org.apache.karaf.main
Interface Lock

All Known Implementing Classes:

DefaultJDBCLock, DerbyJDBCLock, MySQLJDBCLock, OracleJDBCLock, SimpleFileLock

public interface Lock

Method Summary

boolean	isAlive() Indicates whether or not the lock still exists.
boolean	lock() A KeepAlive function to maintain the lock.
void	release() Terminate the lock connection safely.

Method Detail

lock

boolean lock()
             throws java.lang.Exception

A KeepAlive function to maintain the lock. Indicates whether or not the lock could be aquired.

Returns:

true if connection lock retained, false otherwise.

Throws:

java.lang.Exception

release

void release()
             throws java.lang.Exception

Terminate the lock connection safely.

Throws:

java.lang.Exception

isAlive

boolean isAlive()
                throws java.lang.Exception

Indicates whether or not the lock still exists.

Returns:

true, if the lock still exists, otherwise false.

Throws:

java.lang.Exception