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Wrapper


java.sql

Interface Wrapper

    • Method Summary

      Methods
      Modifier and Type Method and Description
      boolean isWrapperFor(Class<?> iface)
      If the caller is a wrapper of the class or implements the given interface, the methods return false and vice versa.
      <T> T unwrap(Class<T> iface)
      Returns an object that implements the given interface.
    • Method Detail

      • unwrap

        <T> T unwrap(Class<T> iface)
                 throws SQLException
        Returns an object that implements the given interface. If the caller is not a wrapper, a SQLException will be thrown.
        Parameters:
        iface - - the class that defines the interface
        Returns:
        - an object that implements the interface
        Throws:
        SQLException - - if there is no object implementing the specific interface
      • isWrapperFor

        boolean isWrapperFor(Class<?> iface)
                             throws SQLException
        If the caller is a wrapper of the class or implements the given interface, the methods return false and vice versa.
        Parameters:
        iface - - the class that defines the interface
        Returns:
        - true if the instance implements the interface
        Throws:
        SQLException - - when an error occurs when judges the object


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