org.modeshape.jcr.cache.document

Class LocalDocumentStore

java.lang.Object

org.modeshape.jcr.cache.document.LocalDocumentStore

All Implemented Interfaces:

DocumentStore

public class LocalDocumentStore
extends Object
implements DocumentStore

An implementation of DocumentStore which always uses the local cache to store/retrieve data and which provides some additional methods for exposing local cache information.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	LocalDocumentStore.DistributedOperation
static class	LocalDocumentStore.DocumentOperation An operation upon a persisted document.
static class	LocalDocumentStore.DocumentOperationResults

Constructor Summary

Constructors

Constructor and Description
LocalDocumentStore(SchematicDb database) Creates a new local store with the given database

Method Summary

Methods

Modifier and Type	Method and Description
boolean	containsKey(String key) Determine whether the database contains an entry with the supplied key.
String	createExternalProjection(String projectedNodeKey, String sourceName, String externalPath, String alias) Creates an external projection from the federated node with the given key, towards the external node from the given path, from a source.
SchematicEntry	get(String key) Get the entry with the supplied key.
Document	getChildReference(String parentKey, String childKey) Returns a document representing a single child reference from the supplied parent to the supplied child.
Document	getChildrenBlock(String key) Returns a document representing a block of children, that has the given key.
ExternalBinaryValue	getExternalBinary(String sourceName, String id) Retrieves a binary value which has the given id and which is not stored by ModeShape.
String	getLocalSourceKey() Returns the value of the local repository source key.
org.infinispan.Cache<String,SchematicEntry>	localCache() Returns the local Infinispan cache.
LocalDocumentStore	localStore() Returns a local store instance which will use the local Infinispan cache to store/retrieve information.
String	newDocumentKey(String parentKey, Name documentName, Name documentPrimaryType) Generates a new key which will be assigned to a new child document when it is being added to its parent.
LocalDocumentStore.DocumentOperationResults	performOnEachDocument(LocalDocumentStore.DocumentOperation operation) Perform the supplied operation on each stored document that is accessible within this process.
boolean	prepareDocumentsForUpdate(Collection<String> keys) Prepare to update all of the documents with the given keys.
void	put(Document entryDocument) Store the supplied document in the local db
void	put(String key, Document document) Store the supplied document and metadata at the given key.
SchematicEntry	putIfAbsent(String key, Document document) Store the supplied document and metadata at the given key.
boolean	remove(String key) Remove the existing document at the given key.
void	replace(String key, Document document) Replace the existing document and metadata at the given key with the document that is supplied.
void	setLocalSourceKey(String sourceKey) Sets the value of the local repository source key.
SchematicEntry	storeDocument(String key, Document document) Store the supplied document at the given key.
TransactionManager	transactionManager() Returns a transaction manager instance which can be used to manage transactions for this document store.
void	updateDocument(String key, Document document, SessionNode sessionNode) Updates the content of the document at the given key with the given document.
boolean	updatesRequirePreparing() Return whether DocumentStore.prepareDocumentsForUpdate(Collection) should be called before updating the documents.
XAResource	xaResource() Returns a resource used in distributed transactions

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LocalDocumentStore

public LocalDocumentStore(SchematicDb database)

Creates a new local store with the given database

Parameters:

database - a SchematicDb instance which must be non-null.

Method Detail

containsKey

public boolean containsKey(String key)

Description copied from interface: DocumentStore

Determine whether the database contains an entry with the supplied key.

Specified by:

containsKey in interface DocumentStore

Parameters:

key - the key or identifier for the document

Returns:

true if the database contains an entry with this key, or false otherwise

get

public SchematicEntry get(String key)

Description copied from interface: DocumentStore

Get the entry with the supplied key.

Specified by:

get in interface DocumentStore

Parameters:

key - the key or identifier for the document

Returns:

the entry, or null if there was no document with the supplied key

storeDocument

public SchematicEntry storeDocument(String key,
                           Document document)

Description copied from interface: DocumentStore

Store the supplied document at the given key.

Specified by:

storeDocument in interface DocumentStore

Parameters:

key - the key or identifier for the document

document - the document that is to be stored

Returns:

the existing entry for the supplied key, or null if there was no entry and the put was successful

updateDocument

public void updateDocument(String key,
                  Document document,
                  SessionNode sessionNode)

Description copied from interface: DocumentStore

Updates the content of the document at the given key with the given document.

Specified by:

updateDocument in interface DocumentStore

Parameters:

key - the key or identifier for the document

document - the content with which the existing document should be updated

sessionNode - the SessionNode instance which contains the changes that caused the update

newDocumentKey

public String newDocumentKey(String parentKey,
                    Name documentName,
                    Name documentPrimaryType)

Description copied from interface: DocumentStore

Generates a new key which will be assigned to a new child document when it is being added to its parent.

Specified by:

newDocumentKey in interface DocumentStore

Parameters:

parentKey - a non-null String, the key of the existing parent

documentName - non-null Name, the name of the new child document.

documentPrimaryType - non-null Name, the name of the primary type of the new child document

Returns:

a String which will be assigned as key to the new child, or null indicating that no preferred key is to be used. If this is the case, the repository will assign a random key.

putIfAbsent

public SchematicEntry putIfAbsent(String key,
                         Document document)

Store the supplied document and metadata at the given key.

Parameters:

key - the key or identifier for the document

document - the document that is to be stored

Returns:

the existing entry for the supplied key, or null if there was no entry and the put was successful

See Also:

SchematicDb.putIfAbsent(String, org.infinispan.schematic.document.Document, org.infinispan.schematic.document.Document)

put

public void put(String key,
       Document document)

Store the supplied document and metadata at the given key.

Parameters:

key - the key or identifier for the document

document - the document that is to be stored

See Also:

SchematicDb.put(String, org.infinispan.schematic.document.Document, org.infinispan.schematic.document.Document)

put

public void put(Document entryDocument)

Store the supplied document in the local db

Parameters:

entryDocument - the document that contains the metadata document, content document, and key

replace

public void replace(String key,
           Document document)

Replace the existing document and metadata at the given key with the document that is supplied. This method does nothing if there is not an existing entry at the given key.

Parameters:

key - the key or identifier for the document

document - the new document that is to replace the existing document (or binary content) the replacement

remove

public boolean remove(String key)

Description copied from interface: DocumentStore

Remove the existing document at the given key.

Specified by:

remove in interface DocumentStore

Parameters:

key - the key or identifier for the document

Returns:

true if a document was removed, or false if there was no document with that key

prepareDocumentsForUpdate

public boolean prepareDocumentsForUpdate(Collection<String> keys)

Description copied from interface: DocumentStore

Prepare to update all of the documents with the given keys.

Specified by:

prepareDocumentsForUpdate in interface DocumentStore

Parameters:

keys - the set of keys identifying the documents that are to be updated via DocumentStore.updateDocument(String, Document, SessionNode) or via DocumentStore.get(String) followed by SchematicEntry.editDocumentContent().

Returns:

true if the documents were locked, or false if not all of the documents could be locked

updatesRequirePreparing

public boolean updatesRequirePreparing()

Description copied from interface: DocumentStore

Return whether DocumentStore.prepareDocumentsForUpdate(Collection) should be called before updating the documents.

Specified by:

updatesRequirePreparing in interface DocumentStore

Returns:

true if DocumentStore.prepareDocumentsForUpdate(Collection) should be called, or false otherwise

localStore

public LocalDocumentStore localStore()

Description copied from interface: DocumentStore

Returns a local store instance which will use the local Infinispan cache to store/retrieve information.

Specified by:

localStore in interface DocumentStore

Returns:

a non-null LocalDocumentStore instance.

transactionManager

public TransactionManager transactionManager()

Description copied from interface: DocumentStore

Returns a transaction manager instance which can be used to manage transactions for this document store.

Specified by:

transactionManager in interface DocumentStore

Returns:

a TransactionManager instance, never null.

xaResource

public XAResource xaResource()

Description copied from interface: DocumentStore

Returns a resource used in distributed transactions

Specified by:

xaResource in interface DocumentStore

Returns:

an instance or null

setLocalSourceKey

public void setLocalSourceKey(String sourceKey)

Description copied from interface: DocumentStore

Sets the value of the local repository source key.

Specified by:

setLocalSourceKey in interface DocumentStore

Parameters:

sourceKey - a non-null string

getLocalSourceKey

public String getLocalSourceKey()

Description copied from interface: DocumentStore

Returns the value of the local repository source key.

Specified by:

getLocalSourceKey in interface DocumentStore

Returns:

a non-null string

createExternalProjection

public String createExternalProjection(String projectedNodeKey,
                              String sourceName,
                              String externalPath,
                              String alias)

Description copied from interface: DocumentStore

Creates an external projection from the federated node with the given key, towards the external node from the given path, from a source.

Specified by:

createExternalProjection in interface DocumentStore

Parameters:

projectedNodeKey - a non-null string, the key of the federated node which will contain the projection

sourceName - a non-null string, the name of an external source.

externalPath - a non-null string, representing a path towards a node from the source

alias - a non-null string, representing the alias given to the projection.

Returns:

a non-null string representing the node key of the external node located at externalPath.

getChildrenBlock

public Document getChildrenBlock(String key)

Description copied from interface: DocumentStore

Returns a document representing a block of children, that has the given key.

Specified by:

getChildrenBlock in interface DocumentStore

Parameters:

key - a non-null String the key of the block

Returns:

either a Document with children and possibly a pointer to the next block, or null if there isn't a block with such a key.

getChildReference

public Document getChildReference(String parentKey,
                         String childKey)

Description copied from interface: DocumentStore

Returns a document representing a single child reference from the supplied parent to the supplied child. This method is called when it is too expensive to find the child reference within the child references.

Specified by:

getChildReference in interface DocumentStore

Parameters:

parentKey - the key for the parent

childKey - the key for the child

Returns:

the document representation of a child reference, or null if the implementation doesn't support this method or the parent does not contain a child with the given key

localCache

public org.infinispan.Cache<String,SchematicEntry> localCache()

Returns the local Infinispan cache.

Returns:

a non-null Cache instance.

getExternalBinary

public ExternalBinaryValue getExternalBinary(String sourceName,
                                    String id)

Description copied from interface: DocumentStore

Retrieves a binary value which has the given id and which is not stored by ModeShape.

Specified by:

getExternalBinary in interface DocumentStore

Parameters:

sourceName - a non-null String; the name of an external source

id - a non-null String; the id of an external binary value

Returns:

either an ExternalBinaryValue implementation or null

performOnEachDocument

public LocalDocumentStore.DocumentOperationResults performOnEachDocument(LocalDocumentStore.DocumentOperation operation)
                                                                  throws InterruptedException,
                                                                         ExecutionException

Perform the supplied operation on each stored document that is accessible within this process. Each document will be operated upon in a separate transaction, which will be committed if the operation is successful or rolledback if the operation cannot be complete successfully.

Generally, this method executes the operation upon all documents. If there is an error processing a single document, that document is skipped and the execution will continue with the next document(s). However, if there is an exception with the transactions or another system failure, this method will terminate with an exception.

Parameters:

operation - the operation to be performed

Returns:

the summary of the number of documents that were affected

Throws:

InterruptedException - if the process is interrupted

ExecutionException - if there is an error while getting executing the operation