
import org.apache.drill.exec.planner.index.IndexCollection;
import org.apache.drill.exec.planner.cost.PluginCost;
import org.apache.drill.exec.planner.physical.PartitionFunction;
import org.apache.drill.exec.store.AbstractStoragePlugin;
public abstract class AbstractDbGroupScan extends AbstractGroupScan implements DbGroupScan {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(AbstractDbGroupScan.class);
private static final String ROW_KEY = "_id";
private static final SchemaPath ROW_KEY_PATH = SchemaPath.getSimplePath(ROW_KEY);
public AbstractDbGroupScan(String userName) {
super(userName);
}
public AbstractDbGroupScan(AbstractDbGroupScan that) {
super(that);
}
public abstract AbstractStoragePlugin getStoragePlugin();
public abstract StoragePluginConfig getStorageConfig();
@Override
public boolean supportsSecondaryIndex() {
return false;
}
@Override
public IndexCollection getSecondaryIndexCollection(RelNode scanrel) {
return null;
}
@Override
public boolean supportsRestrictedScan() {
return false;
}
@Override
public boolean isRestrictedScan() {
return false;
}
@Override
public DbGroupScan getRestrictedScan(List<SchemaPath> columns) {
return null;
}
@Override
public String getRowKeyName() {
return ROW_KEY;
}
@Override
public SchemaPath getRowKeyPath() {
return ROW_KEY_PATH;
}
@Override
public PartitionFunction getRangePartitionFunction(List<FieldReference> refList) {
throw new UnsupportedOperationException();
}
@Override
public PluginCost getPluginCostModel() {
return null;
}
}
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