Package org.eclipse.jdt.core

Interface IClassFile

    • Method Detail

      • becomeWorkingCopy

        ICompilationUnit becomeWorkingCopy​(IProblemRequestor problemRequestor,
                                   WorkingCopyOwner owner,
                                   IProgressMonitor monitor)
                            throws JavaModelException
        Deprecated.
        Use ITypeRoot.getWorkingCopy(WorkingCopyOwner, IProgressMonitor) instead. Note that if this deprecated method is used, problems will be reported to the given problem requestor as well as the problem requestor returned by the working copy owner (if not null).
        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(boolean, IProgressMonitor) 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 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 during reconciling as they are discovered. The requestor can be set to null indicating that the client is not interested in problems.
        owner - the given WorkingCopyOwner, or null for the primary owner
        monitor - a progress monitor used to report progress while opening this compilation unit or null if no progress should be reported
        Returns:
        a working copy for this class file
        Throws:
        JavaModelException - if this compilation unit could not become a working copy.
        Since:
        3.2
        See Also:
        ICompilationUnit.discardWorkingCopy()

      • getBytes

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

      • getWorkingCopy

        IJavaElement getWorkingCopy​(IProgressMonitor monitor,
                            IBufferFactory factory)
                     throws JavaModelException
        Deprecated.
        Use ITypeRoot.getWorkingCopy(WorkingCopyOwner, IProgressMonitor) instead
        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 unit or null if no progress should be reported
        factory - the factory that creates a buffer that is used to get the content of the working copy or null if the internal factory should be used
        Returns:
        a a working copy on the source associated with this class file
        Throws:
        JavaModelException - if the source of this class file can not be determined. Reasons include:
        • This class file does not exist (ELEMENT_DOES_NOT_EXIST)
        Since:
        2.0

      • isClass

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

      • isInterface

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