Mega Code Archive
RowSet Model based on TableModel (JTable)
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/*
Database Programming with JDBC and Java, Second Edition
By George Reese
ISBN: 1-56592-616-1
Publisher: O'Reilly
*/
/* $Id: RowSetModel.java,v 1.1 1999/03/03 06:00:22 borg Exp $ */
/* Copyright 1999 George Reese, All Rights Reserved */
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Types;
import javax.sql.RowSet;
import javax.sql.RowSetEvent;
import javax.sql.RowSetListener;
import javax.swing.table.AbstractTableModel;
public class RowSetModel extends AbstractTableModel implements RowSetListener {
private RowSet rowSet = null;
public RowSetModel(RowSet set) {
super();
rowSet = set;
rowSet.addRowSetListener(this);
}
public void cursorMoved(RowSetEvent event) {
}
public Class getColumnClass(int column) {
String cname;
int type;
try {
ResultSetMetaData meta = rowSet.getMetaData();
if (meta == null) {
return null;
}
type = meta.getColumnType(column + 1);
} catch (SQLException e) {
e.printStackTrace();
return super.getColumnClass(column);
}
switch (type) {
case Types.BIT: {
cname = "java.lang.Boolean";
break;
}
case Types.TINYINT: {
cname = "java.lang.Byte";
break;
}
case Types.SMALLINT: {
cname = "java.lang.Short";
break;
}
case Types.INTEGER: {
cname = "java.lang.Integer";
break;
}
case Types.BIGINT: {
cname = "java.lang.Long";
break;
}
case Types.FLOAT:
case Types.REAL: {
cname = "java.lang.Float";
break;
}
case Types.DOUBLE: {
cname = "java.lang.Double";
break;
}
case Types.NUMERIC: {
cname = "java.lang.Number";
break;
}
case Types.DECIMAL: {
cname = "java.math.BigDecimal";
break;
}
case Types.CHAR:
case Types.VARCHAR:
case Types.LONGVARCHAR: {
cname = "java.lang.String";
break;
}
case Types.DATE: {
cname = "java.sql.Date";
break;
}
case Types.TIME: {
cname = "java.sql.Time";
break;
}
case Types.TIMESTAMP: {
cname = "java.sql.Timestamp";
break;
}
case Types.BINARY:
case Types.VARBINARY:
case Types.LONGVARBINARY: {
cname = "byte[]";
break;
}
case Types.OTHER:
case Types.JAVA_OBJECT: {
cname = "java.lang.Object";
break;
}
case Types.CLOB: {
cname = "java.sql.Clob";
break;
}
case Types.BLOB: {
cname = "java.ssql.Blob";
break;
}
case Types.REF: {
cname = "java.sql.Ref";
break;
}
case Types.STRUCT: {
cname = "java.sql.Struct";
break;
}
default: {
return super.getColumnClass(column);
}
}
try {
return Class.forName(cname);
} catch (Exception e) {
e.printStackTrace();
return super.getColumnClass(column);
}
}
public int getColumnCount() {
try {
ResultSetMetaData meta = rowSet.getMetaData();
if (meta == null) {
return 0;
}
return meta.getColumnCount();
} catch (SQLException e) {
return 0;
}
}
public String getColumnName(int col) {
try {
ResultSetMetaData meta = rowSet.getMetaData();
if (meta == null) {
return null;
}
return meta.getColumnName(col + 1);
} catch (SQLException e) {
return "Error";
}
}
public int getRowCount() {
try {
if (rowSet.last()) {
return (rowSet.getRow());
} else {
return 0;
}
} catch (SQLException e) {
return 0;
}
}
public Object getValueAt(int row, int col) {
try {
if (!rowSet.absolute(row + 1)) {
return null;
}
return rowSet.getObject(col + 1);
} catch (SQLException e) {
return null;
}
}
public void rowChanged(RowSetEvent event) {
try {
int row = rowSet.getRow();
if (rowSet.rowDeleted()) {
fireTableRowsDeleted(row, row);
} else if (rowSet.rowInserted()) {
fireTableRowsInserted(row, row);
} else if (rowSet.rowUpdated()) {
fireTableRowsUpdated(row, row);
}
} catch (SQLException e) {
}
}
public void rowSetChanged(RowSetEvent event) {
fireTableStructureChanged();
}
public void setValueAt(Object value, int row, int column) {
try {
if (!rowSet.absolute(row + 1)) {
return;
}
rowSet.updateObject(column + 1, value);
} catch (SQLException e) {
}
}
}
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