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An open source pure Java JDBC Driver implementation which allows Java developers and JDBC client programs (e.g., Open Office, Libre Office, Squirrel SQL) to read/write Microsoft Access databases.
/*
Copyright (c) 2012 Marco Amadei.
Licensed 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 net.ucanaccess.commands;
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.List;
import net.ucanaccess.complex.Attachment;
import net.ucanaccess.complex.ComplexBase;
import net.ucanaccess.complex.SingleValue;
import net.ucanaccess.complex.Version;
import net.ucanaccess.converters.Persist2Jet;
import net.ucanaccess.jdbc.DBReference;
import net.ucanaccess.jdbc.DBReferenceSingleton;
import net.ucanaccess.jdbc.UcanaccessSQLException;
import net.ucanaccess.triggers.AutoNumberManager;
import com.healthmarketscience.jackcess.Column;
import com.healthmarketscience.jackcess.ConstraintViolationException;
import com.healthmarketscience.jackcess.DataType;
import com.healthmarketscience.jackcess.Database;
import com.healthmarketscience.jackcess.Table;
import com.healthmarketscience.jackcess.Table.ColumnOrder;
import com.healthmarketscience.jackcess.complex.ComplexValueForeignKey;
import com.healthmarketscience.jackcess.impl.ColumnImpl;
public class InsertCommand implements ICommand {
private Database dbIO;
private String execId;
private Object[] newRow;
private Table table;
private String tableName;
public InsertCommand(String _tableName, Database _dbIo, Object[] _newRow, String _execId) {
this.tableName = _tableName;
this.dbIO = _dbIo;
this.newRow = _newRow;
this.execId = _execId;
}
public InsertCommand(Table _table, Object[] _newRow, String _execId) {
this.table = _table;
this.tableName = _table.getName();
this.newRow = _newRow;
this.execId = _execId;
}
@Override
public String getExecId() {
return execId;
}
@Override
public String getTableName() {
return tableName;
}
@Override
public TYPES getType() {
return TYPES.INSERT;
}
private Object[] mementoRow() {
Object[] clone = new Object[newRow.length];
int i = 0;
for (Object obj : newRow) {
clone[i] = obj;
++i;
}
return clone;
}
private void initComplex() {
for (int i = 0; i < newRow.length; ++i) {
if (newRow[i] instanceof ComplexBase) {
newRow[i] = Column.AUTO_NUMBER;
}
}
}
public void insertRow(Table _table, Object[] _row) throws IOException {
try {
_table.addRow(newRow);
} catch (ConstraintViolationException e) {
List lc = _table.getColumns();
boolean retry = false;
for (Column cl : lc) {
if (cl.isAutoNumber()) {
retry = true;
break;
}
}
if (!retry) {
throw e;
}
Database db = _table.getDatabase();
File fl = db.getFile();
DBReferenceSingleton dbsin = DBReferenceSingleton.getInstance();
DBReference ref = dbsin.getReference(fl);
ref.reloadDbIO();
this.dbIO = ref.getDbIO();
_table = this.dbIO.getTable(this.tableName);
_table.addRow(newRow);
}
}
@Override
public IFeedbackAction persist() throws SQLException {
try {
AutoNumberAction ana = null;
if (table == null) {
table = this.dbIO.getTable(this.tableName);
}
Object[] memento = mementoRow();
initComplex();
int j = 0;
List lc = table.getColumns();
if (table.getDatabase().getColumnOrder().equals(ColumnOrder.DISPLAY)) {
Object[] newRowReorded = new Object[newRow.length];
Column[] cllReorded = new Column[newRow.length];
for (Column cli : table.getColumns()) {
newRowReorded[cli.getColumnIndex()] = newRow[j];
memento[cli.getColumnIndex()] = newRow[j];
cllReorded[cli.getColumnIndex()] = cli;
j++;
}
newRow = newRowReorded;
lc = Arrays.asList(cllReorded);
}
insertRow(table, newRow);
j = 0;
for (Column cli : lc) {
ColumnImpl cl = (ColumnImpl) cli;
if (cl.isAutoNumber() && !memento[j].equals(newRow[j])
&& !cl.getAutoNumberGenerator().getType().equals(DataType.COMPLEX_TYPE)) {
if (cl.getAutoNumberGenerator().getType().equals(DataType.LONG)) {
AutoNumberManager.reset(cl, (Integer) newRow[j]);
}
ana = new AutoNumberAction(table, memento, newRow);
}
if (cl.getType() == DataType.COMPLEX_TYPE) {
ComplexValueForeignKey rowFk = (ComplexValueForeignKey) cl.getRowValue(newRow);
if (memento[j] instanceof Attachment[]) {
Attachment[] atcs = (Attachment[]) memento[j];
for (Attachment atc : atcs) {
rowFk.addAttachment(atc.getUrl(), atc.getName(), atc.getType(), atc.getData(),
atc.getTimeStamp(), atc.getFlags());
}
} else if (memento[j] instanceof SingleValue[]) {
SingleValue[] vs = (SingleValue[]) memento[j];
for (SingleValue v : vs) {
rowFk.addMultiValue(v.getValue());
}
} else if (memento[j] instanceof Version[]) {
Version[] vs = (Version[]) memento[j];
for (Version v : vs) {
rowFk.addVersion(v.getValue(), v.getModifiedDate());
}
}
}
++j;
}
return ana;
} catch (IOException e) {
throw new UcanaccessSQLException(e);
}
}
@Override
public IFeedbackAction rollback() throws SQLException {
if (this.table != null) {
DeleteCommand dc = new DeleteCommand(this.table, new Persist2Jet().getRowPattern(this.newRow, this.table),
this.execId);
return dc.persist();
} else {
// a drop table cleans all
return null;
}
}
}