JsValue (GWT 2.7.0)

java.lang.Object
- com.google.gwt.dev.shell.JsValue

Direct Known Subclasses:

JsValueOOPHM
```
public abstract class JsValue
extends Object
```
Represents a JavaScript value. Note that in general the various get*() methods will return platform-independent values only if the corresponding is*() method returns true. In some cases, an IllegalStateException may be thrown if the JavaScript value is not of the appropriate type or bogus values may be returned. Note that getString will try very hard to return a reasonable result for any value, but it is intended only for human consumption and the exact format for anything besides a string value cannot be relied upon.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static interface`	`JsValue.DispatchMethod` Provides interface for methods to be exposed on JavaScript side.
`static interface`	`JsValue.DispatchObject` Provides interface for objects to be exposed on JavaScript side.

Constructor Summary

Constructors
Constructor and Description

JsValue()

Constructors
Constructor and Description
`JsValue()`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`abstract boolean`	`getBoolean()` Get the value of the object as a boolean.
`abstract int`	`getInt()` Get the value of the object as an integer.
`abstract JsValue.DispatchObject`	`getJavaObjectWrapper()` Get the wrapper object for a wrapped Java object.
`abstract int`	`getJavaScriptObjectPointer()` Returns a unique value corresponding to the underlying JavaScript object.
`abstract double`	`getNumber()` Get the value of the object as a double.
`abstract String`	`getString()` Get the value of the object as a string.
`abstract String`	`getTypeString()` Returns a human-readable string describing the type of the JS object.
`abstract JsValue.DispatchMethod`	`getWrappedJavaFunction()` Returns a wrapped Java method.
`abstract Object`	`getWrappedJavaObject()` Unwrap a wrapped Java object.
`abstract boolean`	`isBoolean()` Returns true if the JS value is a boolean.
`abstract boolean`	`isInt()` Returns true if getInt() can be used on this value.
`abstract boolean`	`isJavaScriptObject()` Returns true if the JS value is a native JS object.
`abstract boolean`	`isNull()` Returns true if the JS value is null.
`abstract boolean`	`isNumber()` Returns true if the JS value is a numeric type.
`abstract boolean`	`isString()` Returns true if the JS value is a string.
`abstract boolean`	`isUndefined()` Returns true if the JS value is undefined (void).
`abstract boolean`	`isWrappedJavaFunction()` Returns true if the JS value contains a wrapped Java method.
`abstract boolean`	`isWrappedJavaObject()` Returns true if the JS value is a wrapped Java object.
`abstract void`	`setBoolean(boolean val)` Sets the JS object to be a boolean value.
`abstract void`	`setByte(byte val)` Sets the JS object to be a number, passed as an byte.
`abstract void`	`setChar(char val)` Sets the JS object to be a number, passed as a char.
`abstract void`	`setDouble(double val)` Sets the JS object to be a number, passed as a double.
`abstract void`	`setInt(int val)` Sets the JS object to be a number, passed as an int.
`abstract void`	`setNull()` Set the JS object to be null.
`abstract void`	`setShort(short val)` Sets the JS object to be a number, passed as a short.
`abstract void`	`setString(String val)` Set the JS object to the supplied string.
`abstract void`	`setUndefined()` Set the JS object to be undefined (void).
`abstract void`	`setValue(JsValue other)` Make this JsValue refer to the same underlying object as another JsValue.
`abstract <T> void`	`setWrappedJavaObject(CompilingClassLoader cl, T val)` Set the JS object to the supplied object, which will be wrapped in a platform-dependent JavaScript class.
`String`	`toString()` Produce a string representation of the JsValue.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode

- Constructor Detail
  - JsValue
```
public JsValue()
```
- Method Detail
  - getBoolean
```
public abstract boolean getBoolean()
```
    Get the value of the object as a boolean. May attempt to convert the value to a boolean if it is not a boolean.
    
    Returns:
    
    the value of the underlying object as a boolean
  - getInt
```
public abstract int getInt()
```
    Get the value of the object as an integer. May attempt to convert the value to an integer if it is not an integer.
    
    Returns:
    
    the value of the underlying object as an int
  - getJavaObjectWrapper
```
public abstract JsValue.DispatchObject getJavaObjectWrapper()
```
    Get the wrapper object for a wrapped Java object. Only valid if isWrappedJavaObject() is true.
    
    Returns:
    
    the Java object wrapper
  - getJavaScriptObjectPointer
```
public abstract int getJavaScriptObjectPointer()
```
    Returns a unique value corresponding to the underlying JavaScript object. In general, two different JsValues will return the same value IFF the underlying JavaScript objects are identical (===).
    
    Returns:
    
    a unique number corresponding to the underlying object, or 0 if isJavaScriptObject() is false
  - getNumber
```
public abstract double getNumber()
```
    Get the value of the object as a double. May attempt to convert the value to a double if it is not a double.
    
    Returns:
    
    the value of the underlying object as a double
  - getString
```
public abstract String getString()
```
    Get the value of the object as a string. Will coerce the underlying type to a string, but stable cross-platform behavior is only guaranteed when isString() is true.
    
    Returns:
    
    the value of the underlying object as a string
  - getTypeString
```
public abstract String getTypeString()
```
    Returns a human-readable string describing the type of the JS object. This is intended only for human consumption and may vary across platforms.
  - getWrappedJavaFunction
```
public abstract JsValue.DispatchMethod getWrappedJavaFunction()
```
    Returns a wrapped Java method.
  - getWrappedJavaObject
```
public abstract Object getWrappedJavaObject()
```
    Unwrap a wrapped Java object.
    
    Returns:
    
    the original Java object wrapped in this JS object
  - isBoolean
```
public abstract boolean isBoolean()
```
    Returns true if the JS value is a boolean.
  - isInt
```
public abstract boolean isInt()
```
    Returns true if getInt() can be used on this value.
  - isJavaScriptObject
```
public abstract boolean isJavaScriptObject()
```
    Returns true if the JS value is a native JS object.
  - isNull
```
public abstract boolean isNull()
```
    Returns true if the JS value is null.
  - isNumber
```
public abstract boolean isNumber()
```
    Returns true if the JS value is a numeric type.
  - isString
```
public abstract boolean isString()
```
    Returns true if the JS value is a string.
  - isUndefined
```
public abstract boolean isUndefined()
```
    Returns true if the JS value is undefined (void).
  - isWrappedJavaFunction
```
public abstract boolean isWrappedJavaFunction()
```
    Returns true if the JS value contains a wrapped Java method.
  - isWrappedJavaObject
```
public abstract boolean isWrappedJavaObject()
```
    Returns true if the JS value is a wrapped Java object.
  - setBoolean
```
public abstract void setBoolean(boolean val)
```
    Sets the JS object to be a boolean value.
    
    Parameters:
    
    val - the boolean value to set
  - setByte
```
public abstract void setByte(byte val)
```
    Sets the JS object to be a number, passed as an byte.
    
    Parameters:
    
    val - the value to store
  - setChar
```
public abstract void setChar(char val)
```
    Sets the JS object to be a number, passed as a char.
    
    Parameters:
    
    val - the value to store
  - setDouble
```
public abstract void setDouble(double val)
```
    Sets the JS object to be a number, passed as a double.
    
    Parameters:
    
    val - the value to store
  - setInt
```
public abstract void setInt(int val)
```
    Sets the JS object to be a number, passed as an int.
    
    Parameters:
    
    val - the value to store
  - setNull
```
public abstract void setNull()
```
    Set the JS object to be null.
    
    Throws:
    
    HostedModeException
  - setShort
```
public abstract void setShort(short val)
```
    Sets the JS object to be a number, passed as a short.
    
    Parameters:
    
    val - the value to store
  - setString
```
public abstract void setString(String val)
```
    Set the JS object to the supplied string.
    
    Parameters:
    
    val - the string to put in the JS object
    
    Throws:
    
    HostedModeException - on JS allocation failures
  - setUndefined
```
public abstract void setUndefined()
```
    Set the JS object to be undefined (void).
    
    Throws:
    
    HostedModeException - on JS allocation failures
  - setValue
```
public abstract void setValue(JsValue other)
```
    Make this JsValue refer to the same underlying object as another JsValue.
    
    Parameters:
    
    other - JsValue to copy JS object from
  - setWrappedJavaObject
```
public abstract <T> void setWrappedJavaObject(CompilingClassLoader cl,
                                              T val)
```
    Set the JS object to the supplied object, which will be wrapped in a platform-dependent JavaScript class.
    
    Type Parameters:
    
    T - the type of the Java object to wrap
    
    Parameters:
    
    cl - the classloader to create the wrapper object with
    
    val - the Java object to wrap
    
    Throws:
    
    HostedModeException
  - toString
```
public String toString()
```
    Produce a string representation of the JsValue.
    
    Overrides:
    
    toString in class Object

Class JsValue

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

JsValue

Method Detail

getBoolean

getInt

getJavaObjectWrapper

getJavaScriptObjectPointer

getNumber

getString

getTypeString

getWrappedJavaFunction

getWrappedJavaObject

isBoolean

isInt

isJavaScriptObject

isNull

isNumber

isString

isUndefined

isWrappedJavaFunction

isWrappedJavaObject

setBoolean

setByte

setChar

setDouble

setInt

setNull

setShort

setString

setUndefined

setValue

setWrappedJavaObject

toString