com.izforge.izpack.panels.userinput.field
Class FieldHelper

java.lang.Object
  com.izforge.izpack.panels.userinput.field.FieldHelper

public class FieldHelper
extends Object

Determines if a field is selected for display.

Author:

Tim Anderson

Constructor Summary

FieldHelper()

Method Summary

static boolean	isRequired(Field field, InstallData installData, PlatformModelMatcher matcher) Determines if a field is required if the field is required for the current platform and selected packs.
static boolean	isRequiredForPacks(List<String> packNames, List<Pack> selectedPacks) Determine if an item is required by any of the selected packs.
static boolean	isRequiredForUnselectedPacks(List<String> packNames, List<Pack> selectedPacks) Determine if an item is required by any of the unselected packs.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldHelper

public FieldHelper()

Method Detail

isRequired

public static boolean isRequired(Field field,
                                 InstallData installData,
                                 PlatformModelMatcher matcher)

Determines if a field is required if the field is required for the current platform and selected packs.

Parameters:

field - the field

installData - the installation data

matcher - the platform-model matcher

Returns:

true if the field is required for the current platform and selected packs

isRequiredForPacks

public static boolean isRequiredForPacks(List<String> packNames,
                                         List<Pack> selectedPacks)

Determine if an item is required by any of the selected packs.

An item is required if it has no pack constraints, or names one or more selected packs.

Parameters:

packNames - the item's pack constraints. Each name corresponds to a pack for which the item should be created if the pack is selected for installation

selectedPacks - the selected packs

Returns:

true if packs is empty, or one of the packs appears in selectedPacks

isRequiredForUnselectedPacks

public static boolean isRequiredForUnselectedPacks(List<String> packNames,
                                                   List<Pack> selectedPacks)

Determine if an item is required by any of the unselected packs.

An item is required if it has no pack constraints, or doesn't name any selected packs.

Parameters:

packNames - the item's pack constraints. Each name corresponds to a pack for which the item should be created if the pack is not selected for installation

selectedPacks - the selected packs

Returns:

true if packs is empty, or none of the packs appears in selectedPacks