com.goldencode.p2j.persist

Class TableResultSet.DataHandler

java.lang.Object

com.goldencode.p2j.persist.TableResultSet.DataHandler

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

Enclosing class:

TableResultSet

private final class TableResultSet.DataHandler
extends java.lang.Object
implements java.lang.reflect.InvocationHandler

Handler for the ResultSet proxy. This will provide the data in a forward-only manner.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Object[]	data The data for the current row.
private java.util.Iterator<java.lang.Object[]>	iter An iterator over the data.
private java.util.List<PropertyDefinition>	props The list of properties.
private java.sql.ResultSetMetaData	rsmd The ResultSetMetaData proxy.
private boolean	wasNull Flag indicating if the last retrieved column was SQL-null.

Constructor Summary

Constructors

Constructor and Description
DataHandler() Create a new instance.

Method Summary

Modifier and Type	Method and Description
private int	getPropertyIndex(java.lang.String name) Get the 1-based index for the property with the specified name.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Handler for the ResultSet APIs.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

rsmd

private java.sql.ResultSetMetaData rsmd

The ResultSetMetaData proxy.

props

private java.util.List<PropertyDefinition> props

The list of properties.

iter

private java.util.Iterator<java.lang.Object[]> iter

An iterator over the data.

wasNull

private boolean wasNull

Flag indicating if the last retrieved column was SQL-null.

data

private java.lang.Object[] data

The data for the current row.

Constructor Detail

DataHandler

public DataHandler()

Create a new instance. This initializes the iterator, builds the property list and the metadata.

Method Detail

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Handler for the ResultSet APIs. Only the following are supported:

• ResultSet.next()
• ResultSet.close()
• ResultSet.isClosed()
• ResultSet.wasNull()
• ResultSet.findColumn(java.lang.String)
• ResultSet.relative(int)
• ResultSet.getType()
• ResultSet.getMetaData()
• ResultSet.getObject(int)
• ResultSet.getBoolean(int)
• ResultSet.getDouble(int)
• ResultSet.getBigDecimal(int, int)
• ResultSet.getFloat(int)
• ResultSet.getInt(int)
• ResultSet.getLong(int)
• ResultSet.getShort(int)
• ResultSet.getByte(int)
• ResultSet.getString(int)
• ResultSet.getDate(int)
• ResultSet.getTime(int)
• ResultSet.getTimestamp(int)

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Throws:

java.lang.Throwable

getPropertyIndex

private int getPropertyIndex(java.lang.String name)
                      throws java.sql.SQLException

Get the 1-based index for the property with the specified name. Search is done case-insensitive. If not found, an SQLException is throw.

Parameters:

name - The property name.

Returns:

The 1-based index in the property list.

Throws:

java.sql.SQLException - If the property was not found.