Interface MemoryBlob

    • Method Detail

      • getInputStream

        MemoryBlobInputStream getInputStream()
        Description copied from interface: Blob
        Get an input stream to read the data in the blob. A new InputStream object is returned each time this method is called, and the stream is positioned at the beginning of the data.
        Specified by:
        getInputStream in interface Blob
        Returns:
        the input stream to read the data from
      • getOutputStream

        MemoryBlobOutputStream getOutputStream()
        Description copied from interface: WritableBlob
        Create an output stream to write data to the blob. The blob must be in state NEW when this method is called. It will be in state UNCOMMITTED after this method completes successfully. Note that this implies that this method may be called at most once for a given blob instance.

        Calls to methods of the returned output stream will modify the state of the blob according to the following rules:

        • A call to OutputStream.close() will change the state to COMMITTED.
        • Calls to other methods will not modify the state of the blob. They will result in an IOException if the state is COMMITTED, i.e. if the stream has already been closed.

        The returned stream may implement ReadFromSupport, especially if the blob stores its data in memory (in which case ReadFromSupport.readFrom(InputStream, long) would read data directly into the buffers managed by the blob).

        Specified by:
        getOutputStream in interface WritableBlob
        Returns:
        an output stream that can be used to write data to the blob
      • getSize

        long getSize()
        Description copied from interface: Blob
        Get the size of the blob.
        Specified by:
        getSize in interface Blob
        Returns:
        the number of bytes in the blob
      • release

        void release()
        Description copied from interface: WritableBlob
        Release all resources held by this blob. This method will put the blob into the RELEASED state and the content will no longer be accessible.
        Specified by:
        release in interface WritableBlob
      • readOnce

        MemoryBlobInputStream readOnce()
        Get an input stream that consumes the content of this blob. The memory held by this blob will be gradually released as data is read from the stream.
        Returns:
        the input stream to read the data from