org.apache.derby.iapi.services.locks

Interface VirtualLockTable

public interface VirtualLockTable

This class acts as a conduit of information between the lock manager and the outside world. Once a virtual lock table is initialized, it contains a snap shot of all the locks currently held in the lock manager. A VTI can then be written to query the content of the lock table.

Each lock held by the lock manager is represented by a Hashtable. The key to each Hashtable entry is a lock attribute that is of interest to the outside world, such as transaction id, type, mode, etc.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALL
static java.lang.String	CONGLOMID
static java.lang.String	CONTAINERID
static java.lang.String	INDEXNAME
static int	LATCH
static java.lang.String	LOCKCOUNT
static java.lang.String	LOCKMODE
static java.lang.String	LOCKNAME
static java.lang.String	LOCKOBJ
static java.lang.String	LOCKTYPE
static java.lang.String	PAGENUM
static java.lang.String	RECID
static java.lang.String	SEGMENTID
static int	SHEXLOCK
static java.lang.String	STATE
static int	TABLE_AND_ROWLOCK
static java.lang.String	TABLENAME
static java.lang.String	TABLETYPE
static java.lang.String	XACTID

Field Detail

LATCH

static final int LATCH

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Constant Field Values

TABLE_AND_ROWLOCK

static final int TABLE_AND_ROWLOCK

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Constant Field Values

SHEXLOCK

static final int SHEXLOCK

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Constant Field Values

ALL

static final int ALL

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Constant Field Values

LOCKTYPE

static final java.lang.String LOCKTYPE

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Constant Field Values

LOCKNAME

static final java.lang.String LOCKNAME

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Constant Field Values

CONGLOMID

static final java.lang.String CONGLOMID

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Constant Field Values

CONTAINERID

static final java.lang.String CONTAINERID

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Constant Field Values

SEGMENTID

static final java.lang.String SEGMENTID

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Constant Field Values

PAGENUM

static final java.lang.String PAGENUM

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Constant Field Values

RECID

static final java.lang.String RECID

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Constant Field Values

XACTID

static final java.lang.String XACTID

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Constant Field Values

LOCKCOUNT

static final java.lang.String LOCKCOUNT

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Constant Field Values

LOCKMODE

static final java.lang.String LOCKMODE

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Constant Field Values

STATE

static final java.lang.String STATE

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Constant Field Values

LOCKOBJ

static final java.lang.String LOCKOBJ

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Constant Field Values

TABLENAME

static final java.lang.String TABLENAME

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Constant Field Values

INDEXNAME

static final java.lang.String INDEXNAME

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Constant Field Values

TABLETYPE

static final java.lang.String TABLETYPE

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Constant Field Values