totalcross.lang

Class Class4D<T>

java.lang.Object

totalcross.lang.Class4D<T>

public final class Class4D<T>
extends java.lang.Object

This class contains utility methods that are used to load classes by name and get information about their fields and methods.

IMPORTANT: the totalcross.lang package is the java.lang that will be used in the device. You CANNOT use nor import totalcross.lang package in desktop. When tc.Deploy is called, all references to java.lang are replaced by totalcross.lang automatically. Given this, you must use only the classes and methods that exists BOTH in java.lang and totalcross.lang. For example, you can't use java.lang.ClassLoader because there are no totalcross.lang.ClassLoader. Another example, you can't use java.lang.String.indexOfIgnoreCase because there are no totalcross.lang.String.indexOfIgnoreCase method. Trying to use a class or method from the java.lang package that has no correspondence with totalcross.lang will make the tc.Deploy program to abort, informing where the problem occured. A good idea is to always refer to this javadoc to know what is and what isn't available.

Constructor Summary

Constructors

Constructor and Description
Class4D()

Method Summary

Modifier and Type	Method and Description
T	cast(java.lang.Object obj)
boolean	desiredAssertionStatus()
boolean	equals(java.lang.Object o)
static java.lang.Class<?>	forName(java.lang.String className) The TotalCross deployer can find classes that are instantiated using Class.forName if, and only if, they are String constants.
java.lang.String	getCanonicalName()
java.lang.Class<?>	getComponentType()
java.lang.reflect.Constructor<?>	getConstructor(java.lang.Class<?>[] parameterTypes)
java.lang.reflect.Constructor<?>[]	getConstructors()
java.lang.reflect.Constructor<?>	getDeclaredConstructor(java.lang.Class<?>[] parameterTypes)
java.lang.reflect.Constructor<?>[]	getDeclaredConstructors()
java.lang.reflect.Field	getDeclaredField(java.lang.String name)
java.lang.reflect.Field[]	getDeclaredFields()
java.lang.reflect.Method	getDeclaredMethod(java.lang.String name, java.lang.Class<?>[] parameterTypes)
java.lang.reflect.Method[]	getDeclaredMethods()
T[]	getEnumConstants() Returns the enumeration constants of this class, or null if this class is not an Enum.
java.lang.reflect.Field	getField(java.lang.String name)
java.lang.reflect.Field[]	getFields()
java.lang.Class<?>[]	getInterfaces()
java.lang.reflect.Method	getMethod(java.lang.String name, java.lang.Class<?>[] parameterTypes)
java.lang.reflect.Method[]	getMethods()
int	getModifiers()
java.lang.String	getName() Returns the fully qualified name of this class.
java.lang.Object[]	getSigners()
java.lang.String	getSimpleName()
java.lang.Class<?>	getSuperclass()
boolean	isArray()
boolean	isAssignableFrom(java.lang.Class<?> cls)
boolean	isInstance(java.lang.Object obj) Returns true if the given object is an instance of this class.
boolean	isInterface()
boolean	isPrimitive()
java.lang.Object	newInstance() Creates a new instance of this class.
java.lang.String	toString() Returns the fully qualified name of this class.

Methods inherited from class java.lang.Object

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

Constructor Detail

Class4D

public Class4D()

Method Detail

forName

public static java.lang.Class<?> forName(java.lang.String className)
                                  throws java.lang.ClassNotFoundException

The TotalCross deployer can find classes that are instantiated using Class.forName if, and only if, they are String constants. If you build the className dynamically, then you must include the file passing it to the tc.Deploy application (the deployer will warn you about that).

Throws:

java.lang.ClassNotFoundException

See Also:

Vm.attachLibrary(java.lang.String)

newInstance

public java.lang.Object newInstance()
                             throws java.lang.InstantiationException,
                                    java.lang.IllegalAccessException

Creates a new instance of this class. The class must have a default and public constructor (E.G.: public MyClass())

Throws:

java.lang.InstantiationException - If you try to instantiate an interface, abstract class or array

java.lang.IllegalAccessException - If you try to instantiate a private class

isInstance

public boolean isInstance(java.lang.Object obj)

Returns true if the given object is an instance of this class.

getName

public java.lang.String getName()

Returns the fully qualified name of this class.

getCanonicalName

public java.lang.String getCanonicalName()

toString

public java.lang.String toString()

Returns the fully qualified name of this class.

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

getEnumConstants

public T[] getEnumConstants()

Returns the enumeration constants of this class, or null if this class is not an Enum.

Returns:

an array of Enum constants associated with this class, or null if this class is not an enum.

Since:

1.5

getSimpleName

public java.lang.String getSimpleName()

cast

public T cast(java.lang.Object obj)

isAssignableFrom

public boolean isAssignableFrom(java.lang.Class<?> cls)

isInterface

public boolean isInterface()

isArray

public boolean isArray()

isPrimitive

public boolean isPrimitive()

getSuperclass

public java.lang.Class<?> getSuperclass()

getInterfaces

public java.lang.Class<?>[] getInterfaces()

getComponentType

public java.lang.Class<?> getComponentType()

getModifiers

public int getModifiers()

getSigners

public java.lang.Object[] getSigners()

getFields

public java.lang.reflect.Field[] getFields()
                                    throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getMethods

public java.lang.reflect.Method[] getMethods()
                                      throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getConstructors

public java.lang.reflect.Constructor<?>[] getConstructors()
                                                   throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getField

public java.lang.reflect.Field getField(java.lang.String name)
                                 throws java.lang.NoSuchFieldException,
                                        java.lang.SecurityException

Throws:

java.lang.NoSuchFieldException

java.lang.SecurityException

getMethod

public java.lang.reflect.Method getMethod(java.lang.String name,
                                          java.lang.Class<?>[] parameterTypes)
                                   throws java.lang.NoSuchMethodException,
                                          java.lang.SecurityException

Throws:

java.lang.NoSuchMethodException

java.lang.SecurityException

getConstructor

public java.lang.reflect.Constructor<?> getConstructor(java.lang.Class<?>[] parameterTypes)
                                                throws java.lang.NoSuchMethodException,
                                                       java.lang.SecurityException

Throws:

java.lang.NoSuchMethodException

java.lang.SecurityException

getDeclaredFields

public java.lang.reflect.Field[] getDeclaredFields()
                                            throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getDeclaredMethods

public java.lang.reflect.Method[] getDeclaredMethods()
                                              throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getDeclaredConstructors

public java.lang.reflect.Constructor<?>[] getDeclaredConstructors()
                                                           throws java.lang.SecurityException

Throws:

java.lang.SecurityException

getDeclaredField

public java.lang.reflect.Field getDeclaredField(java.lang.String name)
                                         throws java.lang.NoSuchFieldException,
                                                java.lang.SecurityException

Throws:

java.lang.NoSuchFieldException

java.lang.SecurityException

getDeclaredMethod

public java.lang.reflect.Method getDeclaredMethod(java.lang.String name,
                                                  java.lang.Class<?>[] parameterTypes)
                                           throws java.lang.NoSuchMethodException,
                                                  java.lang.SecurityException

Throws:

java.lang.NoSuchMethodException

java.lang.SecurityException

getDeclaredConstructor

public java.lang.reflect.Constructor<?> getDeclaredConstructor(java.lang.Class<?>[] parameterTypes)
                                                        throws java.lang.NoSuchMethodException,
                                                               java.lang.SecurityException

Throws:

java.lang.NoSuchMethodException

java.lang.SecurityException

desiredAssertionStatus

public boolean desiredAssertionStatus()