org.apache.hadoop.hive.ql.plan.DropTableDesc 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.hadoop.hive.ql.plan;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* DropTableDesc.
* TODO: this is currently used for both drop table and drop partitions.
*/
@Explain(displayName = "Drop Table")
public class DropTableDesc extends DDLDesc implements Serializable {
private static final long serialVersionUID = 1L;
public static class PartSpec {
public PartSpec(ExprNodeGenericFuncDesc partSpec, int prefixLength) {
this.partSpec = partSpec;
this.prefixLength = prefixLength;
}
public ExprNodeGenericFuncDesc getPartSpec() {
return partSpec;
}
public int getPrefixLength() {
return prefixLength;
}
private static final long serialVersionUID = 1L;
private ExprNodeGenericFuncDesc partSpec;
// TODO: see if we can get rid of this... used in one place to distinguish archived parts
private int prefixLength;
}
String tableName;
ArrayList partSpecs;
boolean expectView;
boolean ifExists;
boolean ifPurge;
boolean ignoreProtection;
public DropTableDesc() {
}
/**
* @param tableName
* @param ifPurge
*/
public DropTableDesc(String tableName, boolean expectView, boolean ifExists, boolean ifPurge) {
this.tableName = tableName;
this.partSpecs = null;
this.expectView = expectView;
this.ifExists = ifExists;
this.ifPurge = ifPurge;
this.ignoreProtection = false;
}
public DropTableDesc(String tableName, Map> partSpecs,
boolean expectView, boolean ignoreProtection) {
this.tableName = tableName;
this.partSpecs = new ArrayList(partSpecs.size());
for (Map.Entry> partSpec : partSpecs.entrySet()) {
int prefixLength = partSpec.getKey();
for (ExprNodeGenericFuncDesc expr : partSpec.getValue()) {
this.partSpecs.add(new PartSpec(expr, prefixLength));
}
}
this.ignoreProtection = ignoreProtection;
this.expectView = expectView;
}
/**
* @return the tableName
*/
@Explain(displayName = "table")
public String getTableName() {
return tableName;
}
/**
* @param tableName
* the tableName to set
*/
public void setTableName(String tableName) {
this.tableName = tableName;
}
/**
* @return the partSpecs
*/
public ArrayList getPartSpecs() {
return partSpecs;
}
/**
* @return whether or not protection will be ignored for the partition
*/
public boolean getIgnoreProtection() {
return ignoreProtection;
}
/**
* @param ignoreProtection
* set whether or not protection will be ignored for the partition
*/
public void setIgnoreProtection(boolean ignoreProtection) {
this.ignoreProtection = ignoreProtection;
}
/**
* @return whether to expect a view being dropped
*/
public boolean getExpectView() {
return expectView;
}
/**
* @param expectView
* set whether to expect a view being dropped
*/
public void setExpectView(boolean expectView) {
this.expectView = expectView;
}
/**
* @return whether IF EXISTS was specified
*/
public boolean getIfExists() {
return ifExists;
}
/**
* @param ifExists
* set whether IF EXISTS was specified
*/
public void setIfExists(boolean ifExists) {
this.ifExists = ifExists;
}
/**
* @return whether Purge was specified
*/
public boolean getIfPurge() {
return ifPurge;
}
/**
* @param ifPurge
* set whether Purge was specified
*/
public void setIfPurge(boolean ifPurge) {
this.ifPurge = ifPurge;
}
}