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Java Source Code / Java Documentation » IDE Eclipse » jdt » org.eclipse.jdt.core

Source Cross Reference Class Diagram Java Document (Java Doc)

org.eclipse.jdt.core .IClassFile

All known Subclasses:   org.eclipse.jdt.internal.core .ClassFile,
IClassFile
public interface IClassFile extends ITypeRoot(Code)
Represents an entire binary type (single .class file). A class file has a single child of type IType. Class file elements need to be opened before they can be navigated. If a class file cannot be parsed, its structure remains unknown. Use IJavaElement.isStructureKnown to determine whether this is the case.
Note: IClassFile extends ISourceReference. Source can be obtained for a class file if and only if source has been attached to this class file. The source associated with a class file is the source code of the compilation unit it was (nominally) generated from.

This interface is not intended to be implemented by clients.

See Also:   IPackageFragmentRoot.attachSource(org.eclipse.core.runtime.IPathorg.eclipse.core.runtime.IPathIProgressMonitor)

Method Summary
ICompilationUnit becomeWorkingCopy(IProblemRequestor problemRequestor, WorkingCopyOwner owner, IProgressMonitor monitor)
     Changes this class file handle into a working copy.
byte[] getBytes()
     Returns the bytes contained in this class file.
IType getType()
     Returns the type contained in this class file. This is a handle-only method.
IJavaElement getWorkingCopy(IProgressMonitor monitor, IBufferFactory factory)
     Returns a working copy on the source associated with this class file using the given factory to create the buffer, or null if there is no source associated with the class file.
The buffer will be automatically initialized with the source of the class file upon creation.
The only valid operations on this working copy are getBuffer() or getOriginalElement.
Parameters:
  monitor - a progress monitor used to report progress while opening this compilation unitor null if no progress should be reported
Parameters:
  factory - the factory that creates a buffer that is used to get the content of the working copyor null if the internal factory should be used a a working copy on the source associated with this class file
exception:
  JavaModelException - if the source of this class file cannot be determined.
boolean isClass()
     Returns whether this type represents a class.
boolean isInterface()
     Returns whether this type represents an interface.

Method Detail
becomeWorkingCopy
ICompilationUnit becomeWorkingCopy(IProblemRequestor problemRequestor, WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException(Code)
Changes this class file handle into a working copy. A new IBuffer is created using the given owner. Uses the primary owner if null is specified.
When switching to working copy mode, problems are reported to the given IProblemRequestor . Note that once in working copy mode, the given IProblemRequestor is ignored. Only the original IProblemRequestor is used to report subsequent problems.

Once in working copy mode, changes to this working copy or its children are done in memory. Only the new buffer is affected.

Using ICompilationUnit.commitWorkingCopy(booleanIProgressMonitor) on the working copy will throw a JavaModelException as a class file is implicetly read-only.

If this class file was already in working copy mode, an internal counter is incremented and no other action is taken on this working copy. To bring this working copy back into the original mode (where it reflects the underlying resource), ICompilationUnit.discardWorkingCopy must be call as many times as IClassFile.becomeWorkingCopy(IProblemRequestor,WorkingCopyOwner,IProgressMonitor) .

The primary compilation unit of a class file's working copy does not exist if the class file is not in working copy mode (classFileWorkingCopy.getPrimary().exists() == false).

The resource of a class file's working copy is null if the class file is in an external jar file.

Parameters:
  problemRequestor - a requestor which will get notified of problems detected duringreconciling as they are discovered. The requestor can be set to null indicatingthat the client is not interested in problems.
Parameters:
  owner - the given WorkingCopyOwner, or null for the primary owner
Parameters:
  monitor - a progress monitor used to report progress while opening this compilation unitor null if no progress should be reported a working copy for this class file
throws:
  JavaModelException - if this compilation unit could not become a working copy.
See Also:   ICompilationUnit.discardWorkingCopy
since:
   3.2ITypeRoot.getWorkingCopy(WorkingCopyOwnerIProgressMonitor)

getBytes
byte[] getBytes() throws JavaModelException(Code)
Returns the bytes contained in this class file. the bytes contained in this class file
exception:
  JavaModelException - if this element does not exist or if anexception occurs while accessing its corresponding resource
since:
   3.3

getType
IType getType()(Code)
Returns the type contained in this class file. This is a handle-only method. The type may or may not exist. the type contained in this class file

getWorkingCopy
IJavaElement getWorkingCopy(IProgressMonitor monitor, IBufferFactory factory) throws JavaModelException(Code)
Returns a working copy on the source associated with this class file using the given factory to create the buffer, or null if there is no source associated with the class file.
The buffer will be automatically initialized with the source of the class file upon creation.
The only valid operations on this working copy are getBuffer() or getOriginalElement.
Parameters:
  monitor - a progress monitor used to report progress while opening this compilation unitor null if no progress should be reported
Parameters:
  factory - the factory that creates a buffer that is used to get the content of the working copyor null if the internal factory should be used a a working copy on the source associated with this class file
exception:
  JavaModelException - if the source of this class file cannot be determined. Reasons include:
This class file does not exist (ELEMENT_DOES_NOT_EXIST)

since:
   2.0ITypeRoot.getWorkingCopy(WorkingCopyOwnerIProgressMonitor)

isClass
boolean isClass() throws JavaModelException(Code)
Returns whether this type represents a class. This is not guaranteed to be instantaneous, as it may require parsing the underlying file. true if the class file represents a class.
exception:
  JavaModelException - if this element does not exist or if anexception occurs while accessing its corresponding resource

isInterface
boolean isInterface() throws JavaModelException(Code)
Returns whether this type represents an interface. This is not guaranteed to be instantaneous, as it may require parsing the underlying file. true if the class file represents an interface.
exception:
  JavaModelException - if this element does not exist or if anexception occurs while accessing its corresponding resource

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