org.apache.hive.beeline

Class AbstractCommandHandler

java.lang.Object

org.apache.hive.beeline.AbstractCommandHandler

Direct Known Subclasses:

ReflectiveCommandHandler

public abstract class AbstractCommandHandler
extends Object

An abstract implementation of CommandHandler.

Field Summary

Fields

Modifier and Type	Field and Description
protected Throwable	lastException

Constructor Summary

Constructors

Constructor and Description
AbstractCommandHandler(BeeLine beeLine, String[] names, String helpText, jline.console.completer.Completer[] completors)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	execute(String line) Execute the specified command.
String	getHelpText()
Throwable	getLastException() Returns exception thrown for last command
String	getName()
String[]	getNames()
jline.console.completer.Completer[]	getParameterCompleters() Returns the completors that can handle parameters.
String	matches(String line) Check to see if the specified string can be dispatched to this command.
void	setParameterCompleters(jline.console.completer.Completer[] parameterCompleters)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

lastException

protected transient Throwable lastException

Constructor Detail

AbstractCommandHandler

public AbstractCommandHandler(BeeLine beeLine,
                      String[] names,
                      String helpText,
                      jline.console.completer.Completer[] completors)

Method Detail

getHelpText

public String getHelpText()

Returns:

the short help description for this command.

getName

public String getName()

Returns:

the name of the command

getNames

public String[] getNames()

Returns:

all the possible names of this command.

matches

public String matches(String line)

Check to see if the specified string can be dispatched to this command.

Parameters:

line - the command line to check.

Returns:

the command string that matches, or null if it no match

setParameterCompleters

public void setParameterCompleters(jline.console.completer.Completer[] parameterCompleters)

getParameterCompleters

public jline.console.completer.Completer[] getParameterCompleters()

Returns the completors that can handle parameters.

getLastException

public Throwable getLastException()

Returns exception thrown for last command

Returns:

execute

public boolean execute(String line)

Execute the specified command.

Parameters:

line - the full command line to execute.