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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.db.store   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.caucho.db.store.Lock Lock final public class Lock (Code) Locking for tables/etc. Constructor Summary public   Lock(String id)      Method Summary public  String getId()      Returns the lock identifier.  void lockRead(Transaction xa, long timeout)      Tries to get a read lock.  void lockReadAndWrite(Transaction xa, long timeout)      Tries to get a write lock. public  boolean lockReadAndWriteNoWait()      Tries to get a write lock, but does not wait if other threads are reading or writing.  void lockWrite(Transaction xa, long timeout)      Tries to get a write lock when already have a read lock. public  String toString()       void unlockRead()      Clears a read lock.  void unlockReadAndWrite()      Clears a write lock.  void unlockWrite()      Clears a write lock.  void waitForCommit()      Constructor Detail Lock public Lock(String id)(Code) Method Detail getId public String getId()(Code) Returns the lock identifier. lockRead void lockRead(Transaction xa, long timeout) throws LockTimeoutException(Code) Tries to get a read lock. Parameters:   timeout - how long to wait for a timeout lockReadAndWrite void lockReadAndWrite(Transaction xa, long timeout) throws SQLException(Code) Tries to get a write lock. Parameters:   timeout - how long to wait for a timeout lockReadAndWriteNoWait public boolean lockReadAndWriteNoWait() throws SQLException(Code) Tries to get a write lock, but does not wait if other threads are reading or writing. insert() uses this call to avoid blocking when allocating a new row. true if the write was successful lockWrite void lockWrite(Transaction xa, long timeout) throws SQLException(Code) Tries to get a write lock when already have a read lock. Parameters:   timeout - how long to wait for a timeout toString public String toString()(Code) unlockRead void unlockRead() throws SQLException(Code) Clears a read lock. unlockReadAndWrite void unlockReadAndWrite() throws SQLException(Code) Clears a write lock. unlockWrite void unlockWrite() throws SQLException(Code) Clears a write lock. waitForCommit void waitForCommit()(Code) Waits until all the writers drain before committing, see Block.commit() Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)