com.healthmarketscience.jackcess.impl

Class RowIdImpl

java.lang.Object

com.healthmarketscience.jackcess.impl.RowIdImpl

All Implemented Interfaces:

RowId, Serializable, Comparable<RowId>

public class RowIdImpl
extends Object
implements RowId, Serializable

Uniquely identifies a row of data within the access database.

Author:

James Ahlborn

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RowIdImpl.Type type attributes for RowIds which simplify comparisons

Field Summary

Fields

Modifier and Type	Field and Description
static int	FIRST_PAGE_NUMBER special page number which will sort before any other valid page number
static RowIdImpl	FIRST_ROW_ID special rowId which will sort before any other valid rowId
static int	INVALID_ROW_NUMBER special row number representing an invalid row number
static int	LAST_PAGE_NUMBER special page number which will sort after any other valid page number
static RowIdImpl	LAST_ROW_ID special rowId which will sort after any other valid rowId

Constructor Summary

Constructors

Constructor and Description
RowIdImpl(int pageNumber, int rowNumber) Creates a new RowId instance.

Method Summary

Modifier and Type	Method and Description
int	compareTo(RowId other)
int	compareTo(RowIdImpl other)
boolean	equals(Object o)
int	getPageNumber()
int	getRowNumber()
RowIdImpl.Type	getType()
int	hashCode()
boolean	isValid() Returns true if this rowId potentially represents an actual row of data, false otherwise.
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

FIRST_PAGE_NUMBER

public static final int FIRST_PAGE_NUMBER

special page number which will sort before any other valid page number

See Also:

Constant Field Values

LAST_PAGE_NUMBER

public static final int LAST_PAGE_NUMBER

special page number which will sort after any other valid page number

See Also:

Constant Field Values

INVALID_ROW_NUMBER

public static final int INVALID_ROW_NUMBER

special row number representing an invalid row number

See Also:

Constant Field Values

FIRST_ROW_ID

public static final RowIdImpl FIRST_ROW_ID

special rowId which will sort before any other valid rowId

LAST_ROW_ID

public static final RowIdImpl LAST_ROW_ID

special rowId which will sort after any other valid rowId

Constructor Detail

RowIdImpl

public RowIdImpl(int pageNumber,
                 int rowNumber)

Creates a new RowId instance.

Method Detail

getPageNumber

public int getPageNumber()

getRowNumber

public int getRowNumber()

isValid

public boolean isValid()

Returns true if this rowId potentially represents an actual row of data, false otherwise.

getType

public RowIdImpl.Type getType()

compareTo

public int compareTo(RowId other)

Specified by:

compareTo in interface Comparable<RowId>

compareTo

public int compareTo(RowIdImpl other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object