AbstractCursor Class
Definition
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This is an abstract cursor class that handles a lot of the common code that all cursors need to deal with and is provided for convenience reasons.
[Android.Runtime.Register("android/database/AbstractCursor", DoNotGenerateAcw=true)]
public abstract class AbstractCursor : Java.Lang.Object, Android.Database.ICrossProcessCursor, IDisposable, Java.Interop.IJavaPeerable[<Android.Runtime.Register("android/database/AbstractCursor", DoNotGenerateAcw=true)>]
type AbstractCursor = class
inherit Object
interface ICrossProcessCursor
interface ICursor
interface ICloseable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Derived
- Attributes
- Implements
Remarks
This is an abstract cursor class that handles a lot of the common code that all cursors need to deal with and is provided for convenience reasons.
Java documentation for android.database.AbstractCursor.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| AbstractCursor() | |
| AbstractCursor(IntPtr, JniHandleOwnership) |
A constructor used when creating managed representations of JNI objects; called by the runtime. |
Properties
| Class |
Returns the runtime class of this |
| ColumnCount |
Return total number of columns |
| Count |
Returns the numbers of rows in the cursor. |
| Extras |
Returns a bundle of extra values. |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| IsAfterLast |
Returns whether the cursor is pointing to the position after the last row. |
| IsBeforeFirst |
Returns whether the cursor is pointing to the position before the first row. |
| IsClosed |
return true if the cursor is closed |
| IsFirst |
Returns whether the cursor is pointing to the first row. |
| IsLast |
Returns whether the cursor is pointing to the last row. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| MClosed |
This member is deprecated. |
| MContentResolver |
This member is deprecated. |
| MCurrentRowID |
Obsolete.
If MRowIdColumnIndex is not -1 this contains contains the value of the column at MRowIdColumnIndex for the current row this cursor is pointing at. |
| MPos |
This member is deprecated. |
| MRowIdColumnIndex |
Obsolete.
This must be set to the index of the row ID column by any subclass that wishes to support updates. |
| MUpdatedRows | |
| NotificationUri |
Return the URI at which notifications of changes in this Cursor's data will be delivered, as previously set by SetNotificationUri(ContentResolver, Uri). |
| NotificationUris | |
| PeerReference | (Inherited from Object) |
| Position |
Returns the current position of the cursor in the row set. |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
| WantsAllOnMoveCalls |
onMove() will only be called across processes if this method returns true. |
| Window |
If the cursor is backed by a |
Methods
| CheckPosition() |
This function throws CursorIndexOutOfBoundsException if the cursor position is out of bounds. |
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Close() |
Closes the Cursor, releasing all of its resources and making it completely invalid. |
| CopyStringToBuffer(Int32, CharArrayBuffer) |
Retrieves the requested column text and stores it in the buffer provided. |
| Deactivate() |
Deactivates the Cursor, making all calls on it fail until Requery() is called. |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| FillWindow(Int32, CursorWindow) |
Copies cursor data into the window. |
| GetBlob(Int32) |
Returns the value of the requested column as a byte array. |
| GetColumnIndex(String) |
Returns the zero-based index for the given column name, or -1 if the column doesn't exist. |
| GetColumnIndexOrThrow(String) |
Returns the zero-based index for the given column name, or throws IllegalArgumentException if the column doesn't exist. |
| GetColumnName(Int32) |
Returns the column name at the given zero-based column index. |
| GetColumnNames() |
Returns a string array holding the names of all of the columns in the result set in the order in which they were listed in the result. |
| GetDouble(Int32) |
Returns the value of the requested column as a double. |
| GetFloat(Int32) |
Returns the value of the requested column as a float. |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| GetInt(Int32) |
Returns the value of the requested column as an int. |
| GetLong(Int32) |
Returns the value of the requested column as a long. |
| GetShort(Int32) |
Returns the value of the requested column as a short. |
| GetString(Int32) |
Returns the value of the requested column as a String. |
| GetType(Int32) |
Returns data type of the given column's value. |
| GetUpdatedField(Int32) |
Obsolete.
This member is deprecated. |
| IsFieldUpdated(Int32) |
Obsolete.
This member is deprecated. |
| IsNull(Int32) |
Returns |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Move(Int32) |
Move the cursor by a relative amount, forward or backward, from the current position. |
| MoveToFirst() |
Move the cursor to the first row. |
| MoveToLast() |
Move the cursor to the last row. |
| MoveToNext() |
Move the cursor to the next row. |
| MoveToPosition(Int32) |
Move the cursor to an absolute position. |
| MoveToPrevious() |
Move the cursor to the previous row. |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| OnChange(Boolean) |
Subclasses must call this method when they finish committing updates to notify all observers. |
| OnMove(Int32, Int32) |
This function is called every time the cursor is successfully scrolled to a new position, giving the subclass a chance to update any state it may have. |
| RegisterContentObserver(ContentObserver) |
Register an observer that is called when changes happen to the content backing this cursor. |
| RegisterDataSetObserver(DataSetObserver) |
Register an observer that is called when changes happen to the contents of the this cursors data set, for example, when the data set is changed via Requery(), Deactivate(), or Close(). |
| Requery() |
Performs the query that created the cursor again, refreshing its contents. |
| Respond(Bundle) |
This is an out-of-band way for the the user of a cursor to communicate with the cursor. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetNotificationUri(ContentResolver, Uri) |
Specifies a content URI to watch for changes. |
| SetNotificationUris(ContentResolver, IList<Uri>) | |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterContentObserver(ContentObserver) |
Unregister an observer that has previously been registered with this cursor via RegisterContentObserver(ContentObserver). |
| UnregisterDataSetObserver(DataSetObserver) |
Unregister an observer that has previously been registered with this cursor via RegisterContentObserver(ContentObserver). |
| UnregisterFromRuntime() | (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |