Class SystemPropertiesCommandImpl

  • All Implemented Interfaces:
    Command

    public class SystemPropertiesCommandImpl
    extends Object
    implements Command
    Command to display, set and modify system properties Usage: sysprop -> displays all the system properties sysprop [key] -> displays the [key] property sysprop -r [key] -> removes the [key] property sysprop [key] [value] -> set the property [key] to [value]
    • Constructor Detail

      • SystemPropertiesCommandImpl

        public SystemPropertiesCommandImpl()
    • Method Detail

      • execute

        public void execute​(String line,
                            PrintStream out,
                            PrintStream err)
        Description copied from interface: Command
        Executes the command using the supplied command line, output print stream, and error print stream.
        Specified by:
        execute in interface Command
        Parameters:
        line - the complete command line, including the command name.
        out - the print stream to use for standard output.
        err - the print stream to use for standard error.
      • getName

        public String getName()
        Description copied from interface: Command
        Returns the name of the command that is implemented by the interface. The command name should not contain whitespace and should also be unique.
        Specified by:
        getName in interface Command
        Returns:
        the name of the command.
      • getShortDescription

        public String getShortDescription()
        Description copied from interface: Command
        Returns a short description of the command; this description should be as short as possible. This information is used when generating the command help information.
        Specified by:
        getShortDescription in interface Command
        Returns:
        a short description of the command.
      • getUsage

        public String getUsage()
        Description copied from interface: Command
        Returns the usage string for the command. The usage string is a short string that illustrates how to use the command on the command line. This information is used when generating command help information. An example usage string for the install command is:
             install  [ ...]
         
        Specified by:
        getUsage in interface Command
        Returns:
        the usage string for the command.