net.eduvax.util

Class AbstractCommand

java.lang.Object

net.eduvax.util.AbstractCommand

All Implemented Interfaces:

java.lang.Runnable, Command

public abstract class AbstractCommand
extends java.lang.Object
implements Command

Default command. Just have to implement a run method.

Field Summary

Fields

Modifier and Type	Field and Description
private ErrorHandler	_errHandler Error handler
private java.util.Hashtable<java.lang.String,java.lang.String>	_params Store params
private java.lang.String	_queryString Store all param as query string when all params set at once.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractCommand() Create new command

Method Summary

Methods

Modifier and Type	Method and Description
protected ErrorHandler	getErrorHandler()
java.lang.String	getParameter(java.lang.String name) get one paramater
protected java.lang.String	getQueryString() get query strings.
void	setErrorHandler(ErrorHandler handler) Change error handler
void	setParameter(java.lang.String name, java.lang.String value) Set one parameter.
void	setParameters(java.lang.String param) Default command parameter settings.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Runnable

run

Field Detail

_queryString

private java.lang.String _queryString

Store all param as query string when all params set at once.

_params

private java.util.Hashtable<java.lang.String,java.lang.String> _params

Store params

_errHandler

private ErrorHandler _errHandler

Error handler

Constructor Detail

AbstractCommand

protected AbstractCommand()

Create new command

Method Detail

setParameters

public void setParameters(java.lang.String param)

Default command parameter settings. All parameter are set with one string using following format : param1=val1¶m2=val2&...¶mn=valn

Specified by:

setParameters in interface Command

Parameters:

param - parameters definition

setParameter

public void setParameter(java.lang.String name,
                java.lang.String value)

Set one parameter.

Specified by:

setParameter in interface Command

Parameters:

name - parameter name

value - parameter value

getParameter

public java.lang.String getParameter(java.lang.String name)

get one paramater

Parameters:

name - requested paramter name

Returns:

found parameter value, null when not found.

getQueryString

protected java.lang.String getQueryString()

get query strings. get all params as a query string (like "param1=val1&param2=val2&...). In facts returns only the string defined with setParameters(String). Individualy set parameters using setParameter(String,String) are not included in returned query string.

Returns:

query string, or null if none.

setErrorHandler

public void setErrorHandler(ErrorHandler handler)

Change error handler

Specified by:

setErrorHandler in interface Command

Parameters:

handler - new handler

getErrorHandler

protected ErrorHandler getErrorHandler()

Returns:

error handler, null when no handler set.