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Summary: Methods | Protected Methods | Inherited Methods

# ContentProviderClient

`public class ContentProviderClient`
`extends Object` `implements AutoCloseable`

java.lang.Object
↳ | android.content.ContentProviderClient

The public interface object used to interact with a specific `ContentProvider`.

Instances can be obtained by calling `ContentResolver#acquireContentProviderClient` or `ContentResolver#acquireUnstableContentProviderClient`. Instances must be released using `close()` in order to indicate to the system that the underlying `ContentProvider` is no longer needed and can be killed to free up resources.

Note that you should generally create a new ContentProviderClient instance for each thread that will be performing operations. Unlike `ContentResolver`, the methods here such as `query(Uri, String[], Bundle, CancellationSignal)` and `openFile(Uri, String)` are not thread safe -- you must not call `close()` on the ContentProviderClient those calls are made from until you are finished with the data they have returned.

## Summary

### Public methods
`ContentProviderResult[]` | `applyBatch(ArrayList<ContentProviderOperation> operations)` See `ContentProvider.applyBatch`
`ContentProviderResult[]` | `applyBatch(String authority, ArrayList<ContentProviderOperation> operations)` See `ContentProvider.applyBatch`
`int` | `bulkInsert(Uri url, ContentValues[] initialValues)` See `ContentProvider.bulkInsert`
`Bundle` | `call(String authority, String method, String arg, Bundle extras)` See `ContentProvider#call(String, String, Bundle)`
`Bundle` | `call(String method, String arg, Bundle extras)` See `ContentProvider#call(String, String, Bundle)`
`final Uri` | `canonicalize(Uri url)` See `ContentProvider#canonicalize`
`void` | `close()` Closes this client connection, indicating to the system that the underlying `ContentProvider` is no longer needed.
`int` | `delete(Uri url, String selection, String[] selectionArgs)` See `ContentProvider.delete`
`int` | `delete(Uri url, Bundle extras)` See `ContentProvider.delete`
`ContentProvider` | `getLocalContentProvider()` Get a reference to the `ContentProvider` that is associated with this client.
`String[]` | `getStreamTypes(Uri url, String mimeTypeFilter)` See `ContentProvider.getStreamTypes`
`String` | `getType(Uri url)` See `ContentProvider.getType`
`Uri` | `insert(Uri url, ContentValues initialValues, Bundle extras)` See `ContentProvider.insert`
`Uri` | `insert(Uri url, ContentValues initialValues)` See `ContentProvider.insert`
`AssetFileDescriptor` | `openAssetFile(Uri url, String mode, CancellationSignal signal)` See `ContentProvider.openAssetFile`.
`AssetFileDescriptor` | `openAssetFile(Uri url, String mode)` See `ContentProvider.openAssetFile`.
`ParcelFileDescriptor` | `openFile(Uri url, String mode, CancellationSignal signal)` See `ContentProvider.openFile`.
`ParcelFileDescriptor` | `openFile(Uri url, String mode)` See `ContentProvider.openFile`.
`final AssetFileDescriptor` | `openTypedAssetFile(Uri uri, String mimeTypeFilter, Bundle opts, CancellationSignal signal)`
`final AssetFileDescriptor` | `openTypedAssetFileDescriptor(Uri uri, String mimeType, Bundle opts, CancellationSignal signal)` See `ContentProvider.openTypedAssetFile`
`final AssetFileDescriptor` | `openTypedAssetFileDescriptor(Uri uri, String mimeType, Bundle opts)` See `ContentProvider.openTypedAssetFile`
`Cursor` | `query(Uri uri, String[] projection, Bundle queryArgs, CancellationSignal cancellationSignal)` See `ContentProvider.query`
`Cursor` | `query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder, CancellationSignal cancellationSignal)` See `ContentProvider.query`
`Cursor` | `query(Uri url, String[] projection, String selection, String[] selectionArgs, String sortOrder)` See `ContentProvider.query`
`boolean` | `refresh(Uri url, Bundle extras, CancellationSignal cancellationSignal)` See `ContentProvider#refresh`
`boolean` | `release()` This method is deprecated. replaced by `close()`.
`final Uri` | `uncanonicalize(Uri url)` See `ContentProvider#uncanonicalize`
`int` | `update(Uri url, ContentValues values, Bundle extras)` See `ContentProvider.update`
`int` | `update(Uri url, ContentValues values, String selection, String[] selectionArgs)` See `ContentProvider.update`

### Protected methods
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `java.lang.AutoCloseable`
`abstract void` | `close()` Closes this resource, relinquishing any underlying resources.

## Public methods

### applyBatch

    public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations)

See `ContentProvider.applyBatch`

Parameters
`operations` | `ArrayList`: This value cannot be `null`.

Returns
`ContentProviderResult[]` | This value cannot be `null`.

Throws
`OperationApplicationException` |
`RemoteException` |

### applyBatch

    public ContentProviderResult[] applyBatch (String authority,
                    ArrayList<ContentProviderOperation> operations)

See `ContentProvider.applyBatch`

Parameters
`authority` | `String`: This value cannot be `null`.
`operations` | `ArrayList`: This value cannot be `null`.

Returns
`ContentProviderResult[]` | This value cannot be `null`.

Throws
`OperationApplicationException` |
`RemoteException` |

### bulkInsert

    public int bulkInsert (Uri url,
                    ContentValues[] initialValues)

See `ContentProvider.bulkInsert`

Parameters
`url` | `Uri`: This value cannot be `null`.
`initialValues` | `ContentValues`: This value cannot be `null`.

Returns
`int` |

Throws
`RemoteException` |

### call

    public Bundle call (String authority,
                    String method,
                    String arg,
                    Bundle extras)

See `ContentProvider#call(String, String, Bundle)`

Parameters
`authority` | `String`: This value cannot be `null`.
`method` | `String`: This value cannot be `null`.
`arg` | `String`: This value may be `null`.
`extras` | `Bundle`: This value may be `null`.

Returns
`Bundle` | This value may be `null`.

Throws
`RemoteException` |

### call

    public Bundle call (String method,
                    String arg,
                    Bundle extras)

See `ContentProvider#call(String, String, Bundle)`

Parameters
`method` | `String`: This value cannot be `null`.
`arg` | `String`: This value may be `null`.
`extras` | `Bundle`: This value may be `null`.

Returns
`Bundle` | This value may be `null`.

Throws
`RemoteException` |

### canonicalize

    public final Uri canonicalize (Uri url)

See `ContentProvider#canonicalize`

Parameters
`url` | `Uri`: This value cannot be `null`.

Returns
`Uri` | This value may be `null`.

Throws
`RemoteException` |

### close

    public void close ()

Closes this client connection, indicating to the system that the underlying `ContentProvider` is no longer needed.

### delete

    public int delete (Uri url,
                    String selection,
                    String[] selectionArgs)

See `ContentProvider.delete`

Parameters
`url` | `Uri`: This value cannot be `null`.
`selection` | `String`: This value may be `null`.
`selectionArgs` | `String`: This value may be `null`.

Returns
`int` |

Throws
`RemoteException` |

### delete

    public int delete (Uri url,
                    Bundle extras)

See `ContentProvider.delete`

Parameters
`url` | `Uri`: This value cannot be `null`.
`extras` | `Bundle`: This value may be `null`.

Returns
`int` |

Throws
`RemoteException` |

### getLocalContentProvider

    public ContentProvider getLocalContentProvider ()

Get a reference to the `ContentProvider` that is associated with this client. If the `ContentProvider` is running in a different process then null will be returned. This can be used if you know you are running in the same process as a provider, and want to get direct access to its implementation details.

Returns
`ContentProvider` | If the associated `ContentProvider` is local, returns it. Otherwise returns null.

### getStreamTypes

    public String[] getStreamTypes (Uri url,
                    String mimeTypeFilter)

See `ContentProvider.getStreamTypes`

Parameters
`url` | `Uri`: This value cannot be `null`.
`mimeTypeFilter` | `String`: This value cannot be `null`.

Returns
`String[]` | This value may be `null`.

Throws
`RemoteException` |

### getType

    public String getType (Uri url)

See `ContentProvider.getType`

Parameters
`url` | `Uri`: This value cannot be `null`.

Returns
`String` | This value may be `null`.

Throws
`RemoteException` |

### insert

    public Uri insert (Uri url,
                    ContentValues initialValues,
                    Bundle extras)

See `ContentProvider.insert`

Parameters
`url` | `Uri`: This value cannot be `null`.
`initialValues` | `ContentValues`: This value may be `null`.
`extras` | `Bundle`: This value may be `null`.

Returns
`Uri` | This value may be `null`.

Throws
`RemoteException` |

### insert

    public Uri insert (Uri url,
                    ContentValues initialValues)

See `ContentProvider.insert`

Parameters
`url` | `Uri`: This value cannot be `null`.
`initialValues` | `ContentValues`: This value may be `null`.

Returns
`Uri` | This value may be `null`.

Throws
`RemoteException` |

### openAssetFile

    public AssetFileDescriptor openAssetFile (Uri url,
                    String mode,
                    CancellationSignal signal)

See `ContentProvider.openAssetFile`. Note that this does not take care of non-content: URIs such as file:. It is strongly recommended you use the `ContentResolver.openAssetFileDescriptor` API instead.

Parameters
`url` | `Uri`: This value cannot be `null`.
`mode` | `String`: This value cannot be `null`.
`signal` | `CancellationSignal`: This value may be `null`.

Returns
`AssetFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openAssetFile

    public AssetFileDescriptor openAssetFile (Uri url,
                    String mode)

See `ContentProvider.openAssetFile`. Note that this does not take care of non-content: URIs such as file:. It is strongly recommended you use the `ContentResolver.openAssetFileDescriptor` API instead.

Parameters
`url` | `Uri`: This value cannot be `null`.
`mode` | `String`: This value cannot be `null`.

Returns
`AssetFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openFile

    public ParcelFileDescriptor openFile (Uri url,
                    String mode,
                    CancellationSignal signal)

See `ContentProvider.openFile`. Note that this does not take care of non-content: URIs such as file:. It is strongly recommended you use the `ContentResolver.openFileDescriptor` API instead.

Parameters
`url` | `Uri`: This value cannot be `null`.
`mode` | `String`: This value cannot be `null`.
`signal` | `CancellationSignal`: This value may be `null`.

Returns
`ParcelFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openFile

    public ParcelFileDescriptor openFile (Uri url,
                    String mode)

See `ContentProvider.openFile`. Note that this does not take care of non-content: URIs such as file:. It is strongly recommended you use the `ContentResolver.openFileDescriptor` API instead.

Parameters
`url` | `Uri`: This value cannot be `null`.
`mode` | `String`: This value cannot be `null`.

Returns
`ParcelFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openTypedAssetFile

    public final AssetFileDescriptor openTypedAssetFile (Uri uri,
                    String mimeTypeFilter,
                    Bundle opts,
                    CancellationSignal signal)

Parameters
`uri` | `Uri`: This value cannot be `null`.
`mimeTypeFilter` | `String`: This value cannot be `null`.
`opts` | `Bundle`: This value may be `null`.
`signal` | `CancellationSignal`: This value may be `null`.

Returns
`AssetFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openTypedAssetFileDescriptor

    public final AssetFileDescriptor openTypedAssetFileDescriptor (Uri uri,
                    String mimeType,
                    Bundle opts,
                    CancellationSignal signal)

See `ContentProvider.openTypedAssetFile`

Parameters
`uri` | `Uri`: This value cannot be `null`.
`mimeType` | `String`: This value cannot be `null`.
`opts` | `Bundle`: This value may be `null`.
`signal` | `CancellationSignal`: This value may be `null`.

Returns
`AssetFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### openTypedAssetFileDescriptor

    public final AssetFileDescriptor openTypedAssetFileDescriptor (Uri uri,
                    String mimeType,
                    Bundle opts)

See `ContentProvider.openTypedAssetFile`

Parameters
`uri` | `Uri`: This value cannot be `null`.
`mimeType` | `String`: This value cannot be `null`.
`opts` | `Bundle`: This value may be `null`.

Returns
`AssetFileDescriptor` | This value may be `null`.

Throws
`FileNotFoundException` |
`RemoteException` |

### query

    public Cursor query (Uri uri,
                    String[] projection,
                    Bundle queryArgs,
                    CancellationSignal cancellationSignal)

See `ContentProvider.query`

Parameters
`uri` | `Uri`: This value cannot be `null`.
`projection` | `String`: This value may be `null`.
`queryArgs` | `Bundle`
`cancellationSignal` | `CancellationSignal`: This value may be `null`.

Returns
`Cursor` | This value may be `null`.

Throws
`RemoteException` |

### query

    public Cursor query (Uri uri,
                    String[] projection,
                    String selection,
                    String[] selectionArgs,
                    String sortOrder,
                    CancellationSignal cancellationSignal)

See `ContentProvider.query`

Parameters
`uri` | `Uri`: This value cannot be `null`.
`projection` | `String`: This value may be `null`.
`selection` | `String`: This value may be `null`.
`selectionArgs` | `String`: This value may be `null`.
`sortOrder` | `String`: This value may be `null`.
`cancellationSignal` | `CancellationSignal`: This value may be `null`.

Returns
`Cursor` | This value may be `null`.

Throws
`RemoteException` |

### query

    public Cursor query (Uri url,
                    String[] projection,
                    String selection,
                    String[] selectionArgs,
                    String sortOrder)

See `ContentProvider.query`

Parameters
`url` | `Uri`: This value cannot be `null`.
`projection` | `String`: This value may be `null`.
`selection` | `String`: This value may be `null`.
`selectionArgs` | `String`: This value may be `null`.
`sortOrder` | `String`: This value may be `null`.

Returns
`Cursor` | This value may be `null`.

Throws
`RemoteException` |

### refresh

    public boolean refresh (Uri url,
                    Bundle extras,
                    CancellationSignal cancellationSignal)

See `ContentProvider#refresh`

Parameters
`url` | `Uri`
`extras` | `Bundle`: This value may be `null`.
`cancellationSignal` | `CancellationSignal`: This value may be `null`.

Returns
`boolean` |

Throws
`RemoteException` |

### release

    public boolean release ()

This method is deprecated.
replaced by `close()`.

Returns
`boolean` |

### uncanonicalize

    public final Uri uncanonicalize (Uri url)

See `ContentProvider#uncanonicalize`

Parameters
`url` | `Uri`: This value cannot be `null`.

Returns
`Uri` | This value may be `null`.

Throws
`RemoteException` |

### update

    public int update (Uri url,
                    ContentValues values,
                    Bundle extras)

See `ContentProvider.update`

Parameters
`url` | `Uri`: This value cannot be `null`.
`values` | `ContentValues`: This value may be `null`.
`extras` | `Bundle`: This value may be `null`.

Returns
`int` |

Throws
`RemoteException` |

### update

    public int update (Uri url,
                    ContentValues values,
                    String selection,
                    String[] selectionArgs)

See `ContentProvider.update`

Parameters
`url` | `Uri`: This value cannot be `null`.
`values` | `ContentValues`: This value may be `null`.
`selection` | `String`: This value may be `null`.
`selectionArgs` | `String`: This value may be `null`.

Returns
`int` |

Throws
`RemoteException` |

## Protected methods

### finalize

    protected void finalize ()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the `finalize` method to dispose of system resources or to perform other cleanup.

The general contract of `finalize` is that it is invoked if and when the Java™ virtual machine has determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, except as a result of an action taken by the finalization of some other object or class which is ready to be finalized. The `finalize` method may take any action, including making this object available again to other threads; the usual purpose of `finalize`, however, is to perform cleanup actions before the object is irrevocably discarded. For example, the finalize method for an object that represents an input/output connection might perform explicit I/O transactions to break the connection before the object is permanently discarded.

The `finalize` method of class `Object` performs no special action; it simply returns normally. Subclasses of `Object` may override this definition.

The Java programming language does not guarantee which thread will invoke the `finalize` method for any given object. It is guaranteed, however, that the thread that invokes finalize will not be holding any user-visible synchronization locks when finalize is invoked. If an uncaught exception is thrown by the finalize method, the exception is ignored and finalization of that object terminates.

After the `finalize` method has been invoked for an object, no further action is taken until the Java virtual machine has again determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, including possible actions by other objects or classes which are ready to be finalized, at which point the object may be discarded.

The `finalize` method is never invoked more than once by a Java virtual machine for any given object.

Any exception thrown by the `finalize` method causes the finalization of this object to be halted, but is otherwise ignored.

Throws
`Throwable` |

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