Class ObjectType

java.lang.Object

org.apache.bcel.generic.Type

org.apache.bcel.generic.ReferenceType

org.apache.bcel.generic.ObjectType

public class ObjectType
extends ReferenceType

Denotes reference such as String.

Field Summary

Fields inherited from class Type

BOOLEAN, BYTE, CHAR, CLASS, DOUBLE, FLOAT, INT, LONG, NO_ARGS, NULL, OBJECT, SHORT, signature, STRING, STRINGBUFFER, THROWABLE, type, UNKNOWN, VOID

Modifier and Type	Field	Description
static final BasicType	BOOLEAN	Predefined constant for boolean type.
static final BasicType	BYTE	Predefined constant for byte type.
static final BasicType	CHAR	Predefined constant for char type.
static final ObjectType	CLASS	Predefined constant for Class type.
static final BasicType	DOUBLE	Predefined constant for double type.
static final BasicType	FLOAT	Predefined constant for float type.
static final BasicType	INT	Predefined constant for int type.
static final BasicType	LONG	Predefined constant for long type.
static final Type[]	NO_ARGS	Empty array.
static final ReferenceType	NULL	Predefined constant for null type.
static final ObjectType	OBJECT	Predefined constant for Object type.
static final BasicType	SHORT	Predefined constant for short type.
protected String	signature	Deprecated. (since 6.0) will be made private; do not access directly, use getter/setter
static final ObjectType	STRING	Predefined constant for String type.
static final ObjectType	STRINGBUFFER	Predefined constant for StringBuffer type.
static final ObjectType	THROWABLE	Predefined constant for Throwable type.
protected byte	type	Deprecated. (since 6.0) will be made private; do not access directly, use getter/setter
static final Type	UNKNOWN	Predefined constant for unknown type.
static final BasicType	VOID	Predefined constants

Constructor Summary

Constructors

Constructor	Description
ObjectType(String className)	Constructs a new instance.

Method Summary

Modifier and Type	Method	Description
boolean	accessibleTo(ObjectType accessor)	Java Virtual Machine Specification edition 2, 5.4.4 Access Control.
boolean	equals(Object type)
String	getClassName()	Gets the name of the referenced class.
static ObjectType	getInstance(String className)	Gets a new instance.
int	hashCode()	Gets the hash code.
boolean	referencesClass()	Deprecated. (since 6.0) this method returns an inaccurate result if the class or interface referenced cannot be found: use referencesClassExact() instead
boolean	referencesClassExact()	Return true if this type references a class, false if it references an interface.
boolean	referencesInterface()	Deprecated. (since 6.0) this method returns an inaccurate result if the class or interface referenced cannot be found: use referencesInterfaceExact() instead
boolean	referencesInterfaceExact()	Return true if this type references an interface, false if it references a class.
boolean	subclassOf(ObjectType superclass)	Return true if this type is a subclass of given ObjectType.
String	toString()	Return the string representation of this type.

Methods inherited from class ReferenceType

firstCommonSuperclass, getFirstCommonSuperclass, isAssignmentCompatibleWith, isCastableTo

Modifier and Type	Method	Description
ReferenceType	firstCommonSuperclass(ReferenceType t)	Deprecated. Use getFirstCommonSuperclass(ReferenceType t) which has slightly changed semantics.
ReferenceType	getFirstCommonSuperclass(ReferenceType t)	Gets the first common superclass (narrowest ReferenceType referencing a class, not an interface).
boolean	isAssignmentCompatibleWith(Type t)	Tests whether this type is assignment compatible with another type t as defined in the JVM specification; see the AASTORE definition there.
boolean	isCastableTo(Type t)	Tests whether this type is castable to another type t as defined in the JVM specification.

Methods inherited from class Type

getArgumentTypes, getMethodSignature, getReturnType, getSignature, getSignature, getSize, getType, getType, getType, getTypes, normalizeForStackOrLocal

Modifier and Type	Method	Description
static Type[]	getArgumentTypes(String signature)	Gets the argument types of a method from its signature as an array of Type objects.
static String	getMethodSignature(Type returnType, Type[] argTypes)	Gets the Java method signature for the given types, for example, int[] f(java.lang.String x) becomes (Ljava/lang/String;)[I.
static Type	getReturnType(String signature)	Gets the return type of a method from its signature as a Type object.
String	getSignature()	Gets the signature for this type.
static String	getSignature(Method meth)	Gets the signature for a method.
int	getSize()	Gets the stack size of this type.
byte	getType()	Gets the type as defined in Constants.
static Type	getType(Class<?> cls)	Gets the BCEL Type object corresponding to a runtime Class.
static Type	getType(String signature)	Gets the Type object corresponding to a signature.
static Type[]	getTypes(Class<?>[] classes)	Gets the BCEL Type objects corresponding to an array of runtime classes.
Type	normalizeForStackOrLocal()	boolean, short and char variable are considered as int in the stack or local variable area.

Methods inherited from class Object

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

Constructor Details

ObjectType

public ObjectType(String className)

Constructs a new instance.

Parameters:

className - fully qualified class name, for example String.

Method Details

getInstance

public static ObjectType getInstance(String className)

Gets a new instance.

Parameters:

className - fully qualified class name, for example String.

Returns:

A new instance.

Since:

6.0

accessibleTo

public boolean accessibleTo(ObjectType accessor)
                     throws ClassNotFoundException

Java Virtual Machine Specification edition 2, 5.4.4 Access Control.

Parameters:

accessor - The accessing type.

Returns:

true if accessible.

Throws:

ClassNotFoundException - Thrown if the class referenced by this type can't be found.

equals

public boolean equals(Object type)

Overrides:

equals in class Type

Returns:

true if both type objects refer to the same class.

getClassName

public String getClassName()

Gets the name of the referenced class.

Overrides:

getClassName in class Type

Returns:

name of referenced class.

hashCode

public int hashCode()

Gets the hash code.

Overrides:

hashCode in class Type

Returns:

A hash code value for the object.

referencesClass

@Deprecated
public boolean referencesClass()

Deprecated.

(since 6.0) this method returns an inaccurate result if the class or interface referenced cannot be found: use referencesClassExact() instead

If "this" doesn't reference a class, it references an interface or a nonexistent entity.

Returns:

true if it references a class, false otherwise.

referencesClassExact

public boolean referencesClassExact()
                             throws ClassNotFoundException

Return true if this type references a class, false if it references an interface.

Returns:

true if the type references a class, false if it references an interface.

Throws:

ClassNotFoundException - Thrown if the class or interface referenced by this type can't be found

referencesInterface

@Deprecated
public boolean referencesInterface()

Deprecated.

(since 6.0) this method returns an inaccurate result if the class or interface referenced cannot be found: use referencesInterfaceExact() instead

If "this" doesn't reference an interface, it references a class or a nonexistent entity.

Returns:

true if it references an interface, false otherwise.

referencesInterfaceExact

public boolean referencesInterfaceExact()
                                 throws ClassNotFoundException

Return true if this type references an interface, false if it references a class.

Returns:

true if the type references an interface, false if it references a class.

Throws:

ClassNotFoundException - Thrown if the class or interface referenced by this type can't be found

subclassOf

public boolean subclassOf(ObjectType superclass)
                   throws ClassNotFoundException

Return true if this type is a subclass of given ObjectType.

Parameters:

superclass - The superclass to check against.

Returns:

true if this is a subclass.

Throws:

ClassNotFoundException - Thrown if any of this class's superclasses can't be found.

toString

public String toString()

Return the string representation of this type.

Overrides:

toString in class Type

Returns:

the string representation of this type.

Since:

6.14.0