JxBrowser/com.teamdev.jxbrowser.js/[jvm]JsMap

JsMap

public interface JsMap implements JsObject

A JavaScript map.

A map object can be passed between Java and JavaScript as a method argument or a return value. The object lifetime is bound to the lifetime of the frame this object belongs to. When the owner frame is unloaded, all the JavaScript objects are automatically disposed.

An attempt to access a disposed JavaScript object will result in IllegalStateException.

Since

7.20

Functions

call

public abstract T call<T>(String methodName, Array<Object> args)

Executes the function with the given methodName and the args in the JavaScript object.

clear

public abstract void clear()

Removes all elements from this map.

public abstract void close()

Closes this JavaScript object.

delete

public abstract boolean delete(Object key)

Removes the mapping for the specified key from this map.

frame

public abstract Frame frame()

Returns the Frame instance of this JavaScript object.

get

public abstract T get<T>(Object key)

Returns the value associated with the specified key or an empty Optional if there is no such key in this map.

has

public abstract boolean has(Object key)

Returns true if this map contains a mapping for the specified key.

hasProperty

public abstract boolean hasProperty(String name)

Checks whether this JavaScript object or any of its prototypes has an enumerable property with the given name.

ownPropertyNames

public abstract List<String> ownPropertyNames()

Returns an immutable list of the names of the properties of this JavaScript object, both enumerable and non-enumerable, excluding the properties from the prototype objects.

property

public abstract Optional<T> property<T>(String name)

Returns an Optional describing the value of the JavaScript object's property with the given name or an empty Optional if there is no such property or its value is undefined.

propertyNames

public abstract List<String> propertyNames()

Returns an immutable list of the names of the enumerable properties of this JavaScript object, including the properties from the prototype objects.

putProperty

public abstract boolean putProperty(String name, @Nullable() Object value)

Creates a new property with the given name or updates the existing one in the current JavaScript object and returns true if the property with the given name was created or updated successfully.

removeProperty

public abstract boolean removeProperty(String name)

Removes a property with the given name in the JavaScript object and returns


true

if the property was successfully removed.

set

public abstract JsMap set(Object key, Object value)

Associates the specified key with the specified value.

size

public abstract long size()

Returns the number of key-value mappings in this map.

toMap

public abstract Map<Object, Object> toMap()

Converts this map to a Map.

public abstract Map<K, V> toMap<K, V>(Class<K> keyType, Class<V> valueType)

Converts this map to a Map.