public static class NullImplementation.NullDeltaCompressor extends Object implements DeltaCompressor
Modifier and Type | Field and Description |
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static DeltaCompressor |
INSTANCE
Singleton instance.
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Constructor and Description |
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NullDeltaCompressor() |
Modifier and Type | Method and Description |
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ReadBuffer |
applyDelta(ReadBuffer bufOld, ReadBuffer bufDelta)
Apply a delta to an old value in order to create a new value.
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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.
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public static final DeltaCompressor INSTANCE
public 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.
extractDelta
in interface DeltaCompressor
bufOld
- the old valuebufNew
- the new value; must not be nullpublic ReadBuffer applyDelta(ReadBuffer bufOld, ReadBuffer bufDelta)
applyDelta
in interface DeltaCompressor
bufOld
- the old valuebufDelta
- the delta information returned from DeltaCompressor.extractDelta(com.tangosol.io.ReadBuffer, com.tangosol.io.ReadBuffer)
to apply to the old value