java.lang.Object | ||
↳ | android.database.AbstractCursor | |
↳ | android.database.MatrixCursor |
A mutable cursor implementation backed by an array of Object
s. Use
newRow()
to add rows. Automatically expands internal capacity
as needed.
Nested Classes | |||||||||||
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MatrixCursor.RowBuilder | Builds a row of values using either of these approaches:
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Inherited Constants | |||||||||||
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From interface
android.database.Cursor
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Inherited Fields | |||||||||||
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From class
android.database.AbstractCursor
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Public Constructors | |||||||||||
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Constructs a new cursor with the given initial capacity.
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Constructs a new cursor.
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Public Methods | |||||||||||
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Adds a new row to the end with the given column values.
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Adds a new row to the end with the given column values.
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Returns the value of the requested column as a byte array.
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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.
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Returns the numbers of rows in the cursor.
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Returns the value of the requested column as a double.
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Returns the value of the requested column as a float.
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Returns the value of the requested column as an int.
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Returns the value of the requested column as a long.
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Returns the value of the requested column as a short.
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Returns the value of the requested column as a String.
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Returns data type of the given column's value.
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Returns
true if the value in the indicated column is null. | |||||||||||
Adds a new row to the end and returns a builder for that row.
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Inherited Methods | |||||||||||
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From class
android.database.AbstractCursor
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From class
java.lang.Object
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From interface
android.database.CrossProcessCursor
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From interface
android.database.Cursor
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From interface
java.io.Closeable
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From interface
java.lang.AutoCloseable
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Constructs a new cursor with the given initial capacity.
columnNames | names of the columns, the ordering of which determines column ordering elsewhere in this cursor |
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initialCapacity | in rows |
Constructs a new cursor.
columnNames | names of the columns, the ordering of which determines column ordering elsewhere in this cursor |
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Adds a new row to the end with the given column values. Not safe for concurrent use.
columnValues | in the same order as the the column names specified at cursor construction time |
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IllegalArgumentException | if columnValues.size() !=
columnNames.length |
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Adds a new row to the end with the given column values. Not safe for concurrent use.
columnValues | in the same order as the the column names specified at cursor construction time |
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IllegalArgumentException | if columnValues.length !=
columnNames.length |
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Returns the value of the requested column as a byte array.
The result and whether this method throws an exception when the column value is null or the column type is not a blob type is implementation-defined.
column | the zero-based index of the target column. |
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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.
Returns the numbers of rows in the cursor.
Returns the value of the requested column as a double.
The result and whether this method throws an exception when the
column value is null, the column type is not a floating-point type, or the
floating-point value is not representable as a double
value is
implementation-defined.
column | the zero-based index of the target column. |
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Returns the value of the requested column as a float.
The result and whether this method throws an exception when the
column value is null, the column type is not a floating-point type, or the
floating-point value is not representable as a float
value is
implementation-defined.
column | the zero-based index of the target column. |
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Returns the value of the requested column as an int.
The result and whether this method throws an exception when the
column value is null, the column type is not an integral type, or the
integer value is outside the range [Integer.MIN_VALUE
,
Integer.MAX_VALUE
] is implementation-defined.
column | the zero-based index of the target column. |
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Returns the value of the requested column as a long.
The result and whether this method throws an exception when the
column value is null, the column type is not an integral type, or the
integer value is outside the range [Long.MIN_VALUE
,
Long.MAX_VALUE
] is implementation-defined.
column | the zero-based index of the target column. |
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Returns the value of the requested column as a short.
The result and whether this method throws an exception when the
column value is null, the column type is not an integral type, or the
integer value is outside the range [Short.MIN_VALUE
,
Short.MAX_VALUE
] is implementation-defined.
column | the zero-based index of the target column. |
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Returns the value of the requested column as a String.
The result and whether this method throws an exception when the column value is null or the column type is not a string type is implementation-defined.
column | the zero-based index of the target column. |
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Returns data type of the given column's value.
The preferred type of the column is returned but the data may be converted to other types
as documented in the get-type methods such as getInt(int)
, getFloat(int)
etc.
Returned column types are
column | the zero-based index of the target column. |
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Returns true
if the value in the indicated column is null.
column | the zero-based index of the target column. |
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Adds a new row to the end and returns a builder for that row. Not safe for concurrent use.