Class DiffObserver
java.lang.Object
org.apache.jackrabbit.oak.spi.commit.DiffObserver
- All Implemented Interfaces:
Observer
Abstract base class for observers that use a content diff to determine
what changed between two consecutive observed states of the repository.
Subclasses just need to provide the diff handler by implementing the
getRootDiff(NodeState, NodeState, CommitInfo)
method.-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionfinal void
contentChanged
(@NotNull NodeState root, @NotNull CommitInfo info) Observes a content change.protected abstract NodeStateDiff
getRootDiff
(@NotNull NodeState before, @NotNull NodeState after, @NotNull CommitInfo info) Returns the diff handler to be used for the given content change.
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Constructor Details
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DiffObserver
public DiffObserver()
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Method Details
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getRootDiff
protected abstract NodeStateDiff getRootDiff(@NotNull @NotNull NodeState before, @NotNull @NotNull NodeState after, @NotNull @NotNull CommitInfo info) Returns the diff handler to be used for the given content change.- Parameters:
before
- state of the repository before this changesafter
- state of the repository after this changesinfo
- local commit information, ornull
if not available- Returns:
- diff handler for this change
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contentChanged
public final void contentChanged(@NotNull @NotNull NodeState root, @NotNull @NotNull CommitInfo info) Description copied from interface:Observer
Observes a content change. See theObserver
class javadocs and relevant repository and observer registration details for more information on when and how this method gets called.- Specified by:
contentChanged
in interfaceObserver
- Parameters:
root
- root state of the repositoryinfo
- commit information
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