javassist

Class CtMember

java.lang.Object

javassist.CtMember

Direct Known Subclasses:

CtBehavior, CtField

public abstract class CtMember
extends Object

An instance of CtMember represents a field, a constructor, or a method.

Field Summary

Fields

Modifier and Type	Field and Description
protected CtClass	declaringClass

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CtMember(CtClass clazz)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	extendToString(StringBuffer buffer) Invoked by toString() to add to the buffer and provide the complete value.
abstract Object	getAnnotation(Class clz) Returns the annotation if the class has the specified annotation class.
abstract Object[]	getAnnotations() Returns the annotations associated with this member.
abstract byte[]	getAttribute(String name) Obtains a user-defined attribute with the given name.
abstract Object[]	getAvailableAnnotations() Returns the annotations associated with this member.
CtClass	getDeclaringClass() Returns the class that declares this member.
abstract int	getModifiers() Obtains the modifiers of the member.
abstract String	getName() Obtains the name of the member.
abstract String	getSignature() Returns the character string representing the signature of the member.
abstract boolean	hasAnnotation(Class clz) Returns true if the class has the specified annotation class.
abstract void	setAttribute(String name, byte[] data) Adds a user-defined attribute.
abstract void	setModifiers(int mod) Sets the encoded modifiers of the member.
String	toString()
boolean	visibleFrom(CtClass clazz) Returns true if this member is accessible from the given class.

Methods inherited from class java.lang.Object

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

Field Detail

declaringClass

protected CtClass declaringClass

Constructor Detail

CtMember

protected CtMember(CtClass clazz)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

extendToString

protected abstract void extendToString(StringBuffer buffer)

Invoked by toString() to add to the buffer and provide the complete value. Subclasses should invoke this method, adding a space before each token. The modifiers for the member are provided first; subclasses should provide additional data such as return type, field or method name, etc.

getDeclaringClass

public CtClass getDeclaringClass()

Returns the class that declares this member.

visibleFrom

public boolean visibleFrom(CtClass clazz)

Returns true if this member is accessible from the given class.

getModifiers

public abstract int getModifiers()

Obtains the modifiers of the member.

Returns:

modifiers encoded with javassist.Modifier.

See Also:

Modifier

setModifiers

public abstract void setModifiers(int mod)

Sets the encoded modifiers of the member.

See Also:

Modifier

hasAnnotation

public abstract boolean hasAnnotation(Class clz)

Returns true if the class has the specified annotation class.

Parameters:

clz - the annotation class.

Returns:

true if the annotation is found, otherwise false.

Since:

3.11

getAnnotation

public abstract Object getAnnotation(Class clz)
                              throws ClassNotFoundException

Returns the annotation if the class has the specified annotation class. For example, if an annotation @Author is associated with this member, an Author object is returned. The member values can be obtained by calling methods on the Author object.

Parameters:

clz - the annotation class.

Returns:

the annotation if found, otherwise null.

Throws:

ClassNotFoundException

Since:

3.11

getAnnotations

public abstract Object[] getAnnotations()
                                 throws ClassNotFoundException

Returns the annotations associated with this member. For example, if an annotation @Author is associated with this member, the returned array contains an Author object. The member values can be obtained by calling methods on the Author object.

Returns:

an array of annotation-type objects.

Throws:

ClassNotFoundException

See Also:

CtClass.getAnnotations()

getAvailableAnnotations

public abstract Object[] getAvailableAnnotations()

Returns the annotations associated with this member. This method is equivalent to getAnnotations() except that, if any annotations are not on the classpath, they are not included in the returned array.

Returns:

an array of annotation-type objects.

Since:

3.3

See Also:

getAnnotations(), CtClass.getAvailableAnnotations()

getName

public abstract String getName()

Obtains the name of the member.

As for constructor names, see getName() in CtConstructor.

See Also:

CtConstructor.getName()

getSignature

public abstract String getSignature()

Returns the character string representing the signature of the member. If two members have the same signature (parameter types etc.), getSignature() returns the same string.

getAttribute

public abstract byte[] getAttribute(String name)

Obtains a user-defined attribute with the given name. If that attribute is not found in the class file, this method returns null.

Note that an attribute is a data block specified by the class file format. See AttributeInfo.

Parameters:

name - attribute name

setAttribute

public abstract void setAttribute(String name,
                byte[] data)

Adds a user-defined attribute. The attribute is saved in the class file.

Note that an attribute is a data block specified by the class file format. See AttributeInfo.

Parameters:

name - attribute name

data - attribute value