DefaultPersistenceManager

Public Constructor Summary

	DefaultPersistenceManager(Context ctx, PersistenceStorageEngine engine, CachePolicy cachePolicy)
	DefaultPersistenceManager(Context ctx, PersistenceStorageEngine engine, CachePolicy cachePolicy, Clock clock)

Public Method Summary

void	applyUserWriteToServerCache(Path path, Node node)
void	applyUserWriteToServerCache(Path path, CompoundWrite merge)
List<UserWriteRecord>	loadUserWrites() Return a list of all writes that were persisted
void	removeAllUserWrites() Removes all writes
void	removeUserWrite(long writeId) Remove a write with the given write id.
<T> T	runInTransaction(Callable<T> callable)
void	saveUserMerge(Path path, CompoundWrite children, long writeId) Save a user merge
void	saveUserOverwrite(Path path, Node node, long writeId) Save a user overwrite
CacheNode	serverCache(QuerySpec query) Returns any cached node or children as a CacheNode.
void	setQueryActive(QuerySpec query)
void	setQueryComplete(QuerySpec query)
void	setQueryInactive(QuerySpec query)
void	setTrackedQueryKeys(QuerySpec query, Set<ChildKey> keys)
void	updateServerCache(QuerySpec query, Node node) Overwrite the server cache with the given node for a given query.
void	updateServerCache(Path path, CompoundWrite children) Update the server cache at the given path with the given merge.
void	updateTrackedQueryKeys(QuerySpec query, Set<ChildKey> added, Set<ChildKey> removed)

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface com.google.firebase.database.core.persistence.PersistenceManager

abstract void	applyUserWriteToServerCache(Path path, Node node)
abstract void	applyUserWriteToServerCache(Path path, CompoundWrite merge)
abstract List<UserWriteRecord>	loadUserWrites() Return a list of all writes that were persisted
abstract void	removeAllUserWrites() Removes all writes
abstract void	removeUserWrite(long writeId) Remove a write with the given write id.
abstract <T> T	runInTransaction(Callable<T> callable)
abstract void	saveUserMerge(Path path, CompoundWrite children, long writeId) Save a user merge
abstract void	saveUserOverwrite(Path path, Node node, long writeId) Save a user overwrite
abstract CacheNode	serverCache(QuerySpec query) Returns any cached node or children as a CacheNode.
abstract void	setQueryActive(QuerySpec query)
abstract void	setQueryComplete(QuerySpec query)
abstract void	setQueryInactive(QuerySpec query)
abstract void	setTrackedQueryKeys(QuerySpec query, Set<ChildKey> keys)
abstract void	updateServerCache(QuerySpec query, Node node) Overwrite the server cache with the given node for a given query.
abstract void	updateServerCache(Path path, CompoundWrite children) Update the server cache at the given path with the given merge.
abstract void	updateTrackedQueryKeys(QuerySpec query, Set<ChildKey> added, Set<ChildKey> removed)

Public Constructors

public DefaultPersistenceManager (Context ctx, PersistenceStorageEngine engine, CachePolicy cachePolicy)

Parameters

ctx
engine
cachePolicy

public DefaultPersistenceManager (Context ctx, PersistenceStorageEngine engine, CachePolicy cachePolicy, Clock clock)

Parameters

ctx
engine
cachePolicy
clock

Public Methods

public void applyUserWriteToServerCache (Path path, Node node)

Parameters

path
node

public void applyUserWriteToServerCache (Path path, CompoundWrite merge)

Parameters

path
merge

public List<UserWriteRecord> loadUserWrites ()

Return a list of all writes that were persisted

Returns

The list of writes

public void removeAllUserWrites ()

Removes all writes

public void removeUserWrite (long writeId)

Remove a write with the given write id.

Parameters

writeId	The write id to remove

public T runInTransaction (Callable<T> callable)

Parameters

callable

public void saveUserMerge (Path path, CompoundWrite children, long writeId)

Save a user merge

Parameters

path	The path for this merge
children	The children for this merge
writeId	The write id that was used for this merge

public void saveUserOverwrite (Path path, Node node, long writeId)

Save a user overwrite

Parameters

path	The path for this write
node	The node for this write
writeId	The write id that was used for this write

public CacheNode serverCache (QuerySpec query)

Returns any cached node or children as a CacheNode. The query is *not* used to filter the node but rather to determine if it can be considered complete.

Parameters

query	The query at the path

Returns

The cached node or an empty CacheNode if no cache is available

public void setQueryActive (QuerySpec query)

Parameters

query

public void setQueryComplete (QuerySpec query)

Parameters

query

public void setQueryInactive (QuerySpec query)

Parameters

query

public void setTrackedQueryKeys (QuerySpec query, Set<ChildKey> keys)

Parameters

query
keys

public void updateServerCache (QuerySpec query, Node node)

Overwrite the server cache with the given node for a given query. The query is considered to be complete after saving this node.

Parameters

query	The query for which to apply this overwrite.
node	The node to replace in the cache at the given path

public void updateServerCache (Path path, CompoundWrite children)

Update the server cache at the given path with the given merge.

NOTE: This doesn't mark any queries complete, since the common case is that there's already a complete query above this location.

Parameters

path	The path for this merge
children	The children to update

public void updateTrackedQueryKeys (QuerySpec query, Set<ChildKey> added, Set<ChildKey> removed)

Parameters

query
added
removed