Package org.opendaylight.yangtools.yang.data.tree.api

Interface DataTreeSnapshot

All Known Subinterfaces:

CursorAwareDataTreeModification, CursorAwareDataTreeSnapshot, DataTreeModification

public interface DataTreeSnapshot

Read-only snapshot of a DataTree. The snapshot is stable and isolated, e.g. data tree changes occurring after the snapshot has been taken are not visible through the snapshot.

Method Summary

Modifier and Type	Method	Description
@NonNull EffectiveModelContext	modelContext()	Return the EffectiveModelContext effective at the time this snapshot was taken.
@NonNull DataTreeModification	newModification()	Create a new data tree modification based on this snapshot, using the specified data application strategy.
Optional<NormalizedNode>	readNode(YangInstanceIdentifier path)	Read a particular node from the snapshot.
Optional<VersionInfo>	readVersionInfo(YangInstanceIdentifier path)	Read the VersionInfo of the last commit which modified a particular node.

Method Details

modelContext

@NonNull EffectiveModelContext modelContext()

Return the EffectiveModelContext effective at the time this snapshot was taken.

Returns:

the EffectiveModelContext effective at the time this snapshot was taken

readNode

Optional<NormalizedNode> readNode(YangInstanceIdentifier path)

Read a particular node from the snapshot.

Parameters:

path - Path of the node

Returns:

Optional result encapsulating the presence and value of the node

readVersionInfo

Optional<VersionInfo> readVersionInfo(YangInstanceIdentifier path)

Read the VersionInfo of the last commit which modified a particular node.

Parameters:

path - Path of the node

Returns:

Optional VersionInfo from the commit

newModification

@NonNull DataTreeModification newModification()

Create a new data tree modification based on this snapshot, using the specified data application strategy.

Returns:

A new data tree modification