Class BinaryBasedBlob

  • All Implemented Interfaces:

    public class BinaryBasedBlob
    extends Object
    implements Blob
    This Blob implementation is based on an underlying Binary.

    Any error accessing the underlying binary in getNewStream() will be deferred to the returned input stream.

    • Constructor Detail

      • BinaryBasedBlob

        public BinaryBasedBlob​(Binary binary)
    • Method Detail

      • getNewStream

        public @NotNull InputStream getNewStream()
        Delegates to Binary.getStream() and returns an input stream the always throws an IOException if the underlying binary failed to produce one.
        Specified by:
        getNewStream in interface Blob
        a new stream for this blob
      • length

        public long length()
        Delegates to Binary.getSize() and returns -1 if that fails.
        Specified by:
        length in interface Blob
        the length of this blob.
      • getReference

        public String getReference()
        Description copied from interface: Blob
        Returns a secure reference to this blob, or null if such a reference is not available.
        Specified by:
        getReference in interface Blob
        See Also:
      • getContentIdentity

        public String getContentIdentity()
        Description copied from interface: Blob
        A unique identifier of the content of this value. Usually this is a message digest of the content (a cryptographically secure one-way hash). This allows to avoid processing large binary values multiple times.

        This method returns null if the identifier is unknown. The identifier may not always be available, for example if the value has not yet been saved or processed. Once an identifier is available, it will never change because values are immutable.

        If two values have the same identifier, the content of the value is guaranteed to be the same. However it is not guaranteed that two values with the same content will return the same identifier.

        The identifier is opaque, meaning it can have any format and size.

        Specified by:
        getContentIdentity in interface Blob