griffon.javafx.beans.binding

Class MatchingBindings

java.lang.Object

griffon.javafx.beans.binding.MatchingBindings

public final class MatchingBindings
extends Object

Since:

2.11.0

Author:

Andres Almiray

Method Summary

Modifier and Type	Method and Description
static <T,R> BooleanBinding	allMatch(ObservableList<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T,R> BooleanBinding	allMatch(ObservableList<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T> BooleanBinding	allMatch(ObservableList<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T> BooleanBinding	allMatch(ObservableList<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <K,V,R> BooleanBinding	allMatch(ObservableMap<K,V> items, Function<? super V,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <K,V,R> BooleanBinding	allMatch(ObservableMap<K,V> items, ObservableValue<Function<? super V,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <K,V> BooleanBinding	allMatch(ObservableMap<K,V> items, ObservableValue<Predicate<? super V>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <K,V> BooleanBinding	allMatch(ObservableMap<K,V> items, Predicate<? super V> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T,R> BooleanBinding	allMatch(ObservableSet<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T,R> BooleanBinding	allMatch(ObservableSet<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T> BooleanBinding	allMatch(ObservableSet<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T> BooleanBinding	allMatch(ObservableSet<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a allMatch predicate applied to the items.
static <T,R> BooleanBinding	anyMatch(ObservableList<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T,R> BooleanBinding	anyMatch(ObservableList<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T> BooleanBinding	anyMatch(ObservableList<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T> BooleanBinding	anyMatch(ObservableList<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <K,V,R> BooleanBinding	anyMatch(ObservableMap<K,V> items, Function<? super V,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <K,V,R> BooleanBinding	anyMatch(ObservableMap<K,V> items, ObservableValue<Function<? super V,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <K,V> BooleanBinding	anyMatch(ObservableMap<K,V> items, ObservableValue<Predicate<? super V>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <K,V> BooleanBinding	anyMatch(ObservableMap<K,V> items, Predicate<? super V> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T,R> BooleanBinding	anyMatch(ObservableSet<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T,R> BooleanBinding	anyMatch(ObservableSet<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T> BooleanBinding	anyMatch(ObservableSet<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T> BooleanBinding	anyMatch(ObservableSet<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a anyMatch predicate applied to the items.
static <T,R> BooleanBinding	noneMatch(ObservableList<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T,R> BooleanBinding	noneMatch(ObservableList<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T> BooleanBinding	noneMatch(ObservableList<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T> BooleanBinding	noneMatch(ObservableList<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <K,V,R> BooleanBinding	noneMatch(ObservableMap<K,V> items, Function<? super V,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <K,V,R> BooleanBinding	noneMatch(ObservableMap<K,V> items, ObservableValue<Function<? super V,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <K,V> BooleanBinding	noneMatch(ObservableMap<K,V> items, ObservableValue<Predicate<? super V>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <K,V> BooleanBinding	noneMatch(ObservableMap<K,V> items, Predicate<? super V> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T,R> BooleanBinding	noneMatch(ObservableSet<T> items, Function<? super T,R> mapper, Predicate<? super R> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T,R> BooleanBinding	noneMatch(ObservableSet<T> items, ObservableValue<Function<? super T,R>> mapper, ObservableValue<Predicate<? super R>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T> BooleanBinding	noneMatch(ObservableSet<T> items, ObservableValue<Predicate<? super T>> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.
static <T> BooleanBinding	noneMatch(ObservableSet<T> items, Predicate<? super T> predicate) Creates a boolean binding based on a noneMatch predicate applied to the items.

Methods inherited from class java.lang.Object

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

Method Detail

anyMatch

@Nonnull
public static <T> BooleanBinding anyMatch(@Nonnull
                                                   ObservableList<T> items,
                                                   @Nonnull
                                                   Predicate<? super T> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T,R> BooleanBinding anyMatch(@Nonnull
                                                     ObservableList<T> items,
                                                     @Nonnull
                                                     Function<? super T,R> mapper,
                                                     @Nonnull
                                                     Predicate<? super R> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T> BooleanBinding anyMatch(@Nonnull
                                                   ObservableList<T> items,
                                                   @Nonnull
                                                   ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T,R> BooleanBinding anyMatch(@Nonnull
                                                     ObservableList<T> items,
                                                     @Nonnull
                                                     ObservableValue<Function<? super T,R>> mapper,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T> BooleanBinding noneMatch(@Nonnull
                                                    ObservableList<T> items,
                                                    @Nonnull
                                                    Predicate<? super T> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T,R> BooleanBinding noneMatch(@Nonnull
                                                      ObservableList<T> items,
                                                      @Nonnull
                                                      Function<? super T,R> mapper,
                                                      @Nonnull
                                                      Predicate<? super R> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T> BooleanBinding noneMatch(@Nonnull
                                                    ObservableList<T> items,
                                                    @Nonnull
                                                    ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T,R> BooleanBinding noneMatch(@Nonnull
                                                      ObservableList<T> items,
                                                      @Nonnull
                                                      ObservableValue<Function<? super T,R>> mapper,
                                                      @Nonnull
                                                      ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T> BooleanBinding allMatch(@Nonnull
                                                   ObservableList<T> items,
                                                   @Nonnull
                                                   Predicate<? super T> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T,R> BooleanBinding allMatch(@Nonnull
                                                     ObservableList<T> items,
                                                     @Nonnull
                                                     Function<? super T,R> mapper,
                                                     @Nonnull
                                                     Predicate<? super R> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T> BooleanBinding allMatch(@Nonnull
                                                   ObservableList<T> items,
                                                   @Nonnull
                                                   ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable list of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T,R> BooleanBinding allMatch(@Nonnull
                                                     ObservableList<T> items,
                                                     @Nonnull
                                                     ObservableValue<Function<? super T,R>> mapper,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable list of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T> BooleanBinding anyMatch(@Nonnull
                                                   ObservableSet<T> items,
                                                   @Nonnull
                                                   Predicate<? super T> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T,R> BooleanBinding anyMatch(@Nonnull
                                                     ObservableSet<T> items,
                                                     @Nonnull
                                                     Function<? super T,R> mapper,
                                                     @Nonnull
                                                     Predicate<? super R> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T> BooleanBinding anyMatch(@Nonnull
                                                   ObservableSet<T> items,
                                                   @Nonnull
                                                   ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <T,R> BooleanBinding anyMatch(@Nonnull
                                                     ObservableSet<T> items,
                                                     @Nonnull
                                                     ObservableValue<Function<? super T,R>> mapper,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T> BooleanBinding noneMatch(@Nonnull
                                                    ObservableSet<T> items,
                                                    @Nonnull
                                                    Predicate<? super T> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T,R> BooleanBinding noneMatch(@Nonnull
                                                      ObservableSet<T> items,
                                                      @Nonnull
                                                      Function<? super T,R> mapper,
                                                      @Nonnull
                                                      Predicate<? super R> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T> BooleanBinding noneMatch(@Nonnull
                                                    ObservableSet<T> items,
                                                    @Nonnull
                                                    ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <T,R> BooleanBinding noneMatch(@Nonnull
                                                      ObservableSet<T> items,
                                                      @Nonnull
                                                      ObservableValue<Function<? super T,R>> mapper,
                                                      @Nonnull
                                                      ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T> BooleanBinding allMatch(@Nonnull
                                                   ObservableSet<T> items,
                                                   @Nonnull
                                                   Predicate<? super T> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T,R> BooleanBinding allMatch(@Nonnull
                                                     ObservableSet<T> items,
                                                     @Nonnull
                                                     Function<? super T,R> mapper,
                                                     @Nonnull
                                                     Predicate<? super R> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T> BooleanBinding allMatch(@Nonnull
                                                   ObservableSet<T> items,
                                                   @Nonnull
                                                   ObservableValue<Predicate<? super T>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable set of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <T,R> BooleanBinding allMatch(@Nonnull
                                                     ObservableSet<T> items,
                                                     @Nonnull
                                                     ObservableValue<Function<? super T,R>> mapper,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable set of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <K,V> BooleanBinding anyMatch(@Nonnull
                                                     ObservableMap<K,V> items,
                                                     @Nonnull
                                                     Predicate<? super V> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <K,V,R> BooleanBinding anyMatch(@Nonnull
                                                       ObservableMap<K,V> items,
                                                       @Nonnull
                                                       Function<? super V,R> mapper,
                                                       @Nonnull
                                                       Predicate<? super R> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <K,V> BooleanBinding anyMatch(@Nonnull
                                                     ObservableMap<K,V> items,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super V>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

anyMatch

@Nonnull
public static <K,V,R> BooleanBinding anyMatch(@Nonnull
                                                       ObservableMap<K,V> items,
                                                       @Nonnull
                                                       ObservableValue<Function<? super V,R>> mapper,
                                                       @Nonnull
                                                       ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a anyMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <K,V> BooleanBinding noneMatch(@Nonnull
                                                      ObservableMap<K,V> items,
                                                      @Nonnull
                                                      Predicate<? super V> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <K,V,R> BooleanBinding noneMatch(@Nonnull
                                                        ObservableMap<K,V> items,
                                                        @Nonnull
                                                        Function<? super V,R> mapper,
                                                        @Nonnull
                                                        Predicate<? super R> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <K,V> BooleanBinding noneMatch(@Nonnull
                                                      ObservableMap<K,V> items,
                                                      @Nonnull
                                                      ObservableValue<Predicate<? super V>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

noneMatch

@Nonnull
public static <K,V,R> BooleanBinding noneMatch(@Nonnull
                                                        ObservableMap<K,V> items,
                                                        @Nonnull
                                                        ObservableValue<Function<? super V,R>> mapper,
                                                        @Nonnull
                                                        ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a noneMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <K,V> BooleanBinding allMatch(@Nonnull
                                                     ObservableMap<K,V> items,
                                                     @Nonnull
                                                     Predicate<? super V> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <K,V,R> BooleanBinding allMatch(@Nonnull
                                                       ObservableMap<K,V> items,
                                                       @Nonnull
                                                       Function<? super V,R> mapper,
                                                       @Nonnull
                                                       Predicate<? super R> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <K,V> BooleanBinding allMatch(@Nonnull
                                                     ObservableMap<K,V> items,
                                                     @Nonnull
                                                     ObservableValue<Predicate<? super V>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable map of items.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding

allMatch

@Nonnull
public static <K,V,R> BooleanBinding allMatch(@Nonnull
                                                       ObservableMap<K,V> items,
                                                       @Nonnull
                                                       ObservableValue<Function<? super V,R>> mapper,
                                                       @Nonnull
                                                       ObservableValue<Predicate<? super R>> predicate)

Creates a boolean binding based on a allMatch predicate applied to the items.

Parameters:

items - the observable map of items.

mapper - a non-interfering, stateless function to apply to the each value before matching.

predicate - a non-interfering, stateless predicate to apply to the each element.

Returns:

a boolean binding