CursorWindow

Creates a new empty cursor window and gives it a name.

The cursor initially has no rows or columns. Call setNumColumns(int) to set the number of columns before adding any rows to the cursor.

Creates a new empty cursor window.

The cursor initially has no rows or columns. Call setNumColumns(int) to set the number of columns before adding any rows to the cursor.

Allocates a new row at the end of this cursor window.

Clears out the existing contents of the window, making it safe to reuse for new data.

The start position ( getStartPosition() ), number of rows ( getNumRows() ), and number of columns in the cursor are all reset to zero.

Copies the text of the field at the specified row and column index into a CharArrayBuffer .

The buffer is populated as follows:

• If the buffer is too small for the value to be copied, then it is automatically resized.
• If the field is of type FIELD_TYPE_NULL , then the buffer is set to an empty string.
• If the field is of type FIELD_TYPE_STRING , then the buffer is set to the contents of the string.
• If the field is of type FIELD_TYPE_INTEGER , then the buffer is set to a string representation of the integer in decimal, obtained by formatting the value with the printf family of functions using format specifier %lld .
• If the field is of type FIELD_TYPE_FLOAT , then the buffer is set to a string representation of the floating-point value in decimal, obtained by formatting the value with the printf family of functions using format specifier %g .
• If the field is of type FIELD_TYPE_BLOB , then a SQLiteException is thrown.

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

Frees the last row in this cursor window.

Gets the value of the field at the specified row and column index as a byte array.

The result is determined as follows:

• If the field is of type FIELD_TYPE_NULL , then the result is null .
• If the field is of type FIELD_TYPE_BLOB , then the result is the blob value.
• If the field is of type FIELD_TYPE_STRING , then the result is the array of bytes that make up the internal representation of the string value.
• If the field is of type FIELD_TYPE_INTEGER or FIELD_TYPE_FLOAT , then a SQLiteException is thrown.

Gets the value of the field at the specified row and column index as a double .

The result is determined as follows:

• If the field is of type FIELD_TYPE_NULL , then the result is 0.0 .
• If the field is of type FIELD_TYPE_STRING , then the result is the value obtained by parsing the string value with strtod .
• If the field is of type FIELD_TYPE_INTEGER , then the result is the integer value converted to a double .
• If the field is of type FIELD_TYPE_FLOAT , then the result is the double value.
• If the field is of type FIELD_TYPE_BLOB , then a SQLiteException is thrown.

Gets the value of the field at the specified row and column index as a float .

The result is determined by invoking getDouble(int, int) and converting the result to float .

Gets the value of the field at the specified row and column index as an int .

The result is determined by invoking getLong(int, int) and converting the result to int .

Gets the value of the field at the specified row and column index as a long .

The result is determined as follows:

• If the field is of type FIELD_TYPE_NULL , then the result is 0L .
• If the field is of type FIELD_TYPE_STRING , then the result is the value obtained by parsing the string value with strtoll .
• If the field is of type FIELD_TYPE_INTEGER , then the result is the long value.
• If the field is of type FIELD_TYPE_FLOAT , then the result is the floating-point value converted to a long .
• If the field is of type FIELD_TYPE_BLOB , then a SQLiteException is thrown.

Gets the number of rows in this window.

Gets the value of the field at the specified row and column index as a short .

The result is determined by invoking getLong(int, int) and converting the result to short .

Gets the start position of this cursor window.

The start position is the zero-based index of the first row that this window contains relative to the entire result set of the Cursor .

Gets the value of the field at the specified row and column index as a string.

The result is determined as follows:

• If the field is of type FIELD_TYPE_NULL , then the result is null .
• If the field is of type FIELD_TYPE_STRING , then the result is the string value.
• If the field is of type FIELD_TYPE_INTEGER , then the result is a string representation of the integer in decimal, obtained by formatting the value with the printf family of functions using format specifier %lld .
• If the field is of type FIELD_TYPE_FLOAT , then the result is a string representation of the floating-point value in decimal, obtained by formatting the value with the printf family of functions using format specifier %g .
• If the field is of type FIELD_TYPE_BLOB , then a SQLiteException is thrown.

Returns the type of the field at the specified row and column index.

The returned field types are:

• FIELD_TYPE_NULL
• FIELD_TYPE_INTEGER
• FIELD_TYPE_FLOAT
• FIELD_TYPE_STRING
• FIELD_TYPE_BLOB

Returns true if the field at the specified row and column index has type FIELD_TYPE_BLOB or FIELD_TYPE_NULL .

Returns true if the field at the specified row and column index has type FIELD_TYPE_FLOAT .

Returns true if the field at the specified row and column index has type FIELD_TYPE_INTEGER .

Returns true if the field at the specified row and column index has type FIELD_TYPE_NULL .

Returns true if the field at the specified row and column index has type FIELD_TYPE_STRING or FIELD_TYPE_NULL .

Copies a byte array into the field at the specified row and column index.

Puts a double-precision floating point value into the field at the specified row and column index.

Puts a long integer into the field at the specified row and column index.

Puts a null value into the field at the specified row and column index.

Copies a string into the field at the specified row and column index.

Sets the number of columns in this window.

This method must be called before any rows are added to the window, otherwise it will fail to set the number of columns if it differs from the current number of columns.

Sets the start position of this cursor window.

The start position is the zero-based index of the first row that this window contains relative to the entire result set of the Cursor .

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

          getClass().getName() + '@' + Integer.toHexString(hashCode())
         

See Writing a useful toString method if you intend implementing your own toString method.

Flatten this object in to a Parcel.

Invoked when the garbage collector has detected that this instance is no longer reachable. The default implementation does nothing, but this method can be overridden to free resources.

Note that objects that override finalize are significantly more expensive than objects that don't. Finalizers may be run a long time after the object is no longer reachable, depending on memory pressure, so it's a bad idea to rely on them for cleanup. Note also that finalizers are run on a single VM-wide finalizer thread, so doing blocking work in a finalizer is a bad idea. A finalizer is usually only necessary for a class that has a native peer and needs to call a native method to destroy that peer. Even then, it's better to provide an explicit close method (and implement Closeable ), and insist that callers manually dispose of instances. This works well for something like files, but less well for something like a BigInteger where typical calling code would have to deal with lots of temporaries. Unfortunately, code that creates lots of temporaries is the worst kind of code from the point of view of the single finalizer thread.

If you must use finalizers, consider at least providing your own ReferenceQueue and having your own thread process that queue.

Unlike constructors, finalizers are not automatically chained. You are responsible for calling super.finalize() yourself.

Uncaught exceptions thrown by finalizers are ignored and do not terminate the finalizer thread. See Effective Java Item 7, "Avoid finalizers" for more.

Called when the last reference to the object was released by a call to releaseReference() or close() .