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org.apache.derby.iapi.store.raw
Class RowLock  

java.lang.Object
  org.apache.derby.iapi.store.raw.RowLock

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public final class RowLock

extends java.lang.Object

A RowLock represents a qualifier that is to be used when locking a Row through a RecordHandle.
MT - Immutable

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Field Summary
static java.lang.String	DIAG_CONGLOMID
static java.lang.String	DIAG_CONTAINERID
static java.lang.String	DIAG_COUNT
static java.lang.String	DIAG_GROUP
static java.lang.String	DIAG_INDEX
static java.lang.String	DIAG_LOCKMODE
static java.lang.String	DIAG_LOCKTYPE
static java.lang.String	DIAG_PAGENUM
static java.lang.String	DIAG_RECID
static java.lang.String	DIAG_SEGMENTID
static java.lang.String	DIAG_STATE
static java.lang.String	DIAG_XACTID
static boolean[][]	R_COMPAT           Row lock compatability table
static int	R_NUMBER           Number of row locks
static RowLock	RI
static RowLock	RIP
static RowLock	RS2
static RowLock	RS3
static RowLock	RU2
static RowLock	RU3
static RowLock	RX2
static RowLock	RX3
private static java.lang.String[]	shortnames
private  int	type

 

Constructor Summary
private	RowLock(int type)

 

Method Summary
int	getType()           Get an integer representation of the type of the lock.
boolean	isCompatible(int granted)
boolean	isCompatible(RowLock granted)
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

type

private final int type

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shortnames

private static java.lang.String[] shortnames

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RS2

public static final RowLock RS2

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RS3

public static final RowLock RS3

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RU2

public static final RowLock RU2

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RU3

public static final RowLock RU3

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RIP

public static final RowLock RIP

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RI

public static final RowLock RI

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RX2

public static final RowLock RX2

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RX3

public static final RowLock RX3

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R_NUMBER

public static final int R_NUMBER

Number of row locks

See Also:

Constant Field Values

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R_COMPAT

public static final boolean[][] R_COMPAT

Row lock compatability table

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DIAG_INDEX

public static final java.lang.String DIAG_INDEX

See Also:

Constant Field Values

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DIAG_XACTID

public static final java.lang.String DIAG_XACTID

See Also:

Constant Field Values

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DIAG_LOCKTYPE

public static final java.lang.String DIAG_LOCKTYPE

See Also:

Constant Field Values

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DIAG_LOCKMODE

public static final java.lang.String DIAG_LOCKMODE

See Also:

Constant Field Values

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DIAG_CONGLOMID

public static final java.lang.String DIAG_CONGLOMID

See Also:

Constant Field Values

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DIAG_CONTAINERID

public static final java.lang.String DIAG_CONTAINERID

See Also:

Constant Field Values

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DIAG_SEGMENTID

public static final java.lang.String DIAG_SEGMENTID

See Also:

Constant Field Values

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DIAG_PAGENUM

public static final java.lang.String DIAG_PAGENUM

See Also:

Constant Field Values

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DIAG_RECID

public static final java.lang.String DIAG_RECID

See Also:

Constant Field Values

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DIAG_COUNT

public static final java.lang.String DIAG_COUNT

See Also:

Constant Field Values

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DIAG_GROUP

public static final java.lang.String DIAG_GROUP

See Also:

Constant Field Values

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DIAG_STATE

public static final java.lang.String DIAG_STATE

See Also:

Constant Field Values

Constructor Detail

RowLock

private RowLock(int type)

Method Detail

getType

public int getType()

Get an integer representation of the type of the lock. This method is guaranteed to return an integer >= 0 and < R_NUMBER. No correlation between the value and one of the static variables (CIS etc.) is guaranteed, except that the values returned do not change.

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isCompatible

public boolean isCompatible(RowLock granted)

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isCompatible

public boolean isCompatible(int granted)

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> iapi >> store >> [ raw overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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