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Oracle® Fusion Middleware Java API Reference for Oracle Coherence 12c (12.1.3.0.0) E47890-01 |
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public interface DeltaCompressor
The DeltaCompressor interface provides the capability of comparing two in-memory buffers containing an old and a new value, and producing a result (called a "delta") that can be applied to the old value to create the new value.
Method Summary | |
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ReadBuffer |
applyDelta(ReadBuffer bufOld, ReadBuffer bufDelta) Apply a delta to an old value in order to create a new value. |
ReadBuffer |
extractDelta(ReadBuffer bufOld, ReadBuffer bufNew) 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. |
Method Detail |
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ReadBuffer extractDelta(ReadBuffer bufOld, ReadBuffer bufNew)
If the old value is null, the generated delta must be a "replace", meaning that applying it to any value must produce the specified new value.
bufOld
- the old valuebufNew
- the new value; must not be nullReadBuffer applyDelta(ReadBuffer bufOld, ReadBuffer bufDelta)
bufOld
- the old valuebufDelta
- the delta information returned from extractDelta(com.tangosol.io.ReadBuffer, com.tangosol.io.ReadBuffer)
to apply to the old value
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Oracle® Fusion Middleware Java API Reference for Oracle Coherence 12c (12.1.3.0.0) E47890-01 |
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