Package org.h2.index

Class VirtualTableCursor

java.lang.Object

org.h2.index.VirtualTableCursor

All Implemented Interfaces:

Cursor

class VirtualTableCursor
extends java.lang.Object
implements Cursor

A cursor for a virtual table. This implementation filters the rows (only returns entries that are larger or equal to "first", and smaller than last or equal to "last").

Field Summary

Fields

Modifier and Type	Field	Description
private SearchRow	first
private VirtualTableIndex	index
private SearchRow	last
private ResultInterface	result
(package private) Row	row
(package private) Value[]	values

Constructor Summary

Constructors

Constructor	Description
VirtualTableCursor(VirtualTableIndex index, SearchRow first, SearchRow last, ResultInterface result)

Method Summary

Modifier and Type	Method	Description
Row	get()	Get the complete current row.
SearchRow	getSearchRow()	Get the current row.
boolean	next()	Skip to the next row if one is available.
private boolean	nextImpl()	Skip to the next row if one is available.
boolean	previous()	Skip to the previous row if one is available.

Methods inherited from class java.lang.Object

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

Field Detail

index

private final VirtualTableIndex index

first

private final SearchRow first

last

private final SearchRow last

result

private final ResultInterface result

values

Value[] values

row

Row row

Constructor Detail

VirtualTableCursor

VirtualTableCursor(VirtualTableIndex index,
                   SearchRow first,
                   SearchRow last,
                   ResultInterface result)

Parameters:

index - index

first - first row

last - last row

result - the result

Method Detail

get

public Row get()

Description copied from interface: Cursor

Get the complete current row. All column are available.

Specified by:

get in interface Cursor

Returns:

the complete row

getSearchRow

public SearchRow getSearchRow()

Description copied from interface: Cursor

Get the current row. Only the data for indexed columns is available in this row.

Specified by:

getSearchRow in interface Cursor

Returns:

the search row

next

public boolean next()

Description copied from interface: Cursor

Skip to the next row if one is available.

Specified by:

next in interface Cursor

Returns:

true if another row is available

nextImpl

private boolean nextImpl()

Skip to the next row if one is available. This method does not filter.

Returns:

true if another row is available

previous

public boolean previous()

Description copied from interface: Cursor

Skip to the previous row if one is available. No filtering is made here.

Specified by:

previous in interface Cursor

Returns:

true if another row is available