com.izforge.izpack.installer.requirement
Class JDKChecker

java.lang.Object
  com.izforge.izpack.installer.requirement.JDKChecker

All Implemented Interfaces:

RequirementChecker

public class JDKChecker
extends Object
implements RequirementChecker

Verifies that the correct JDK version is available for installation to proceed.

Author:

Tim Anderson

Constructor Summary

JDKChecker(InstallData installData, Prompt prompt)
Constructs a JDKChecker.

Method Summary

boolean	check() Determines if the JDK is required, and if so, if it exists.
protected boolean	exists() Determines if the JDK is installed, by executing attempting to execute javac.
protected boolean	notFound() Invoked when the JDK is not found.

Methods inherited from class java.lang.Object

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

Constructor Detail

JDKChecker

public JDKChecker(InstallData installData,
                  Prompt prompt)

Constructs a JDKChecker.

Parameters:

installData - the installation data

prompt - the prompt

Method Detail

check

public boolean check()

Determines if the JDK is required, and if so, if it exists.

Specified by:

check in interface RequirementChecker

Returns:

true if JDK requirements are met, otherwise false

exists

protected boolean exists()

Determines if the JDK is installed, by executing attempting to execute javac.

Returns:

true if javac was successfully executed, otherwise false

notFound

protected boolean notFound()

Invoked when the JDK is not found.

This prompts the user to proceed with the installation or cancel it

Returns:

true if the user proceeds with the installation, false if they cancel it