java.lang.Object | ||
android.database.CursorWrapper | Cursor |
Wrapper class for Cursor that delegates all calls to the actual cursor object
CursorWrapper(Cursor cursor) |
void | close() | |||||
Closes the Cursor, releasing all of its resources and making it completely invalid. | ||||||
void | copyStringToBuffer(int columnIndex, CharArrayBuffer buffer) | |||||
Retrieves the requested column text and stores it in the buffer provided. | ||||||
void | deactivate() | |||||
Deactivates the Cursor, making all calls on it fail until requery() is called. | ||||||
byte[] | getBlob(int columnIndex) | |||||
Returns the value of the requested column as a byte array. | ||||||
int | getColumnCount() | |||||
Return total number of columns | ||||||
int | getColumnIndex(String columnName) | |||||
Returns the zero-based index for the given column name. | ||||||
int | getColumnIndexOrThrow(String columnName) | |||||
Returns the zero-based index for the given column name. | ||||||
String | getColumnName(int columnIndex) | |||||
Returns the column name at the given zero-based column index. | ||||||
String[] | 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. | ||||||
int | getCount() | |||||
Returns the numbers of rows in the cursor. | ||||||
double | getDouble(int columnIndex) | |||||
Returns the value of the requested column as a double. | ||||||
Bundle | getExtras() | |||||
Returns a bundle of extra values. | ||||||
float | getFloat(int columnIndex) | |||||
Returns the value of the requested column as a float. | ||||||
int | getInt(int columnIndex) | |||||
Returns the value of the requested column as an int. | ||||||
long | getLong(int columnIndex) | |||||
Returns the value of the requested column as a long. | ||||||
int | getPosition() | |||||
Returns the current position of the cursor in the row set. | ||||||
short | getShort(int columnIndex) | |||||
Returns the value of the requested column as a short. | ||||||
String | getString(int columnIndex) | |||||
Returns the value of the requested column as a String. | ||||||
boolean | getWantsAllOnMoveCalls() | |||||
onMove() will only be called across processes if this method returns true. | ||||||
boolean | isAfterLast() | |||||
Returns whether the cursor is pointing to the position after the last row. | ||||||
boolean | isBeforeFirst() | |||||
Returns whether the cursor is pointing to the position before the first row. | ||||||
boolean | isClosed() | |||||
return true if the cursor is closed | ||||||
boolean | isFirst() | |||||
Returns whether the cursor is pointing to the first row. | ||||||
boolean | isLast() | |||||
Returns whether the cursor is pointing to the last row. | ||||||
boolean | isNull(int columnIndex) | |||||
Returns true if the value in the indicated column is null. |
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boolean | move(int offset) | |||||
Move the cursor by a relative amount, forward or backward, from the current position. | ||||||
boolean | moveToFirst() | |||||
Move the cursor to the first row. | ||||||
boolean | moveToLast() | |||||
Move the cursor to the last row. | ||||||
boolean | moveToNext() | |||||
Move the cursor to the next row. | ||||||
boolean | moveToPosition(int position) | |||||
Move the cursor to an absolute position. | ||||||
boolean | moveToPrevious() | |||||
Move the cursor to the previous row. | ||||||
void | registerContentObserver(ContentObserver observer) | |||||
Register an observer that is called when changes happen to the content backing this cursor. | ||||||
void | registerDataSetObserver(DataSetObserver observer) | |||||
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(). | ||||||
boolean | requery() | |||||
Performs the query that created the cursor again, refreshing its contents. | ||||||
Bundle | respond(Bundle extras) | |||||
This is an out-of-band way for the the user of a cursor to communicate with the cursor. | ||||||
void | setNotificationUri(ContentResolver cr, Uri uri) | |||||
Register to watch a content URI for changes. | ||||||
void | unregisterContentObserver(ContentObserver observer) | |||||
Unregister an observer that has previously been registered with this cursor via registerContentObserver(ContentObserver). | ||||||
void | unregisterDataSetObserver(DataSetObserver observer) | |||||
Unregister an observer that has previously been registered with this cursor via registerContentObserver(ContentObserver). |
If the native content of that column is not blob exception may throw
IllegalArgumentException |
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If the native content of that column is not numeric the result will be the result of passing the column value to Double.valueOf(x).
These values may only change when requery is called.
If the native content of that column is not numeric the result will be the result of passing the column value to Float.valueOf(x).
If the native content of that column is not numeric the result will be the result of passing the column value to Integer.valueOf(x).
If the native content of that column is not numeric the result will be the result of passing the column value to Long.valueOf(x).
If the native content of that column is not numeric the result will be the result of passing the column value to Short.valueOf(x).
If the native content of that column is not text the result will be the result of passing the column value to String.valueOf(x).
true
if the value in the indicated column is null.
This method will return true if the requested destination was reachable, otherwise, it returns false. For example, if the cursor is at currently on the second entry in the result set and move(-5) is called, the position will be pinned at -1, and false will be returned.
This method will return false if the cursor is empty.
This method will return false if the cursor is empty.
This method will return false if the cursor is already past the last entry in the result set.
This method will return true if the request destination was reachable, otherwise, it returns false.
This method will return false if the cursor is already before the first entry in the result set.
One use of this is to tell a cursor that it should retry its network request after it reported an error.
Copyright 2007 Google Inc. | Build 0.9_r1-98467 - 14 Aug 2008 18:48 |