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public interface Delta
Represents changes made to a DeltaAware
implementation. Should be efficiently externalizable.
Method Summary | |
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DeltaAware |
merge(DeltaAware d)
Merge the current set of deltas with a given DeltaAware instance, and return a coherent and complete
DeltaAware instance. |
Methods inherited from interface java.io.Externalizable |
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readExternal, writeExternal |
Method Detail |
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DeltaAware merge(DeltaAware d)
DeltaAware
instance, and return a coherent and complete
DeltaAware
instance. Implementations should be able to deal with null values passed in, or values of a
different type from the expected DeltaAware instance. Usually the approach would be to ignore what is passed in,
create a new instance of the DeltaAware implementation that the current Delta implementation is written for, apply
changes and pass it back.
d
- instance to merge with, or null if no merging is needed
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