Interface CompatibilitySpace

  • All Known Implementing Classes:
    LockSpace

    public interface CompatibilitySpace

    This interface must be implemented by objects returned from LockFactory.createCompatibilitySpace().

    A CompatibilitySpace can have an owner (for instance a transaction). Currently, the owner is used by the virtual lock table to find out which transaction a lock belongs to. Some parts of the code also use the owner as a group object which guarantees that the lock is released on a commit or an abort. The owner has no special meaning to the lock manager and can be any object, including null.

    See Also:
    LockFactory.createCompatibilitySpace(org.apache.derby.iapi.services.locks.LockOwner)
    • Method Detail

      • getOwner

        LockOwner getOwner()
        Gets an object representing the owner of the compatibility space.
        Returns:
        object representing the owner of the compatibility space, or null if no owner has been specified.