JSObject (Codename One API)

java.lang.Object
- com.codename1.javascript.JSObject

Deprecated.
Use BrowserComponent.createJSProxy(java.lang.String) to create a Javascript proxy object instead.
```
public class JSObject
extends Object
```
A Java Wrapper around a Javascript object. In Javascript there are only a few different types: Number, String, Boolean, Null, Undefined, and Object.
NOTE: The com.codename1.javascript package is now deprecated. The preferred method of Java/Javascript interop is to use BrowserComponent.execute(java.lang.String), BrowserComponent.execute(java.lang.String, com.codename1.util.SuccessCallback), BrowserComponent.executeAndWait(java.lang.String), etc.. as these work asynchronously (except in the XXXAndWait() variants, which use invokeAndBlock() to make the calls synchronously.
Arrays and functions are objects also.
A JSObject is associated with a particular JavascriptContext and it is backed by a Javascript object inside the javascript context. This object acts as a proxy to call methods and access properties of the actual javascript object.

All return values for Javascript calls in the JavascriptContext will be converted to the appropriate Java type. Javascript objects will automatically be wrapped in a JSObject proxy.

Getting and Setting Properties

JSObject provides get(String) and set(String,Object) methods to get and set properties on the object. E.g.
obj.set("name", "Steve"); obj.set("age", 12); String name = (String)obj.get("name"); // Steve Double age = (Double)obj.get("age"); // 12.0
Typed Getters

The return value of get(String) will be one of Double, String, Boolean, or JSObject depending on the type of Javascript value that is being returned. get(String) requires you to cast the return value to the correct type, which is a bit a pain. Luckily, JSObject provides a set of typed getter methods that will automatically cast to particular types:

getInt() Returns int

getString() Returns String

getDouble() Returns double

getObject() Returns JSObject

getBoolean() Returns boolean

Indexed Properties

JSObject can wrap Javascript arrays also. You can retrieve the indexed properties of the array using indexed versions of get(int) and set(int,Object) (i.e. they take an int as their first parameter instead of a String). There are also typed versions of the indexed get(int) method to allow directly returning values of the correct type without having to type cast

Example, looping through array
JSObject colors = ctx.get("['red','green','blue']"); int len = colors.getInt("length"); for ( int i=0; i< len; i++ ){ System.out.println("Color "+i+" is "+colors.getString(i)); }
Calling Object Methods

JSObject allows you to call Javascript object methods on the wrapped Javascript object via the its call(String,Object[]) method. It takes the name of the method (i.e. property name that stores the function), and an array of parameters to pass to the method.
JSObject document = (JSObject)context.get("document"); // Call document.writeln("Hello world"); document.call("writeln", new Object[]{"Hello world"});
Calling Wrapped Functions

Since, in Javascript, functions are objects, it is possible to wrap a function with a JSObject object also. You can then call the function using the alternate version of the #call(JSObject,Object[]) method.
JSObject window = (JSObject)context.get("window"); // reference to the window object so that we can pass it as the context // of the function call. JSObject myfunc = (JSObject)context.get("function(a,b){ return a+b}"); Double result = (Double)myfunc.call(window, new Object[]{new Integer(1), new Integer(2)});
Calling Java Methods from Javascript

The JSFunction interface allows you to implement functions in Java that can be called from Javascript. You can assign any JSFunction object to be a member method of an existing JSObject via the JSObject.set() method. Then the function can be called from javascript just like any other Javascript method. JSFunction methods are called asynchronously from Javascript to prevent deadlocks. If you require a return value to Javascript, you can do that by passing a callback function which is called by the JSFunction with some parameters.

The following example, adds a camera object to the Javascript environment that has a capture() method, which can be used to capture images using the device's camera:
// Create a new Javascript object "camera" final JSObject camera = (JSObject)ctx.get("{}"); // Create a capture() method on the camera object // as a JSFunction callback. camera.set("capture", new JSFunction(){ public void apply(JSObject self, final Object[] args) { Display.getInstance().capturePhoto(new ActionListener(){ public void actionPerformed(ActionEvent evt) { String imagePath = (String)evt.getSource(); // Get the callback function that was provided // from javascript JSObject callback = (JSObject)args[0]; ctx.call( callback, // The function camera, // The "this" object new Object[]{"file://"+imagePath} // Parameters ); } }); } }); // Add the camera object to the top-level window object ctx.set("window.camera", camera);
We can then capture photos directly from Javascript using a function similar to the following:
camera.capture(function(url){ if ( url == null ){ // No image was captured return; } // Fetch the preview <img> tag. var image = document.getElementById('preview-image'); // Set the preview URL to the image that was taken. image.src = url; });

Constructor Summary

Constructors
Constructor and Description

JSObject(JavascriptContext context, String expr)
Deprecated.

Constructor for a JSObject.

Constructors
Constructor and Description
`JSObject(JavascriptContext context, String expr)` Deprecated. Constructor for a JSObject.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`Object`	`call(Object... params)` Deprecated. Calls the object as a function statically.
`Object`	`call(String key)` Deprecated. Calls a method on the underlying Javascript object synchronously with no arguments.
`Object`	`call(String key, Object[] params)` Deprecated. Calls a method on the underlying Javascript object.
`void`	`callAsync(Object[] params, Callback callback)` Deprecated. Calls the object as a function statically.
`void`	`callAsync(Object[] params, SuccessCallback callback)` Deprecated. Calls the object as a function statically.
`void`	`callAsync(String key, Callback callback)` Deprecated. Calls a method on the underlying Javascript object asynchronously with no arguments.
`void`	`callAsync(String key, Object[] params, Callback callback)` Deprecated. Calls a method on the underlying Javascript object asynchronously.
`void`	`callAsync(String key, Object[] params, SuccessCallback callback)` Deprecated. Calls a method on the underlying Javascript object asynchronously.
`void`	`callAsync(String key, SuccessCallback callback)` Deprecated. Calls a method on the underlying Javascript object asynchronously with no arguments.
`double`	`callDouble(String key)` Deprecated. Calls a method on the underlying Javascript object that returns a double.
`void`	`callDoubleAsync(String key, Callback<Double> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a double.
`void`	`callDoubleAsync(String key, SuccessCallback<Double> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a double.
`int`	`callInt(String key)` Deprecated. Calls a method on the underlying Javascript object that returns an int.
`void`	`callIntAsync(String key, Callback<Integer> callback)` Deprecated. Calls a method on the underlying Javascript object that returns an int.
`void`	`callIntAsync(String key, SuccessCallback<Integer> callback)` Deprecated. Calls a method on the underlying Javascript object that returns an int.
`JSObject`	`callObject(String key)` Deprecated. Calls a method on the underlying Javascript object that returns a Javascript object.
`void`	`callObjectAsync(String key, Callback<JSObject> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a Javascript object.
`void`	`callObjectAsync(String key, SuccessCallback<JSObject> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a Javascript object.
`String`	`callString(String key)` Deprecated. Calls a method on the underlying Javascript object that returns a String.
`void`	`callStringAsync(String key, Callback<String> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a String.
`void`	`callStringAsync(String key, SuccessCallback<String> callback)` Deprecated. Calls a method on the underlying Javascript object that returns a String.
`Object`	`get(int index)` Deprecated. This method is useful only for JSObjects that encapsulate Javascript arrays.
`Object`	`get(String key)` Deprecated. Returns a member variable of the Javascript object.
`boolean`	`getBoolean(int index)` Deprecated. Wrapper for get(int) for indexed boolean values.
`boolean`	`getBoolean(String key)` Deprecated. Wrapper around get() to return a boolean.
`double`	`getDouble(int index)` Deprecated. Wrapper for get(int) for indexed double values.
`double`	`getDouble(String key)` Deprecated. Wrapper around get() to return a double.
`int`	`getInt(int index)` Deprecated. Wrapper for get(int) for indexed int values.
`int`	`getInt(String key)` Deprecated. Wrapper around get() to return an int
`JSObject`	`getObject(int index)` Deprecated. Wrapper for get(int) for indexed object values.
`JSObject`	`getObject(String key)` Deprecated. Wrapper around the get() method to return a JSObject.
`String`	`getString(int index)` Deprecated. Wrapper for get(int) for indexed string values.
`String`	`getString(String key)` Deprecated. Wrapper around get() to return a String.
`void`	`set(int index, Object js)` Deprecated. Sets an indexed value on this object synchronously (assuming this object is a Javascript array).
`void`	`set(int index, Object js, boolean async)` Deprecated. Sets an indexed value on this object (assuming this object is a Javascript array).
`void`	`set(String key, Object js)` Deprecated. Sets a property on this object.
`void`	`set(String key, Object js, boolean async)` Deprecated. Sets a property on the underlying Javascript object.
`void`	`setBoolean(int index, boolean value)` Deprecated. Sets an indexed value on this array to a boolean synchronously.
`void`	`setBoolean(int index, boolean value, boolean async)` Deprecated. Sets an indexed value on this array to a boolean.
`void`	`setBoolean(String key, boolean value)` Deprecated. Sets a property on this object to a boolean value synchronously.
`void`	`setBoolean(String key, boolean value, boolean async)` Deprecated. Sets a property on this object to a boolean value.
`void`	`setDouble(int index, double value)` Deprecated. Sets an indexed value on this array to a double synchronously.
`void`	`setDouble(int index, double value, boolean async)` Deprecated. Sets an indexed value on this array to a double.
`void`	`setDouble(String key, double value)` Deprecated. Sets a property on this object to a double value synchronously.
`void`	`setDouble(String key, double value, boolean async)` Deprecated. Sets a property on this object to a double value.
`void`	`setInt(int index, int value)` Deprecated. Sets an indexed value on this array to an integer synchronously.
`void`	`setInt(int index, int value, boolean async)` Deprecated. Sets an indexed value on this array to an integer.
`void`	`setInt(String key, int value)` Deprecated. Sets a property on this object to an integer value synchronously.
`void`	`setInt(String key, int value, boolean async)` Deprecated. Sets a property on this object to an integer value.
`String`	`toJSPointer()` Deprecated. Returns a Javascript variable name for the underlying Javascript object.
`String`	`toString()` Deprecated. Returns the toString from the JavaScript object effectively the equivalent of `callString("toString")`

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - JSObject
```
public JSObject(JavascriptContext context,
                String expr)
```
    Deprecated.
    Constructor for a JSObject.
    Example
    // Create a JavascriptContext for a browser component JavascriptContext ctx = new JavascriptContext(browserComponent); // Get reference to the window object JSObject window = new JSObject(ctx, "window"); // This is equivalent to window = (JSObject)ctx.get("window");
    Parameters:
    
    context - The javascript context in which this object is being created.
    
    expr - A javascript expression that resolves to a Javascript Object.
- Method Detail
  - get
```
public Object get(String key)
```
    Deprecated.
    Returns a member variable of the Javascript object.
    E.g., suppose you have a Javascript object myCar whose JSON representation is
    { make : 'Ford', model : 'Escort', 'year' : 1989}
    Then the JSObject proxy for this object could call:
    String model = (String)myCar.get("model");
    And this would return "Ford".
    
    Example
```
 JSObject document = (JSObject)ctx.get("document");
 
 // Get document title
 String title = document.get("title");
 
 // Since the "title" property is a string, get() returns a String.
 // We could equivalently use
 
 title = document.getString("title");
 
 // Get a grandchild property
 Double titleLength = (Double)document.get("title.length");
 
 // Since length is an integer, it is probably easier to use getInt()
 int titleLengthInt = document.getInt("title.length");
 
 // Get a child object
 JSObject body = (JSObject)document.get("body");
 
 // Since "body" is a Javascript object, it is probably easier to use
 // getObject()
 JSObject body2 = document.getObject("body");
 
 // Get a method as a function object
 JSObject open = (JSObject) document.get("open");
 
 // Call the open() method, with document as "this"
 open.call(document, new Object[]{}); // Takes no parameters
 
 // Equivalently we could have called open via the document object
 document.call("open", new Object[]{});
 
 
```
    Parameters:
    
    key - The name of the property to retrieve on this object.
    
    Returns:
    
    The value of the property specified converted to the appropriate Java value. See @ref JavascriptContext.get() for a table of the Javascript to Java type conversions.
  - getString
```
public String getString(String key)
```
    Deprecated.
    
    Wrapper around get() to return a String.
    
    Parameters:
    
    key - The name of the property in the object to retrieve. Value of this property must be a string.
    
    Returns:
    
    The property value as a string.
  - getInt
```
public int getInt(String key)
```
    Deprecated.
    
    Wrapper around get() to return an int
    
    Parameters:
    
    key - The name of the property in the object to retrieve. Value of this property must be an integer.
    
    Returns:
    
    The property value as an integer.
  - getDouble
```
public double getDouble(String key)
```
    Deprecated.
    
    Wrapper around get() to return a double.
    
    Parameters:
    
    key - The name of the property in the object to retrieve. Value of this property must be a number.
    
    Returns:
    
    The property value as a double.
  - getBoolean
```
public boolean getBoolean(String key)
```
    Deprecated.
    
    Wrapper around get() to return a boolean.
    
    Parameters:
    
    key - The name of the property in the object to retrieve. Value of this property must be a boolean.
    
    Returns:
    
    The property value as a boolean.
  - getObject
```
public JSObject getObject(String key)
```
    Deprecated.
    
    Wrapper around the get() method to return a JSObject.
    
    Parameters:
    
    key - The name of the property in the object to retrieve. Value of this property must be a Javascript object or function.
    
    Returns:
    
    The property value as a JSObject.
  - get
```
public Object get(int index)
```
    Deprecated.
    This method is useful only for JSObjects that encapsulate Javascript arrays. It provides a method to get indexed properties of the array. E.g. to retrieve the 5th element of the wrapped array, you could use this method.
    Example
```
 JSObject colors = ctx.get("['red','green','blue']");
 String red = (String)colors.get(0);
 String green = (String)colors.get(1);
 String blue = (String)colors.get(2);
 
```
    It may be more convenient to use the typed wrapper methods so that you don't have to typecast the values. E.g.
```
 String red = colors.getString(0);
 String green = colors.getString(1);
 String blue = colors.getString(2);
 
```
    Example, looping through array
    JSObject colors = ctx.get("['red','green','blue']"); int len = colors.getInt("length"); for ( int i=0; i< len; i++ ){ System.out.println("Color "+i+" is "+colors.getString(i)); }
    Parameters:
    
    index - The index of the entry within the array to return.
    
    Returns:
    
    The value of the specified indexed element.
  - getString
```
public String getString(int index)
```
    Deprecated.
    
    Wrapper for get(int) for indexed string values.
    
    Parameters:
    
    index - The index within an Array object whose value to retrieve.
    
    Returns:
    
    The value of the indexed element. Must be a String.
  - getInt
```
public int getInt(int index)
```
    Deprecated.
    
    Wrapper for get(int) for indexed int values.
    
    Parameters:
    
    index - The index within the Array object whose value to retrieve.
    
    Returns:
    
    The value of the indexed element. Must be an integer.
  - getDouble
```
public double getDouble(int index)
```
    Deprecated.
    
    Wrapper for get(int) for indexed double values.
    
    Parameters:
    
    index - The index within the Array object whose value to retrieve.
    
    Returns:
    
    The value of the indexed element. Must be a number.
  - getBoolean
```
public boolean getBoolean(int index)
```
    Deprecated.
    
    Wrapper for get(int) for indexed boolean values.
    
    Parameters:
    
    index - The index within the Array object whose value to retrieve.
    
    Returns:
    
    The value of the indexed element. Must be a boolean.
  - getObject
```
public JSObject getObject(int index)
```
    Deprecated.
    
    Wrapper for get(int) for indexed object values.
    
    Parameters:
    
    index - The index within the Array object whose value to retrieve.
    
    Returns:
    
    The value of the indexed element. Must be an Object. (e.g. can be Object, Function, Array, or any other type of Javascript object).
  - set
```
public void set(String key,
                Object js,
                boolean async)
```
    Deprecated.
    
    Sets a property on the underlying Javascript object. Equivalent of this[key] = js;.
    
    Parameters:
    
    key - The name of the property to set on the current object.
    
    js - The value of the property. This value should be provided as a Java value and it will be converted to the appropriate Javascript value. See @ref JavascriptContext.set() for a conversion table of the Java to Javascript type conversions.
    
    async - If this flag is set, then the call will be asynchronous (will not wait for command to complete before continuing execution).
  - set
```
public void set(String key,
                Object js)
```
    Deprecated.
    
    Sets a property on this object. This call is synchronous. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property.
    
    js - A value for the property. This may be a primitive type, a JSObject, or a JSFunction.
    
    See Also:
    
    set(java.lang.String, java.lang.Object, boolean)
  - setInt
```
public void setInt(String key,
                   int value,
                   boolean async)
```
    Deprecated.
    
    Sets a property on this object to an integer value. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The property name to set.
    
    value - The value to assign to the property.
    
    async - True if you want this call to be asynchronous.
  - setInt
```
public void setInt(String key,
                   int value)
```
    Deprecated.
    
    Sets a property on this object to an integer value synchronously. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property to set.
    
    value - The integer value of to set.
  - setDouble
```
public void setDouble(String key,
                      double value,
                      boolean async)
```
    Deprecated.
    
    Sets a property on this object to a double value. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property to set
    
    value - The value to set.
    
    async - True if you want this call to be asynchronous.
  - setDouble
```
public void setDouble(String key,
                      double value)
```
    Deprecated.
    
    Sets a property on this object to a double value synchronously. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property to set
    
    value - The value to set.
  - setBoolean
```
public void setBoolean(String key,
                       boolean value,
                       boolean async)
```
    Deprecated.
    
    Sets a property on this object to a boolean value. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property to set
    
    value - The value to set.
    
    async - True if you want this call to be asynchronous.
  - setBoolean
```
public void setBoolean(String key,
                       boolean value)
```
    Deprecated.
    
    Sets a property on this object to a boolean value synchronously. Equivalent of this[key] = value;.
    
    Parameters:
    
    key - The name of the property to set
    
    value - The value to set.
  - set
```
public void set(int index,
                Object js,
                boolean async)
```
    Deprecated.
    
    Sets an indexed value on this object (assuming this object is a Javascript array). Equivalent of this[index] = js;.
    
    Parameters:
    
    index - The index to set.
    
    js - The object to set. This may be a primitive type, a String, a JSObject, or a JSFunction.
    
    async - True to make this call asynchronously.
  - set
```
public void set(int index,
                Object js)
```
    Deprecated.
    
    Sets an indexed value on this object synchronously (assuming this object is a Javascript array). Equivalent of this[index] = js;.
    
    Parameters:
    
    index - The index to set.
    
    js - The object to set. This may be a primitive type, a String, a JSObject, or a JSFunction.
  - setInt
```
public void setInt(int index,
                   int value,
                   boolean async)
```
    Deprecated.
    
    Sets an indexed value on this array to an integer. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
    
    async - True to make this call asynchronous.
  - setInt
```
public void setInt(int index,
                   int value)
```
    Deprecated.
    
    Sets an indexed value on this array to an integer synchronously. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
  - setDouble
```
public void setDouble(int index,
                      double value,
                      boolean async)
```
    Deprecated.
    
    Sets an indexed value on this array to a double. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
    
    async - True to make this call asynchronous.
  - setDouble
```
public void setDouble(int index,
                      double value)
```
    Deprecated.
    
    Sets an indexed value on this array to a double synchronously. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
  - setBoolean
```
public void setBoolean(int index,
                       boolean value,
                       boolean async)
```
    Deprecated.
    
    Sets an indexed value on this array to a boolean. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
    
    async - True to make this call asynchronous.
  - setBoolean
```
public void setBoolean(int index,
                       boolean value)
```
    Deprecated.
    
    Sets an indexed value on this array to a boolean synchronously. Assumes this object is a Javascript array. Equivalent of this[index] = value;.
    
    Parameters:
    
    index - The index within this array to set.
    
    value - The value to set.
  - toJSPointer
```
public String toJSPointer()
```
    Deprecated.
    
    Returns a Javascript variable name for the underlying Javascript object. This refers to the object inside the JavascriptContext's lookup table.
    
    Returns:
  - call
```
public Object call(String key,
                   Object[] params)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object.
    
    Parameters:
    
    key - The name of the method to call.
    
    params - Array of parameters to pass to the method. These will be converted to corresponding Javascript types according to the translation table specified in JavascriptContext.set(String,Object)
    
    Returns:
    
    The result of calling the method. Javascript return values will be converted to corresponding Java types according to the rules described in JavascriptContext.get(String)
  - callAsync
```
public void callAsync(String key,
                      Object[] params,
                      Callback callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object asynchronously.
    
    Parameters:
    
    key - The name of the method to call.
    
    params - Array of parameters to pass to the method. These will be converted to corresponding Javascript types according to the translation table specified in JavascriptContext.set(String,Object)
    
    callback - Callback to be called when the method call is completed.
  - callAsync
```
public void callAsync(String key,
                      Object[] params,
                      SuccessCallback callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object asynchronously.
    
    Parameters:
    
    key - The name of the method to call.
    
    params - Array of parameters to pass to the method. These will be converted to corresponding Javascript types according to the translation table specified in JavascriptContext.set(String,Object)
    
    callback - Callback to be called when the method call is completed.
  - call
```
public Object call(String key)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object synchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    Returns:
    
    The return value of the method.
  - callAsync
```
public void callAsync(String key,
                      Callback callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object asynchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to be called with the return value.
  - callAsync
```
public void callAsync(String key,
                      SuccessCallback callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object asynchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to be called with the return value.
  - callInt
```
public int callInt(String key)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns an int. Called synchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    Returns:
    
    The return value of the method.
  - callIntAsync
```
public void callIntAsync(String key,
                         Callback<Integer> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns an int. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callIntAsync
```
public void callIntAsync(String key,
                         SuccessCallback<Integer> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns an int. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callDouble
```
public double callDouble(String key)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a double. Called synchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    Returns:
    
    The return value of the method.
  - callDoubleAsync
```
public void callDoubleAsync(String key,
                            Callback<Double> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a double. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callDoubleAsync
```
public void callDoubleAsync(String key,
                            SuccessCallback<Double> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a double. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callString
```
public String callString(String key)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a String. Called synchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    Returns:
    
    The return value of the method.
  - callStringAsync
```
public void callStringAsync(String key,
                            Callback<String> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a String. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callStringAsync
```
public void callStringAsync(String key,
                            SuccessCallback<String> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a String. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callObject
```
public JSObject callObject(String key)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a Javascript object. Called synchronously with no arguments.
    
    Parameters:
    
    key - The name of the method.
    
    Returns:
    
    The return value of the method.
  - callObjectAsync
```
public void callObjectAsync(String key,
                            Callback<JSObject> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a Javascript object. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - callObjectAsync
```
public void callObjectAsync(String key,
                            SuccessCallback<JSObject> callback)
```
    Deprecated.
    
    Calls a method on the underlying Javascript object that returns a Javascript object. Call is asynchronous. Return value or error is passed to the provided callback.
    
    Parameters:
    
    key - The name of the method.
    
    callback - Callback to handle the return value.
  - call
```
public Object call(Object... params)
```
    Deprecated.
    Calls the object as a function statically. In this case "this" will be window.
    E.g.
    JSObject alert = (JSObject)ctx.get("window.alert"); alert.call(new Object[]{"An alert message"});
    The above gets a reference to the alert() function (remember functions are objects in Javascript). Then it calls it via Java, passing it a single string parameter. This is equivalent to the following Javasript:
```
 alert("An alert message");
 
```
    Parameters:
    
    params - The parameters to pass to the function. These will be converted to the appropriate Javascript type.
    
    Returns:
    
    The result of the javascript function call converted to the appropriate Java type.
  - callAsync
```
public void callAsync(Object[] params,
                      Callback callback)
```
    Deprecated.
    Calls the object as a function statically. The call is made asynchronously In this case "this" will be window.
    E.g.
    JSObject alert = (JSObject)ctx.get("window.alert"); alert.call(new Object[]{"An alert message"});
    The above gets a reference to the alert() function (remember functions are objects in Javascript). Then it calls it via Java, passing it a single string parameter. This is equivalent to the following Javasript:
```
 alert("An alert message");
 
```
    Parameters:
    
    params - The parameters to pass to the function. These will be converted to the appropriate Javascript type.
    
    callback - The result of the javascript function call converted to the appropriate Java type and passed to the callback.
  - callAsync
```
public void callAsync(Object[] params,
                      SuccessCallback callback)
```
    Deprecated.
    Calls the object as a function statically. The call is made asynchronously In this case "this" will be window.
    E.g.
    JSObject alert = (JSObject)ctx.get("window.alert"); alert.call(new Object[]{"An alert message"});
    The above gets a reference to the alert() function (remember functions are objects in Javascript). Then it calls it via Java, passing it a single string parameter. This is equivalent to the following Javasript:
```
 alert("An alert message");
 
```
    Parameters:
    
    params - The parameters to pass to the function. These will be converted to the appropriate Javascript type.
    
    callback - The result of the javascript function call converted to the appropriate Java type and passed to the callback.
  - toString
```
public String toString()
```
    Deprecated.
    
    Returns the toString from the JavaScript object effectively the equivalent of callString("toString")
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    the String representation of the JavaScript object

getInt()	Returns int
getString()	Returns String
getDouble()	Returns double
getObject()	Returns JSObject
getBoolean()	Returns boolean

Class JSObject

Getting and Setting Properties

Typed Getters

Indexed Properties

Example, looping through array

Calling Object Methods

Calling Wrapped Functions

Calling Java Methods from Javascript

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

JSObject

Example

Method Detail

get

Example

getString

getInt

getDouble

getBoolean

getObject

get

Example

Example, looping through array

getString

getInt

getDouble

getBoolean

getObject

set

set

setInt

setInt

setDouble

setDouble

setBoolean

setBoolean

set

set

setInt

setInt

setDouble

setDouble

setBoolean

setBoolean

toJSPointer

call

callAsync

callAsync

call

callAsync

callAsync

callInt

callIntAsync

callIntAsync

callDouble

callDoubleAsync

callDoubleAsync

callString

callStringAsync

callStringAsync

callObject

callObjectAsync

callObjectAsync

call

callAsync

callAsync

toString