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org.apache.ojb.odmg.locking
Class LockEntry  

java.lang.Object
  org.apache.ojb.odmg.locking.LockEntry

All Implemented Interfaces:

java.io.Serializable

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public class LockEntry

extends java.lang.Object

implements java.io.Serializable

a persistent entry for locks. All locks that are hold from transaction on objects are represented by a LockENtry and made persistent to the database.

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Field Summary
private  int	isolationLevel           the isolationlevel for this lock.
static int	LOCK_READ           marks a Read Lock.
static int	LOCK_WRITE           marks a Write Lock.
private  int	lockType           marks if this is a read or a write lock.
private  java.lang.String	oidString           the unique OID of the object to be locked.
private  long	timestamp           the timestamp marking the time of acquisition of this lock
private  java.lang.String	transactionId           the GUID of the transaction that holds the lock

 

Constructor Summary

LockEntry()           default constructor

LockEntry(java.lang.String oidString, java.lang.String transactionId)           build a LockEntry from an OID and a Transaction ID

LockEntry(java.lang.String oidString, java.lang.String transactionId, long timestamp, int isolationLevel, int lockType)           Multiargument constructor for fast loading of LockEntries by OJB.

 

Method Summary
int	getIsolationLevel()           returns the isolation level of this lock
int	getLockType()           returns the locktype of this lock.
java.lang.String	getOidString()           returns the OID STring of the locked object.
long	getTimestamp()           returns the timestamp of the acqusition of the lock.
java.lang.String	getTransactionId()           returns the GUID string of the locking transaction.
boolean	isOwnedBy(org.apache.ojb.odmg.TransactionImpl tx)           returns true if this lock is owned by transaction tx, else false.
void	setLockType(int locktype)           sets the locktype of this lockentry.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

LOCK_READ

public static int LOCK_READ

marks a Read Lock.

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LOCK_WRITE

public static int LOCK_WRITE

marks a Write Lock.

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oidString

private java.lang.String oidString

the unique OID of the object to be locked.

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transactionId

private java.lang.String transactionId

the GUID of the transaction that holds the lock

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timestamp

private long timestamp

the timestamp marking the time of acquisition of this lock

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isolationLevel

private int isolationLevel

the isolationlevel for this lock.

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lockType

private int lockType

marks if this is a read or a write lock. LOCK_READ = 0; LOCK_WRITE = 1;

Constructor Detail

LockEntry

public LockEntry(java.lang.String oidString,
                 java.lang.String transactionId,
                 long timestamp,
                 int isolationLevel,
                 int lockType)

Multiargument constructor for fast loading of LockEntries by OJB.

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LockEntry

public LockEntry(java.lang.String oidString,
                 java.lang.String transactionId)

build a LockEntry from an OID and a Transaction ID

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LockEntry

public LockEntry()

default constructor

Method Detail

getOidString

public java.lang.String getOidString()

returns the OID STring of the locked object.

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getTransactionId

public java.lang.String getTransactionId()

returns the GUID string of the locking transaction.

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getTimestamp

public long getTimestamp()

returns the timestamp of the acqusition of the lock.

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getIsolationLevel

public int getIsolationLevel()

returns the isolation level of this lock

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getLockType

public int getLockType()

returns the locktype of this lock.

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setLockType

public void setLockType(int locktype)

sets the locktype of this lockentry.

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isOwnedBy

public boolean isOwnedBy(org.apache.ojb.odmg.TransactionImpl tx)

returns true if this lock is owned by transaction tx, else false.

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

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