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CmdInformationSingle.java
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CmdInformationSingle.java
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/*
*
* MariaDB Client for Java
*
* Copyright (c) 2012-2014 Monty Program Ab.
* Copyright (c) 2015-2017 MariaDB Ab.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, write to Monty Program Ab info@montyprogram.com.
*
* This particular MariaDB Client for Java file is work
* derived from a Drizzle-JDBC. Drizzle-JDBC file which is covered by subject to
* the following copyright and notice provisions:
*
* Copyright (c) 2009-2011, Marcus Eriksson
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither the name of the driver nor the names of its contributors may not be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
package org.mariadb.jdbc.internal.com.read.dao;
import org.mariadb.jdbc.internal.com.read.resultset.SelectResultSet;
import org.mariadb.jdbc.internal.protocol.Protocol;
import java.sql.ResultSet;
public class CmdInformationSingle implements CmdInformation {
private final long insertId;
private long updateCount;
private final int autoIncrement;
/**
* Object containing update / insert ids, optimized for only one result.
*
* @param insertId auto generated id.
* @param updateCount update count
* @param autoIncrement connection auto increment value.
*/
public CmdInformationSingle(long insertId, long updateCount, int autoIncrement) {
this.insertId = insertId;
this.updateCount = updateCount;
this.autoIncrement = autoIncrement;
}
@Override
public int[] getUpdateCounts() {
return new int[]{(int) updateCount};
}
@Override
public long[] getLargeUpdateCounts() {
return new long[]{updateCount};
}
@Override
public int getUpdateCount() {
return (int) updateCount;
}
@Override
public long getLargeUpdateCount() {
return updateCount;
}
@Override
public void addErrorStat() {
//not expected
}
@Override
public void reset() {
//not expected
}
@Override
public void addResultSetStat() {
//not expected
}
/**
* Get generated Keys.
*
* @param protocol current protocol
* @return a resultSet containing the single insert ids.
*/
public ResultSet getGeneratedKeys(Protocol protocol) {
if (insertId == 0) {
return SelectResultSet.createEmptyResultSet();
}
if (updateCount > 1) {
long[] insertIds = new long[(int) updateCount];
for (int i = 0; i < updateCount; i++) {
insertIds[i] = insertId + i * autoIncrement;
}
return SelectResultSet.createGeneratedData(insertIds, protocol, true);
}
return SelectResultSet.createGeneratedData(new long[]{insertId}, protocol, true);
}
@Override
public ResultSet getBatchGeneratedKeys(Protocol protocol) {
return getGeneratedKeys(protocol);
}
public int getCurrentStatNumber() {
return 1;
}
@Override
public boolean moreResults() {
updateCount = RESULT_SET_VALUE;
return false;
}
public boolean isCurrentUpdateCount() {
return updateCount != RESULT_SET_VALUE;
}
@Override
public void addSuccessStat(long updateCount, long insertId) {
//cannot occur
}
public void setRewrite(boolean rewritten) {
//no need
}
}