com.jrockit.memleak.value
Class ClassInfo

java.lang.Object
  com.jrockit.memleak.value.ClassInfo

All Implemented Interfaces:

IAccessibleInfo, IClassInfo, IClassRef, INamedType, IObjectSpecifier, ITypeSpecifier, IModifyOnce

Direct Known Subclasses:

NameMappingCacheFactory.ClassInfoR26

public class ClassInfo
extends java.lang.Object
implements IClassInfo, IObjectSpecifier, IModifyOnce

Representation of a class, including its name, ID, and class loader info.

Author:

Markus Persson

Field Summary

protected java.lang.String

srcFileName Source file name, or null if unknown.

Fields inherited from interface com.jrockit.memleak.IClassInfo

ANNOTATION, CLASS_TYPE_NAME, EMPTY_ARRAY, ENUM

Fields inherited from interface com.jrockit.memleak.IAccessibleInfo

SYNTHETIC, UNKNOWN_MODIFIERS

Fields inherited from interface com.jrockit.memleak.IObjectSpecifier

EMPTY_ARRAY

Constructor Summary

ClassInfo(IMemLeak memleak, int classID, java.lang.String name, int modifiers, int numDeclaredStaticFields, int numInstanceFields, java.lang.String srcFileName, IObjectSpecifier classLoaderSpec)

Method Summary

boolean	equals(java.lang.Object other)
int	getClassId()
IObjectInfo	getClassLoaderInfo(Policy policy) Get the class loader of this class, or null if it is the boot class loader.
IObjectSpecifier	getClassLoaderSpec() Get the class loader of this class, or null if it is the boot class loader.
IObjectInfo	getClassObjectInfo(Policy policy) For implementations with Feature.CLASS_IDS_ARE_OBJECT_IDS this should never return null (when called with a blocking policy).
IObjectSpecifier	getClassObjectSpec() For implementations with Feature.CLASS_IDS_ARE_OBJECT_IDS this should never return null.
int	getModifiers()
java.lang.String	getName() Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this IClassInfo object.
int	getNumDeclaredStaticFields()
int	getNumInstanceFields()
int	getObjectId()
java.lang.String	getSourceFileName() Returns the name of the source file for this class.
int	hashCode()
boolean	isArrayClass()
boolean	isDiscarded()
boolean	overrideDefault(ValueProperty property, java.lang.Object value)
<T> T	select(ITypeResolver<T> resolver) Select the type or types using operations on resolver.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

srcFileName

protected java.lang.String srcFileName

Source file name, or null if unknown.

Constructor Detail

ClassInfo

public ClassInfo(IMemLeak memleak,
                 int classID,
                 java.lang.String name,
                 int modifiers,
                 int numDeclaredStaticFields,
                 int numInstanceFields,
                 java.lang.String srcFileName,
                 IObjectSpecifier classLoaderSpec)

Parameters:

memleak -

classID -

name -

modifiers -

numDeclaredStaticFields -

numInstanceFields -

srcFileName -

classLoaderSpec - or null

Method Detail

getClassId

public int getClassId()

Specified by:

getClassId in interface IClassRef

Returns:

Returns the class ID.

getClassLoaderSpec

public IObjectSpecifier getClassLoaderSpec()

Description copied from interface: IClassInfo

Get the class loader of this class, or null if it is the boot class loader. Implementations without Feature.CLASS_LOADERS may also return null.

Specified by:

getClassLoaderSpec in interface IClassInfo

Returns:

Returns the IObjectSpecifier of the class loader that loaded this class.

getClassLoaderInfo

public IObjectInfo getClassLoaderInfo(Policy policy)
                               throws GarbageCollectedException

Description copied from interface: IClassInfo

Get the class loader of this class, or null if it is the boot class loader. Null may also be returned if the value is not yet available, according to policy. Finally, implementations without Feature.CLASS_LOADERS may also return null.

Specified by:

getClassLoaderInfo in interface IClassInfo

Returns:

Returns the IObjectInfo of the class loader that loaded this class, or null.

Throws:

GarbageCollectedException

getClassObjectSpec

public IObjectSpecifier getClassObjectSpec()

Description copied from interface: IClassInfo

For implementations with Feature.CLASS_IDS_ARE_OBJECT_IDS this should never return null. Other implementations might.

Specified by:

getClassObjectSpec in interface IClassInfo

Returns:

Returns the IObjectSpecifier of the Class instance that corresponds to this class, or null.

getClassObjectInfo

public IObjectInfo getClassObjectInfo(Policy policy)
                               throws GarbageCollectedException

Description copied from interface: IClassInfo

For implementations with Feature.CLASS_IDS_ARE_OBJECT_IDS this should never return null (when called with a blocking policy). Other implementations might.

Specified by:

getClassObjectInfo in interface IClassInfo

Returns:

Returns the IObjectInfo of the Class instance that corresponds to this class, or null.

Throws:

GarbageCollectedException

getName

public java.lang.String getName()

Description copied from interface: IClassInfo

Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this IClassInfo object.

Specified by:

getName in interface IClassInfo

Specified by:

getName in interface INamedType

Returns:

the name of the class represented by this IClassInfo object.

See Also:

Class.getName()

isArrayClass

public boolean isArrayClass()

Specified by:

isArrayClass in interface IClassInfo

Returns:

true of this is an array class, false otherwise.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

select

public <T> T select(ITypeResolver<T> resolver)

Description copied from interface: ITypeSpecifier

Select the type or types using operations on resolver.

NOTE: It is strictly forbidden to keep a reference to the given resolver (including weak references etc.) as well as any type of caching based on values returned from the resolver. Only the resolver itself is capable of determining if results may be cached.

Specified by:

select in interface ITypeSpecifier

Returns:

a resolved type

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getObjectId

public int getObjectId()

Specified by:

getObjectId in interface IObjectSpecifier

Returns:

the ID of this object.

getModifiers

public int getModifiers()

Specified by:

getModifiers in interface IAccessibleInfo

Returns:

access modifiers for the entity

See Also:

Modifier

getSourceFileName

public java.lang.String getSourceFileName()

Description copied from interface: IClassInfo

Returns the name of the source file for this class. Generally, this corresponds to the SourceFile attribute of the relevant class file (as per The Java Virtual Machine Specification, Section 4.7.7).

Specified by:

getSourceFileName in interface IClassInfo

Returns:

the name of the source file, or null if this information is unavailable.

getNumDeclaredStaticFields

public int getNumDeclaredStaticFields()

Specified by:

getNumDeclaredStaticFields in interface IClassInfo

Returns:

the number of declared static fields in this class.

getNumInstanceFields

public int getNumInstanceFields()

Specified by:

getNumInstanceFields in interface IClassInfo

Returns:

the number of instance fields, including all inherited instance fields from super classes.

isDiscarded

public boolean isDiscarded()

Specified by:

isDiscarded in interface IClassInfo

Returns:

true iff the class is known to have been garbage collected.

overrideDefault

public boolean overrideDefault(ValueProperty property,
                               java.lang.Object value)
                        throws java.lang.ClassCastException

Specified by:

overrideDefault in interface IModifyOnce

Returns:

true if the value changed

Throws:

java.lang.ClassCastException