Package com.couchbase.lite

Class Database

java.lang.Object
com.couchbase.lite.BaseDatabase
com.couchbase.lite.Database
All Implemented Interfaces:
com.couchbase.lite.internal.listener.Listenable<DatabaseChange,DatabaseChangeListener>, AutoCloseable
public final class Database extends BaseDatabase
A Couchbase Lite database.

  • Field Details

    • prediction

      @NonNull public static final Prediction prediction
      ENTERPRISE EDITION API

      The predictive model manager for registering and unregistering predictive models. This is part of the Public API. (which is unfortunate, because we can't change it to Java standards)

    • log

      @NonNull public static final Log log
      Gets the logging controller for the Couchbase Lite library to configure the logging settings and add custom logging.

    • config

      @NonNull protected final com.couchbase.lite.internal.ImmutableDatabaseConfiguration config

  • Constructor Details

    • Database

      public Database(@NonNull String name) throws CouchbaseLiteException
      Construct a Database with a given name and the default config. If the database does not yet exist it will be created.
      Parameters:
      name - The name of the database: May NOT contain capital letters!
      Throws:
      CouchbaseLiteException - if any error occurs during the open operation.

    • Database

      public Database(@NonNull String name, @NonNull DatabaseConfiguration config) throws CouchbaseLiteException
      Construct a Database with a given name and database config. If the database does not yet exist, it will be created, unless the `readOnly` option is used.
      Parameters:
      name - The name of the database: May NOT contain capital letters!
      config - The database config.
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the open operation.

  • Method Details

    • copy

      public static void copy(@NonNull File path, @NonNull String name, @NonNull DatabaseConfiguration config) throws CouchbaseLiteException
      Make a copy of a database in a new location. It is recommended that this method not be used on an open database.
      Parameters:
      path - path to the existing db file
      name - the name of the new DB
      config - a config with the new location
      Throws:
      CouchbaseLiteException - on copy failure

    • changeEncryptionKey

      public void changeEncryptionKey(EncryptionKey encryptionKey) throws CouchbaseLiteException
      ENTERPRISE EDITION API

      Changes the database's encryption key, or removes encryption if the new key is null.

      Parameters:
      encryptionKey - The encryption key
      Throws:
      CouchbaseLiteException - on error

    • getDatabase

      @NonNull protected Database getDatabase()

    • delete

      public static void delete(@NonNull String name, @Nullable File directory) throws CouchbaseLiteException
      Deletes a database of the given name in the given directory.
      Parameters:
      name - the database's name
      directory - the directory containing the database: the database's parent directory.
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.

    • exists

      public static boolean exists(@NonNull String name, @Nullable File directory)
      Checks whether a database of the given name exists in the given directory or not.
      Parameters:
      name - the database's name
      directory - the path where the database is located.
      Returns:
      true if exists, false otherwise.

    • copy

      protected static void copy(@NonNull File path, @NonNull String name, @NonNull String dbDir, int algorithm, byte[] encryptionKey) throws CouchbaseLiteException
      Throws:
      CouchbaseLiteException

    • getName

      @NonNull public String getName()
      Return the database name
      Returns:
      the database's name

    • getPath

      @Nullable public String getPath()
      The database's absolute path
      Returns:
      the database's path or null if the database is closed.

    • performMaintenance

      public boolean performMaintenance(MaintenanceType type) throws CouchbaseLiteException
      Throws:
      CouchbaseLiteException

    • close

      public void close() throws CouchbaseLiteException
      Closes a database. Closing a database will stop all replicators, live queries and all listeners attached to it.
      Specified by:
      close in interface AutoCloseable
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.

    • delete

      public void delete() throws CouchbaseLiteException
      Deletes a database. Deleting a database will stop all replicators, live queries and all listeners attached to it. Although attempting to close a closed database is not an error, attempting to delete a closed database is.
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.

    • getScopes

      @NonNull public final Set<Scope> getScopes() throws CouchbaseLiteException
      Get scope names that have at least one collection. Note: the default scope is exceptional as it will always be listed even though there are no collections under it.
      Throws:
      CouchbaseLiteException

    • getScope

      @Nullable public final Scope getScope(@NonNull String name) throws CouchbaseLiteException
      Get a scope object by name. As the scope cannot exist by itself without having a collection, the hull value will be returned if there are no collections under the given scope’s name. Note: The default scope is exceptional, and it will always be returned.
      Throws:
      CouchbaseLiteException

    • getDefaultScope

      @NonNull public final Scope getDefaultScope() throws CouchbaseLiteException
      Get the default scope.
      Throws:
      CouchbaseLiteException

    • createCollection

      @NonNull public final Collection createCollection(@NonNull String name) throws CouchbaseLiteException
      Create a named collection in the default scope. If the collection already exists, the existing collection will be returned.
      Parameters:
      name - the scope in which to create the collection
      Returns:
      the named collection in the default scope
      Throws:
      CouchbaseLiteException - on failure

    • createCollection

      @NonNull public final Collection createCollection(@NonNull String collectionName, @Nullable String scopeName) throws CouchbaseLiteException
      Create a named collection in the specified scope. If the collection already exists, the existing collection will be returned.
      Parameters:
      collectionName - the name of the new collection
      scopeName - the scope in which to create the collection
      Returns:
      the named collection in the default scope
      Throws:
      CouchbaseLiteException - on failure

    • getCollections

      @NonNull public final Set<Collection> getCollections() throws CouchbaseLiteException
      Get all collections in the default scope.
      Throws:
      CouchbaseLiteException

    • getCollections

      @NonNull public final Set<Collection> getCollections(@Nullable String scopeName) throws CouchbaseLiteException
      Get all collections in the named scope.
      Parameters:
      scopeName - the scope name
      Returns:
      the collections in the named scope
      Throws:
      CouchbaseLiteException

    • getCollection

      @Nullable public final Collection getCollection(@NonNull String name) throws CouchbaseLiteException
      Get a collection in the default scope by name. If the collection doesn't exist, the function will return null.
      Parameters:
      name - the collection to find
      Returns:
      the named collection or null
      Throws:
      CouchbaseLiteException

    • getCollection

      @Nullable public final Collection getCollection(@NonNull String collectionName, @Nullable String scopeName) throws CouchbaseLiteException
      Get a collection in the specified scope by name. If the collection doesn't exist, the function will return null.
      Parameters:
      collectionName - the collection to find
      scopeName - the scope in which to create the collection
      Returns:
      the named collection or null
      Throws:
      CouchbaseLiteException

    • getDefaultCollection

      @NonNull public final Collection getDefaultCollection() throws CouchbaseLiteException
      Get the default collection.
      Returns:
      the default collection.
      Throws:
      CouchbaseLiteException

    • deleteCollection

      public final void deleteCollection(@NonNull String name) throws CouchbaseLiteException
      Delete a collection by name in the default scope. If the collection doesn't exist, the operation will do nothing. Note: the default collection cannot be deleted.
      Parameters:
      name - the collection to be deleted
      Throws:
      CouchbaseLiteException - on failure

    • deleteCollection

      public final void deleteCollection(@NonNull String collectionName, @Nullable String scopeName) throws CouchbaseLiteException
      Delete a collection by name in the specified scope. If the collection doesn't exist, the operation will do nothing. Note: the default collection cannot be deleted.
      Parameters:
      collectionName - the collection to be deleted
      scopeName - the scope from which to delete the collection
      Throws:
      CouchbaseLiteException - on failure

    • inBatch

      public <T extends Exception> void inBatch(@NonNull UnitOfWork<T> work) throws CouchbaseLiteException, T
      Runs a group of database operations in a batch. Use this when performing bulk write operations like multiple inserts/updates; it saves the overhead of multiple database commits, greatly improving performance.
      Parameters:
      work - a unit of work that may terminate abruptly (with an exception)
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.
      T extends Exception

    • createQuery

      @NonNull public Query createQuery(@NonNull String query)
      Create a SQL++ query.
      Parameters:
      query - a valid SQL++ query
      Returns:
      the Query object

    • saveBlob

      @Internal("This method is not part of the public API") public void saveBlob(@NonNull Blob blob)
      (UNCOMMITTED) Use this API if you are developing Javascript language bindings. If you are developing a native app, you must use the Blob API.
      Parameters:
      blob - a blob

    • getBlob

      @Internal("This method is not part of the public API") @Nullable public Blob getBlob(@NonNull Map<String,Object> props)
      (UNCOMMITTED) Use this API if you are developing Javascript language bindings. If you are developing a native app, you must use the Blob API.
      Parameters:
      props - blob properties

    • getConfig

      @NonNull public DatabaseConfiguration getConfig()
      Returns a copy of the database configuration.
      Returns:
      the READONLY copied config object

    • toString

      @NonNull public String toString()
      Overrides:
      toString in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • getCount

      @Deprecated public long getCount()
      Deprecated.
      Use getDefaultCollection().getCount()
      The number of documents in the default collection.
      Returns:
      the number of documents in the database, 0 if database is closed.

    • getDocument

      @Deprecated @Nullable public Document getDocument(@NonNull String id)
      Deprecated.
      Use getDefaultCollection().getDocument()
      Gets an existing Document with the given ID from the default collection. If the document with the given ID doesn't exist in the default collection, the method will return null. If the default collection does not exist or if the database is closed, the method will throw an CouchbaseLiteError
      Parameters:
      id - the document ID
      Returns:
      the Document object or null
      Throws:
      CouchbaseLiteError - when the database is closed or the default collection has been deleted

    • save

      @Deprecated public void save(@NonNull MutableDocument document) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().save
      Saves a document to the default collection. When write operations are executed concurrently, the last writer will overwrite all other written values. Calling this method is the same as calling save(MutableDocument, ConcurrencyControl.LAST_WRITE_WINS)
      Parameters:
      document - The document.
      Throws:
      CouchbaseLiteException - on error

    • save

      @Deprecated public boolean save(@NonNull MutableDocument document, @NonNull ConcurrencyControl concurrencyControl) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().save()
      Saves a document to the default collection. When used with LAST_WRITE_WINS concurrency control, the last write operation will win if there is a conflict. When used with FAIL_ON_CONFLICT concurrency control, save will fail when there is a conflict and the method will return false
      Parameters:
      document - The document.
      concurrencyControl - The concurrency control.
      Returns:
      true if successful. false if the FAIL_ON_CONFLICT concurrency
      Throws:
      CouchbaseLiteException - on error

    • save

      @Deprecated public boolean save(@NonNull MutableDocument document, @NonNull ConflictHandler conflictHandler) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().save
      Saves a document to the default collection. Conflicts will be resolved by the passed ConflictHandler
      Parameters:
      document - The document.
      conflictHandler - A conflict handler.
      Returns:
      true if successful. false if the FAIL_ON_CONFLICT concurrency
      Throws:
      CouchbaseLiteException - on error

    • delete

      @Deprecated public void delete(@NonNull Document document) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().delete
      Deletes a document from the default collection. When write operations are executed concurrently, the last writer will overwrite all other written values. Calling this function is the same as calling delete(Document, ConcurrencyControl.LAST_WRITE_WINS)
      Parameters:
      document - The document.
      Throws:
      CouchbaseLiteException - on error

    • delete

      @Deprecated public boolean delete(@NonNull Document document, @NonNull ConcurrencyControl concurrencyControl) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().delete
      Deletes a document from the default collection. When used with lastWriteWins concurrency control, the last write operation will win if there is a conflict. When used with FAIL_ON_CONFLICT concurrency control, delete will fail and the method will return false.
      Parameters:
      document - The document.
      concurrencyControl - The concurrency control.
      Throws:
      CouchbaseLiteException - on error

    • purge

      @Deprecated public void purge(@NonNull Document document) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().purge
      Purges the passed document from the default collection. This is more drastic than delete(Document): it removes all local traces of the document. Purges will NOT be replicated to other databases.
      Parameters:
      document - the document to be purged.
      Throws:
      CouchbaseLiteException

    • purge

      @Deprecated public void purge(@NonNull String id) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().purge
      Purges the document with the passed id from default collection. This is more drastic than delete(Document), it removes all local traces of the document. Purges will NOT be replicated to other databases.
      Parameters:
      id - the document ID
      Throws:
      CouchbaseLiteException

    • setDocumentExpiration

      @Deprecated public void setDocumentExpiration(@NonNull String id, @Nullable Date expiration) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().setDocumentExpiration
      Sets an expiration date for a document in the default collection. The document will be purged from the database at the set time.
      Parameters:
      id - The ID of the Document
      expiration - Nullable expiration timestamp as a Date, set timestamp to null to remove expiration date time from doc.
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.

    • getDocumentExpiration

      @Deprecated @Nullable public Date getDocumentExpiration(@NonNull String id) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().getDocumentExpiration
      Returns the expiration time of the document. If the document has no expiration time set, the method will return null.
      Parameters:
      id - The ID of the Document
      Returns:
      Date a nullable expiration timestamp of the document or null if time not set.
      Throws:
      CouchbaseLiteException - Throws an exception if any error occurs during the operation.

    • addChangeListener

      @Deprecated @NonNull public ListenerToken addChangeListener(@NonNull DatabaseChangeListener listener)
      Deprecated.
      Use getDefaultCollection().addChangeListener
      Adds a change listener for the changes that occur in the database. The changes will be delivered on the UI thread for the Android platform and on an arbitrary thread for the Java platform. When developing a Java Desktop application using Swing or JavaFX that needs to update the UI after receiving the changes, make sure to schedule the UI update on the UI thread by using SwingUtilities.invokeLater(Runnable) or Platform.runLater(Runnable) respectively.
      Specified by:
      addChangeListener in interface com.couchbase.lite.internal.listener.Listenable<DatabaseChange,DatabaseChangeListener>
      Parameters:
      listener - callback

    • addChangeListener

      @Deprecated @NonNull public ListenerToken addChangeListener(@Nullable Executor executor, @NonNull DatabaseChangeListener listener)
      Deprecated.
      Use getDefaultCollection().addChangeListener
      Adds a change listener for the changes that occur in the database with an executor on which the changes will be posted to the listener. If the executor is not specified, the changes will be delivered on the UI thread for the Android platform and on an arbitrary thread for the Java platform.
      Specified by:
      addChangeListener in interface com.couchbase.lite.internal.listener.Listenable<DatabaseChange,DatabaseChangeListener>
      Parameters:
      listener - callback

    • addDocumentChangeListener

      @Deprecated @NonNull public ListenerToken addDocumentChangeListener(@NonNull String docId, @NonNull DocumentChangeListener listener)
      Deprecated.
      Use getDefaultCollection().addDocumentChangeListener
      Adds a change listener for the changes that occur to the specified document, in the default collection. On the Android platform changes will be delivered on the UI thread. On other Java platforms changes will be delivered on an arbitrary thread. When developing a Java Desktop application using Swing or JavaFX for a UI that will be updated in response to a change, make sure to schedule the UI update on the UI thread by using SwingUtilities.invokeLater(Runnable) or Platform.runLater(Runnable) respectively.

    • addDocumentChangeListener

      @Deprecated @NonNull public ListenerToken addDocumentChangeListener(@NonNull String docId, @Nullable Executor executor, @NonNull DocumentChangeListener listener)
      Deprecated.
      Use getDefaultCollection().addDocumentChangeListener
      Adds a change listener for the changes that occur to the specified document, in the default collection. Changes will be posted to the listener on the passed executor on which. If the executor is not specified, the changes will be delivered on the UI thread for the Android platform and on an arbitrary thread for the Java platform.

    • removeChangeListener

      @Deprecated public void removeChangeListener(@NonNull ListenerToken token)
      Deprecated.
      Use ListenerToken.remove
      Removes a change listener added to the default collection.
      Parameters:
      token - returned by a previous call to addChangeListener or addDocumentListener.

    • getIndexes

      @Deprecated @NonNull public List<String> getIndexes() throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().getIndexes
      Get a list of the names of indices on the default collection.
      Returns:
      the list of index names
      Throws:
      CouchbaseLiteException - on failure

    • createIndex

      @Deprecated public void createIndex(@NonNull String name, @NonNull Index index) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().createIndex
      Add an index to the default collection.
      Parameters:
      name - index name
      index - index description
      Throws:
      CouchbaseLiteException - on failure

    • createIndex

      @Deprecated public void createIndex(@NonNull String name, @NonNull IndexConfiguration config) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().createIndex
      Add an index to the default collection.
      Parameters:
      name - index name
      config - index configuration
      Throws:
      CouchbaseLiteException - on failure

    • deleteIndex

      @Deprecated public void deleteIndex(@NonNull String name) throws CouchbaseLiteException
      Deprecated.
      Use getDefaultCollection().deleteIndex
      Delete the named index from the default collection.
      Parameters:
      name - name of the index to delete
      Throws:
      CouchbaseLiteException - on failure

    • finalize

      protected void finalize() throws Throwable
      Overrides:
      finalize in class Object
      Throws:
      Throwable