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Oracle® Coherence .NET API Reference
BinaryDeltaCompressor Members
BinaryDeltaCompressor Class Constructors Methods Fields See Also

Oracle® Coherence .NET API Reference Release 3.6.1
E18812-01

The BinaryDeltaCompressor type exposes the following members.

# Constructors

| Name | Description
--- | --- | ---
| BinaryDeltaCompressor | Initializes a new instance of the BinaryDeltaCompressor class

# Methods

| Name | Description
--- | --- | ---
| ApplyDelta | Apply a delta to an old value in order to create a new value.
| CreateDelta | Actually create a delta in the binary delta format. This method is designed to be overridden by subclasses that have more intimate knowledge of the contents of the buffers.
| EnsureWriter | Make sure that a DataWriter exists if one doesn't already.
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
| ExtractDelta | Compare an old value to a new value and generate a delta that represents the changes that must be made to the old value in order to transform it into the new value.
| Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
| FinalizeDelta | Convert an open delta output stream into a finalized Binary delta.
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.)
| GetType | Gets the Type of the current instance. (Inherited from Object.)
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.)
| ToString | Returns a String that represents the current Object. (Inherited from Object.)
| WriteAppend | Encode a binary diff "append" operator to indicate that bytes should be appended from the delta stream to the new value.
| WriteExtract | Encode a binary diff "extract" operator to indicate that bytes should be copied from the old value to the new value.

# Fields

| Name | Description
--- | --- | ---
| DELTA_TRUNCATE | A delta value that indicates an empty new value.
| FMT_BINDIFF | A format indicator (the first byte of the binary delta) that indicates that the new value is formed by applying a series of modifications to the old value. The possible modifications are defined by the OP_* constants.
| FMT_EMPTY | A format indicator (the first byte of the binary delta) that indicates that the new value is a zero-length binary value.
| FMT_REPLACE | A format indicator (the first byte of the binary delta) that indicates that the new value is found in its entirety in the delta value. In other words, other than the first byte, the delta is itself the new value.
| MIN_BLOCK | Minimum length of an "extract" block to encode.
| NO_BINARY | An empty Binary object.
| OP_APPEND | A binary delta operator that instructs the {@link #applyDelta} method to copy the following bytes from the delta value and append them to the new value. The format is the one-byte OP_APPEND indicator followed by a packed int length and then a series of bytes. The length indicates the length of the series of bytes to copy from the delta value and append to the new value.
| OP_EXTRACT | A binary delta operator that instructs the ApplyDelta(Binary, Binary) method to extract bytes from the old value and append them to the new value. The format is the one-byte OP_EXTRACT indicator followed by a packed int offset and packed int length. The offset and length indicate the region of the old value to extract and append to the new value.
| OP_TERM | A binary delta operator that instructs the {@link #applyDelta} method that the delta has been fully applied.

# See Also

BinaryDeltaCompressor Class
Tangosol.IO Namespace