org.zkoss.zul
Class ListModels

java.lang.Object
  org.zkoss.zul.ListModels

public class ListModels
extends java.lang.Object

A utility for handling ListModel.

Since:

5.0.4

Author:

jumperchen

Field Summary

static java.util.Comparator	MAP_COMPARATOR A comparator for ListSubModel.getSubModel(java.lang.Object, int) to check if a value retrieved from the model matches the user typed.
static java.util.Comparator	STRING_COMPARATOR A comparator for ListSubModel.getSubModel(java.lang.Object, int) to check if a value retrieved from the model matches the user typed.

Method Summary

static <T> ListModel<T>	toListSubModel(ListModel<T> model) Returns a proxy instance of the given model that implements ListSubModel and ListModel interface.
static <T> ListModel<T>	toListSubModel(ListModel<T> model, java.util.Comparator<T> comparator, int nRows) Returns a proxy instance of the given model that implements ListSubModel and ListModel interface.

Methods inherited from class java.lang.Object

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

Field Detail

STRING_COMPARATOR

public static final java.util.Comparator STRING_COMPARATOR

A comparator for ListSubModel.getSubModel(java.lang.Object, int) to check if a value retrieved from the model matches the user typed. To compare, it will convert them to String instances, and return 0 (i.e., matched), when the value starts with the user typed, and both of them are not empty.

MAP_COMPARATOR

public static final java.util.Comparator MAP_COMPARATOR

A comparator for ListSubModel.getSubModel(java.lang.Object, int) to check if a value retrieved from the model matches the user typed. It assumes the model is Map, and the value is Map.Entry. To compare, it will convert them to String instances, and return 0 when the value (Map.Entry's getValue()) starts with the user typed, and both of them are not empty.

Method Detail

toListSubModel

public static <T> ListModel<T> toListSubModel(ListModel<T> model,
                                              java.util.Comparator<T> comparator,
                                              int nRows)

Returns a proxy instance of the given model that implements ListSubModel and ListModel interface.

Parameters:

model - a model

comparator - used to compare the value typed by user and the value from the model. The first argument is the value typed by user, and the second argument is the value retrieved from the model. It shall return 0 if they matched (i.e., shall be shown).

nRows - the maximal allowed number of matched items.

toListSubModel

public static <T> ListModel<T> toListSubModel(ListModel<T> model)

Returns a proxy instance of the given model that implements ListSubModel and ListModel interface.

The default comparator depends on the type of the model, if the model is an instance of ListModelMap, MAP_COMPARATOR is used. Otherwise, STRING_COMPARATOR is used.

In additions, the maximal allowed number of matched items is 15.

If you want more control, use toListSubModel(ListModel, Comparator, int) instead.

Parameters:

model - a ListModel

See Also:

toListSubModel(ListModel, Comparator, int)