org.jibx.util

Interface IClass

All Known Implementing Classes:

ClassWrapper

public interface IClass

Interface for class file information. Provides access to class field and method information.

Author:

Dennis M. Sosnoski

Method Summary

Methods

Modifier and Type	Method and Description
IClassItem	getBestMethod(String name, String type, String[] args) Get information for best matching method.
ClassFile	getClassFile() Get class file information.
IClassItem	getDirectField(String name) Get information for field.
IClassItem	getField(String name) Get information for field.
IClassItem[]	getFields() Get all fields of class.
IClassItem	getInitializerMethod(String sig) Get information for initializer.
String[]	getInstanceSigs() Get signatures for all types of which instances of this type are instances.
String[]	getInterfaces() Get names of all interfaces implemented directly by class.
String	getJavaDoc() Get the JavaDoc comment for this class.
IClassLocator	getLocator() Get the locator which provided this class.
IClassItem	getMethod(String name, String sig) Get information for method without respect to potential trailing arguments or return value.
IClassItem	getMethod(String name, String[] sigs) Get information for method matching one of several possible signatures.
IClassItem[]	getMethods() Get all methods of class.
String	getName() Get fully qualified class name.
String	getPackage() Get package name.
String	getSignature() Get signature for class as type.
IClassItem	getStaticMethod(String name, String sig) Get information for static method without respect to return value.
IClass	getSuperClass() Get superclass.
boolean	isAbstract() Check if class is abstract.
boolean	isAccessible(IClassItem item) Check accessible method.
boolean	isAssignable(IClass other) Check if a value of this type can be directly assigned to another type.
boolean	isImplements(String sig) Check if class implements an interface.
boolean	isInterface() Check if class is an interface.
boolean	isModifiable() Check if class is modifiable.
boolean	isSuperclass(String name) Check if another class is a superclass of this one.
Class	loadClass() Load class in executable form.

Method Detail

getClassFile

ClassFile getClassFile()

Get class file information. TODO: eliminate this sucker

Returns:

class file information

getName

String getName()

Get fully qualified class name.

Returns:

fully qualified name for class

getSignature

String getSignature()

Get signature for class as type.

Returns:

signature for class used as type

getPackage

String getPackage()

Get package name.

Returns:

package name for class

getSuperClass

IClass getSuperClass()

Get superclass.

Returns:

superclass information

getInterfaces

String[] getInterfaces()

Get names of all interfaces implemented directly by class.

Returns:

names of all interfaces implemented directly by class (non-null, empty array if none)

getInstanceSigs

String[] getInstanceSigs()

Get signatures for all types of which instances of this type are instances.

Returns:

all signatures supported by instances

isImplements

boolean isImplements(String sig)

Check if class implements an interface.

Parameters:

sig - signature of interface to be checked

Returns:

true if interface is implemented by class, false if not

isAbstract

boolean isAbstract()

Check if class is abstract.

Returns:

true if class is abstract, false if not

isInterface

boolean isInterface()

Check if class is an interface.

Returns:

true if class is an interface, false if not

isModifiable

boolean isModifiable()

Check if class is modifiable.

Returns:

true if class is modifiable, false if not

isSuperclass

boolean isSuperclass(String name)

Check if another class is a superclass of this one.

Parameters:

name - potential superclass to be checked

Returns:

true if named class is a superclass of this one, false if not

getDirectField

IClassItem getDirectField(String name)

Get information for field. This only checks for fields that are actually members of the class (not superclasses). TODO: make this work with both static and member fields

Parameters:

name - field name

Returns:

field information, or null if field not found

getField

IClassItem getField(String name)

Get information for field. If the field is not found directly, superclasses are checked for inherited fields matching the supplied name. TODO: make this work with both static and member fields

Parameters:

name - field name

Returns:

field information, or null if field not found

getBestMethod

IClassItem getBestMethod(String name,
                       String type,
                       String[] args)

Get information for best matching method. This tries to find a method which matches the specified name, return type, and argument types. If an exact match is not found it looks for a method with a return type that is extended or implemented by the specified type and arguments that are extended or implemented by the specified types. If no match is found for this class superclasses are checked. TODO: make this work with both static and member methods

Parameters:

name - method name

type - return value type name (null if indeterminant)

args - argument value type names (null if indeterminant)

Returns:

method information, or null if method not found

getMethod

IClassItem getMethod(String name,
                   String sig)

Get information for method without respect to potential trailing arguments or return value. If the method is not found directly, superclasses are checked for inherited methods matching the supplied name. This compares the supplied partial signature against the actual method signature, and considers it a match if the actual sigature starts with the supplied signature. TODO: make this work with both static and member methods

Parameters:

name - method name

sig - partial method signature to be matched

Returns:

method information, or null if method not found

getMethod

IClassItem getMethod(String name,
                   String[] sigs)

Get information for method matching one of several possible signatures. If a match is not found directly, superclasses are checked for inherited methods matching the supplied name and signatures. The signature variations are checked in the order supplied. TODO: make this work with both static and member methods

Parameters:

name - method name

sigs - possible signatures for method (including return type)

Returns:

method information, or null if method not found

getInitializerMethod

IClassItem getInitializerMethod(String sig)

Get information for initializer. Only the class itself is checked for an initializer matching the argument list signature.

Parameters:

sig - encoded argument list signature

Returns:

method information, or null if method not found

getStaticMethod

IClassItem getStaticMethod(String name,
                         String sig)

Get information for static method without respect to return value. Only the class itself is checked for a method matching the supplied name and argument list signature.

Parameters:

name - method name

sig - encoded argument list signature

Returns:

method information, or null if method not found

isAccessible

boolean isAccessible(IClassItem item)

Check accessible method. Check if a field or method in another class is accessible from within this class.

Parameters:

item - field or method information

Returns:

true if accessible, false if not

isAssignable

boolean isAssignable(IClass other)

Check if a value of this type can be directly assigned to another type. This is basically the equivalent of the instanceof operator.

Parameters:

other - type to be assigned to

Returns:

true if assignable, false if not

loadClass

Class loadClass()

Load class in executable form.

Returns:

loaded class, or null if unable to load

getMethods

IClassItem[] getMethods()

Get all methods of class.

Returns:

methods

getFields

IClassItem[] getFields()

Get all fields of class.

Returns:

fields

getJavaDoc

String getJavaDoc()

Get the JavaDoc comment for this class.

Returns:

comment text, or null if none or no source available

getLocator

IClassLocator getLocator()

Get the locator which provided this class.

Returns:

locator