# Interface SSICommand

All Known Implementing Classes:
  `SSIConditional`, `SSIConfig`, `SSIEcho`, `SSIExec`, `SSIFlastmod`, `SSIFsize`, `SSIInclude`, `SSIPrintenv`, `SSISet`

public interface SSICommand
The interface that all SSI commands ( SSIEcho, SSIInclude, ...) must implement.

Author:
  Bip Thelin, Dan Sandberg, David Becker

- ## Method Summary

  Modifier and Type
  Method
  Description
  `long`
  `process(SSIMediator ssiMediator, String commandName, String[] paramNames, String[] paramValues, PrintWriter writer)`
  Write the output of the command to the writer.

- ## Method Details

  - ### process

    long process(SSIMediator ssiMediator, String commandName, String[] paramNames, String[] paramValues, PrintWriter writer) throws SSIStopProcessingException
    Write the output of the command to the writer.
    Parameters:
      `ssiMediator` - the ssi mediator
      `commandName` - the name of the actual command ( ie. echo )
      `paramNames` - The parameter names
      `paramValues` - The parameter values
      `writer` - the writer to output to
    Returns:
      the most current modified date resulting from any SSI commands
    Throws:
      `SSIStopProcessingException` - if SSI processing should be aborted