Package io.goobi.viewer.faces.utils

Class SelectItemBuilder

java.lang.Object

io.goobi.viewer.faces.utils.SelectItemBuilder

public final class SelectItemBuilder
extends Object

Tools to create SelectItem collections to use in jsf components.

Author:

Florian Alpers

Method Summary

Modifier and Type	Method	Description
static <T> SelectItem	createSelectItem(Function<T,Object> valueSupplier, Function<T,String> labelSupplier, Function<T,String> descriptionSupplier, T value, Predicate<T> disabledPredicate)
static <T> SortedMap<String,List<T>>	getAsAlphabeticallySortedMap(List<T> items, Function<T,String> sortValueSupplier)	Sorts the given list of items into buckets for each starting letter.
static <T> List<SelectItem>	getAsGroupedSelectItems(Map<String,List<T>> map, Function<T,Object> valueSupplier, Function<T,String> labelSupplier, Function<T,String> descriptionSupplier, Predicate<T> disabledPredicate)	Creates a List of selectItems from the given map, grouped into OptGroups for each map key.
static <T> SortedMap<String,List<T>>	getAsSortedMap(List<T> items, Function<T,List<String>> sortValueSupplier, Function<String,String> keyGenerator)	Sorts the given list of items into buckets for each values returned by the sortValueSupplier.

Methods inherited from class java.lang.Object

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

Method Details

getAsAlphabeticallySortedMap

public static <T> SortedMap<String,List<T>> getAsAlphabeticallySortedMap(List<T> items,
 Function<T,String> sortValueSupplier)

Sorts the given list of items into buckets for each starting letter.

Type Parameters:

T -

Parameters:

items - List of items that should be sorted

sortValueSupplier - Function mapping an item to the sting according to which it should be sorted

Returns:

Map with starting letters of sort values as keys

getAsSortedMap

public static <T> SortedMap<String,List<T>> getAsSortedMap(List<T> items,
 Function<T,List<String>> sortValueSupplier,
 Function<String,String> keyGenerator)

Sorts the given list of items into buckets for each values returned by the sortValueSupplier.

Type Parameters:

T -

Parameters:

items - List of items that should be sorted

sortValueSupplier - Function mapping an item to the string according to which it should be sorted

keyGenerator - Function that creates labels for the return values of the sortValueSupplier. These labels are used as the actual keys of the map

Returns:

Map with starting letters of sort values as keys

getAsGroupedSelectItems

public static <T> List<SelectItem> getAsGroupedSelectItems(Map<String,List<T>> map,
 Function<T,Object> valueSupplier,
 Function<T,String> labelSupplier,
 Function<T,String> descriptionSupplier,
 Predicate<T> disabledPredicate)

Creates a List of selectItems from the given map, grouped into OptGroups for each map key.

Type Parameters:

T -

Parameters:

map - Map of items to include in selectItems

valueSupplier - function extracting the select value from an item

labelSupplier - function extracting the display label from an item

descriptionSupplier - function extracting the description from an item

disabledPredicate - predicate determining whether an item is disabled

Returns:

List

createSelectItem

public static <T> SelectItem createSelectItem(Function<T,Object> valueSupplier,
 Function<T,String> labelSupplier,
 Function<T,String> descriptionSupplier,
 T value,
 Predicate<T> disabledPredicate)

Type Parameters:

T -

Parameters:

valueSupplier - function extracting the select value from an item

labelSupplier - function extracting the display label from an item

descriptionSupplier - function extracting the description from an item

value - the item to create a SelectItem for

disabledPredicate - predicate determining whether the item is disabled

Returns:

SelectItem