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Modifier

public class Modifier
extends Object

java.lang.Object
   ↳ java.lang.reflect.Modifier


The Modifier class provides static methods and constants to decode class and member access modifiers. The sets of modifiers are represented as integers with distinct bit positions representing different modifiers. The values for the constants representing the modifiers are taken from the tables in sections 4.1, 4.4, 4.5, and 4.7 of The Java™ Virtual Machine Specification.

See also:

Summary

Constants

int ABSTRACT

The int value representing the abstract modifier.

int FINAL

The int value representing the final modifier.

int INTERFACE

The int value representing the interface modifier.

int NATIVE

The int value representing the native modifier.

int PRIVATE

The int value representing the private modifier.

int PROTECTED

The int value representing the protected modifier.

int PUBLIC

The int value representing the public modifier.

int STATIC

The int value representing the static modifier.

int STRICT

The int value representing the strictfp modifier.

int SYNCHRONIZED

The int value representing the synchronized modifier.

int TRANSIENT

The int value representing the transient modifier.

int VOLATILE

The int value representing the volatile modifier.

Public constructors

Modifier()

Public methods

static int classModifiers()

Return an int value OR-ing together the source language modifiers that can be applied to a class.

static int constructorModifiers()

Return an int value OR-ing together the source language modifiers that can be applied to a constructor.

static int fieldModifiers()

Return an int value OR-ing together the source language modifiers that can be applied to a field.

static int interfaceModifiers()

Return an int value OR-ing together the source language modifiers that can be applied to an interface.

static boolean isAbstract(int mod)

Return true if the integer argument includes the abstract modifier, false otherwise.

static boolean isFinal(int mod)

Return true if the integer argument includes the final modifier, false otherwise.

static boolean isInterface(int mod)

Return true if the integer argument includes the interface modifier, false otherwise.

static boolean isNative(int mod)

Return true if the integer argument includes the native modifier, false otherwise.

static boolean isPrivate(int mod)

Return true if the integer argument includes the private modifier, false otherwise.

static boolean isProtected(int mod)

Return true if the integer argument includes the protected modifier, false otherwise.

static boolean isPublic(int mod)

Return true if the integer argument includes the public modifier, false otherwise.

static boolean isStatic(int mod)

Return true if the integer argument includes the static modifier, false otherwise.

static boolean isStrict(int mod)

Return true if the integer argument includes the strictfp modifier, false otherwise.

static boolean isSynchronized(int mod)

Return true if the integer argument includes the synchronized modifier, false otherwise.

static boolean isTransient(int mod)

Return true if the integer argument includes the transient modifier, false otherwise.

static boolean isVolatile(int mod)

Return true if the integer argument includes the volatile modifier, false otherwise.

static int methodModifiers()

Return an int value OR-ing together the source language modifiers that can be applied to a method.

static String toString(int mod)

Return a string describing the access modifier flags in the specified modifier.

Inherited methods

From class java.lang.Object

Constants

ABSTRACT

Added in API level 1
int ABSTRACT

The int value representing the abstract modifier.

Constant Value: 1024 (0x00000400)

FINAL

Added in API level 1
int FINAL

The int value representing the final modifier.

Constant Value: 16 (0x00000010)

INTERFACE

Added in API level 1
int INTERFACE

The int value representing the interface modifier.

Constant Value: 512 (0x00000200)

NATIVE

Added in API level 1
int NATIVE

The int value representing the native modifier.

Constant Value: 256 (0x00000100)

PRIVATE

Added in API level 1
int PRIVATE

The int value representing the private modifier.

Constant Value: 2 (0x00000002)

PROTECTED

Added in API level 1
int PROTECTED

The int value representing the protected modifier.

Constant Value: 4 (0x00000004)

PUBLIC

Added in API level 1
int PUBLIC

The int value representing the public modifier.

Constant Value: 1 (0x00000001)

STATIC

Added in API level 1
int STATIC

The int value representing the static modifier.

Constant Value: 8 (0x00000008)

STRICT

Added in API level 1
int STRICT

The int value representing the strictfp modifier.

Constant Value: 2048 (0x00000800)

SYNCHRONIZED

Added in API level 1
int SYNCHRONIZED

The int value representing the synchronized modifier.

Constant Value: 32 (0x00000020)

TRANSIENT

Added in API level 1
int TRANSIENT

The int value representing the transient modifier.

Constant Value: 128 (0x00000080)

VOLATILE

Added in API level 1
int VOLATILE

The int value representing the volatile modifier.

Constant Value: 64 (0x00000040)

Public constructors

Modifier

Added in API level 1
Modifier ()

Public methods

classModifiers

Added in API level 19
int classModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a class.

Returns
int an int value OR-ing together the source language modifiers that can be applied to a class.

constructorModifiers

Added in API level 19
int constructorModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a constructor.

Returns
int an int value OR-ing together the source language modifiers that can be applied to a constructor.

fieldModifiers

Added in API level 19
int fieldModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a field.

Returns
int an int value OR-ing together the source language modifiers that can be applied to a field.

interfaceModifiers

Added in API level 19
int interfaceModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to an interface.

Returns
int an int value OR-ing together the source language modifiers that can be applied to an inteface.

isAbstract

Added in API level 1
boolean isAbstract (int mod)

Return true if the integer argument includes the abstract modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the abstract modifier; false otherwise.

isFinal

Added in API level 1
boolean isFinal (int mod)

Return true if the integer argument includes the final modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the final modifier; false otherwise.

isInterface

Added in API level 1
boolean isInterface (int mod)

Return true if the integer argument includes the interface modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the interface modifier; false otherwise.

isNative

Added in API level 1
boolean isNative (int mod)

Return true if the integer argument includes the native modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the native modifier; false otherwise.

isPrivate

Added in API level 1
boolean isPrivate (int mod)

Return true if the integer argument includes the private modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the private modifier; false otherwise.

isProtected

Added in API level 1
boolean isProtected (int mod)

Return true if the integer argument includes the protected modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the protected modifier; false otherwise.

isPublic

Added in API level 1
boolean isPublic (int mod)

Return true if the integer argument includes the public modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the public modifier; false otherwise.

isStatic

Added in API level 1
boolean isStatic (int mod)

Return true if the integer argument includes the static modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the static modifier; false otherwise.

isStrict

Added in API level 1
boolean isStrict (int mod)

Return true if the integer argument includes the strictfp modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the strictfp modifier; false otherwise.

isSynchronized

Added in API level 1
boolean isSynchronized (int mod)

Return true if the integer argument includes the synchronized modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the synchronized modifier; false otherwise.

isTransient

Added in API level 1
boolean isTransient (int mod)

Return true if the integer argument includes the transient modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the transient modifier; false otherwise.

isVolatile

Added in API level 1
boolean isVolatile (int mod)

Return true if the integer argument includes the volatile modifier, false otherwise.

Parameters
mod int: a set of modifiers
Returns
boolean true if mod includes the volatile modifier; false otherwise.

methodModifiers

Added in API level 19
int methodModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a method.

Returns
int an int value OR-ing together the source language modifiers that can be applied to a method.

toString

Added in API level 1
String toString (int mod)

Return a string describing the access modifier flags in the specified modifier. For example:

    public final synchronized strictfp
 
The modifier names are returned in an order consistent with the suggested modifier orderings given in sections 8.1.1, 8.3.1, 8.4.3, 8.8.3, and 9.1.1 of The Java™ Language Specification. The full modifier ordering used by this method is:
public protected private abstract static final transient volatile synchronized native strictfp interface
The interface modifier discussed in this class is not a true modifier in the Java language and it appears after all other modifiers listed by this method. This method may return a string of modifiers that are not valid modifiers of a Java entity; in other words, no checking is done on the possible validity of the combination of modifiers represented by the input. Note that to perform such checking for a known kind of entity, such as a constructor or method, first AND the argument of toString with the appropriate mask from a method like constructorModifiers() or methodModifiers().

Parameters
mod int: a set of modifiers
Returns
String a string representation of the set of modifiers represented by mod
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