Interface Guard

All Superinterfaces:
AutoCloseable
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface Guard extends AutoCloseable

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Guard
    EMPTY_GUARD
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
    Releases this guard.
    default Guard
    closeableOnce()
     
    static Guard
    closeableOnce(Guard guard)
     
    static Guard
    multi(Guard... guards)
    Returns a guard that is a composition of multiple guards.

  • Field Details

    • EMPTY_GUARD

      static final Guard EMPTY_GUARD

  • Method Details

    • close

      void close()
      Releases this guard. Does not throw.
      Specified by:
      close in interface AutoCloseable

    • closeableOnce

      default Guard closeableOnce()

    • closeableOnce

      static Guard closeableOnce(Guard guard)

    • multi

      static Guard multi(Guard... guards)
      Returns a guard that is a composition of multiple guards. Its close() method closes the guards in reverse order.
      Parameters:
      guards - guards that should be released (in reverse order) when the returned guards is released.