/*
Derby - Class org.apache.derby.impl.sql.execute.InsertConstantAction
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.derby.impl.sql.execute;
import org.apache.derby.iapi.services.stream.HeaderPrintWriter;
import org.apache.derby.iapi.services.io.ArrayUtil;
import org.apache.derby.iapi.services.io.StoredFormatIds;
import org.apache.derby.iapi.services.io.FormatIdUtil;
import org.apache.derby.iapi.services.context.ContextManager;
import org.apache.derby.iapi.sql.dictionary.IndexRowGenerator;
import org.apache.derby.iapi.sql.dictionary.DataDictionary;
import org.apache.derby.iapi.sql.dictionary.TableDescriptor;
import org.apache.derby.iapi.sql.conn.LanguageConnectionContext;
import org.apache.derby.iapi.sql.execute.ConstantAction;
import org.apache.derby.iapi.sql.execute.ExecRow;
import org.apache.derby.iapi.error.StandardException;
import org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo;
import org.apache.derby.iapi.types.RowLocation;
import org.apache.derby.catalog.UUID;
import java.io.ObjectOutput;
import java.io.ObjectInput;
import java.io.IOException;
import java.util.Properties;
/**
* This class describes compiled constants that are passed into
* InsertResultSets.
*
*/
public class InsertConstantAction extends WriteCursorConstantAction
{
/********************************************************
**
** This class implements Formatable. But it is NOT used
** across either major or minor releases. It is only
** written persistently in stored prepared statements,
** not in the replication stage. SO, IT IS OK TO CHANGE
** ITS read/writeExternal.
**
********************************************************/
/* Which (0-based) columns are indexed */
boolean[] indexedCols;
/* These variables are needed to support Autoincrement-- after an insert
* we need to remember the last autoincrement value inserted into the
* table and the user could do a search based on schema,table,columnname
*/
private String schemaName;
private String tableName;
private String columnNames[];
/**
* An array of row location objects (0 based), one for each
* column in the table. If the column is an
* autoincrement table then the array points to
* the row location of the column in SYSCOLUMNS.
* if not, then it contains null.
*/
RowLocation[] autoincRowLocation;
private long[] autoincIncrement;
/** Position of autogenerated column */
private transient int firstAutoGenColumn = -1;
final public boolean hasDeferrableChecks;
String identitySequenceUUIDString;
// CONSTRUCTORS
/**
* Public niladic constructor. Needed for Formatable interface to work.
*
*/
public InsertConstantAction() {
super();
hasDeferrableChecks = false;
}
/**
* Make the ConstantAction for an INSERT statement.
*
* @param tableDescriptor
* @param conglomId Conglomerate ID.
* @param heapSCOCI StaticCompiledOpenConglomInfo for heap.
* @param irgs Index descriptors
* @param indexCIDS Conglomerate IDs of indices
* @param indexSCOCIs StaticCompiledOpenConglomInfos for indexes.
* @param indexNames Names of indices on this table for error reporting.
* @param deferred True means process as a deferred insert.
* @param hasDeferrableChecks
* The target table has deferrable CHECK constraints
* @param targetProperties Properties on the target table.
* @param targetUUID UUID of target table
* @param lockMode The lockMode to use on the target table
* @param fkInfo Array of structures containing foreign key info,
* if any (may be null)
* @param triggerInfo Array of structures containing trigger info,
* if any (may be null)
* @param streamStorableHeapColIds Null for non rep. (0 based)
* @param indexedCols boolean[] of which (0-based) columns are indexed.
* @param singleRowSource Whether or not source is a single row source
* @param autoincRowLocation Array of rowlocations of autoincrement values
* in SYSCOLUMNS for each ai column.
* @param underMerge True if this is an action of a MERGE statement.
* @param identitySequenceUUIDString For 10.11 and higher, the handle on the sequence for the identity column
*/
InsertConstantAction(TableDescriptor tableDescriptor,
long conglomId,
StaticCompiledOpenConglomInfo heapSCOCI,
IndexRowGenerator[] irgs,
long[] indexCIDS,
StaticCompiledOpenConglomInfo[] indexSCOCIs,
String[] indexNames,
boolean deferred,
boolean hasDeferrableChecks,
Properties targetProperties,
UUID targetUUID,
int lockMode,
FKInfo[] fkInfo,
TriggerInfo triggerInfo,
int[] streamStorableHeapColIds,
boolean[] indexedCols,
boolean singleRowSource,
RowLocation[] autoincRowLocation,
boolean underMerge,
String identitySequenceUUIDString)
{
super(conglomId,
heapSCOCI,
irgs,
indexCIDS,
indexSCOCIs,
indexNames,
deferred,
targetProperties,
targetUUID,
lockMode,
fkInfo,
triggerInfo,
null,
null,
streamStorableHeapColIds,
singleRowSource,
underMerge
);
this.indexedCols = indexedCols;
this.autoincRowLocation = autoincRowLocation;
this.schemaName = tableDescriptor.getSchemaName();
this.tableName = tableDescriptor.getName();
this.columnNames = tableDescriptor.getColumnNamesArray();
this.autoincIncrement = tableDescriptor.getAutoincIncrementArray();
this.indexNames = indexNames;
this.hasDeferrableChecks = hasDeferrableChecks;
this.identitySequenceUUIDString = identitySequenceUUIDString;
}
// INTERFACE METHODS
// Formatable methods
public void readExternal (ObjectInput in)
throws IOException, ClassNotFoundException
{
Object[] objectArray = null;
super.readExternal(in);
indexedCols = ArrayUtil.readBooleanArray(in);
// RESOLVEAUTOINCREMENT: this is the new stuff-- probably version!!
objectArray = ArrayUtil.readObjectArray(in);
if (objectArray != null)
{
// is there a better way to do cast the whole array?
autoincRowLocation = new RowLocation[objectArray.length];
for (int i = 0; i < objectArray.length; i++)
autoincRowLocation[i] = (RowLocation)objectArray[i];
}
schemaName = (String)in.readObject();
tableName = (String)in.readObject();
objectArray = ArrayUtil.readObjectArray(in);
if (objectArray != null)
{
// is there a better way to do cast the whole array?
columnNames = new String[objectArray.length];
for (int i = 0; i < objectArray.length; i++)
columnNames[i] = (String)objectArray[i];
}
autoincIncrement = ArrayUtil.readLongArray(in);
identitySequenceUUIDString = (String) in.readObject();
}
/**
* Write this object to a stream of stored objects.
*
* @param out write bytes here.
*
* @exception IOException thrown on error
*/
public void writeExternal( ObjectOutput out )
throws IOException
{
super.writeExternal(out);
ArrayUtil.writeBooleanArray(out, indexedCols);
ArrayUtil.writeArray(out, autoincRowLocation);
out.writeObject(schemaName);
out.writeObject(tableName);
ArrayUtil.writeArray(out, columnNames);
ArrayUtil.writeLongArray(out, autoincIncrement);
out.writeObject( identitySequenceUUIDString );
}
/** Get the 0-based position of the autogenerated column */
public int getAutoGenColumn()
{
if ( !hasAutoincrement() ) { return -1; }
if ( firstAutoGenColumn < 0 )
{
for ( int i = 0; i < autoincIncrement.length; i++ )
{
if ( autoincIncrement[ i ] > 0 )
{
firstAutoGenColumn = i;
break;
}
}
}
return firstAutoGenColumn;
}
/**
* Gets the name of the schema that the table is in
*
* @return schema name
*/
public String getSchemaName() { return schemaName; }
/**
* Gets the name of the table being inserted into
*
* @return name of table being inserted into
*/
public String getTableName() { return tableName; }
/**
* gets the name of the desired column in the taget table.
*
* @param i the column number
*/
public String getColumnName(int i) { return columnNames[i]; }
/**
* gets the increment value for a column.
*
* @param i the column number
*/
public long getAutoincIncrement(int i) { return autoincIncrement[i]; }
/**
* Does the target table has autoincrement columns.
*
* @return True if the table has ai columns
*/
public boolean hasAutoincrement()
{
return (autoincRowLocation != null);
}
/**
* gets the row location
*/
RowLocation[] getAutoincRowLocation()
{
return autoincRowLocation;
}
/**
* Get the formatID which corresponds to this class.
*
* @return the formatID of this class
*/
public int getTypeFormatId() { return StoredFormatIds.INSERT_CONSTANT_ACTION_V01_ID; }
// CLASS METHODS
}
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