mdbtools.dbengine

Class MemoryData

java.lang.Object

mdbtools.dbengine.MemoryData

All Implemented Interfaces:

Data

Direct Known Subclasses:

RewindableData

public class MemoryData
extends Object
implements Data

An implementation of Data that stores the complete result in memory

Field Summary

Fields

Modifier and Type	Field and Description
protected int	currentRow

Constructor Summary

Constructors

Constructor and Description
MemoryData()
MemoryData(Data data, int numColumns)

Method Summary

Methods

Modifier and Type	Method and Description
void	addRow(Object[] row) Add a row of data
void	dump()
Object	get(int index) get the data at a certain column
Object[]	getRow(int index)
boolean	next() goto the next (or first) row
void	sort(int[] sortBy, boolean[] ascending) sort the data set by the given columns each column is sorted seperate

Methods inherited from class java.lang.Object

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

Field Detail

currentRow

protected int currentRow

Constructor Detail

MemoryData

public MemoryData()

MemoryData

public MemoryData(Data data,
          int numColumns)
           throws SQLException

Throws:

SQLException

Method Detail

next

public boolean next()
             throws SQLException

goto the next (or first) row

Specified by:

next in interface Data

Returns:

true if row exits, false if not

Throws:

SQLException

get

public Object get(int index)

get the data at a certain column

Specified by:

get in interface Data

Parameters:

index - the column to get

getRow

public Object[] getRow(int index)

addRow

public void addRow(Object[] row)

Add a row of data

sort

public void sort(int[] sortBy,
        boolean[] ascending)
          throws SQLException

sort the data set by the given columns each column is sorted seperate

Throws:

SQLException

dump

public void dump()