oracle.adf.view.faces.model
Interface RowKeyIndex

All Known Subinterfaces:

CollectionComponent

All Known Implementing Classes:

CollectionModel, UIXHierarchy, UIXTable

public interface RowKeyIndex

Identifies a collection that is indexed by rowKeys. Data is accessed by setting a rowKey, and then accessing getRowData().

Method Summary

int	getRowCount() Gets the number of values in this collection
java.lang.Object	getRowData() Gets the current value identified by the current index or rowKey.
java.lang.Object	getRowData(int rowIndex) Gets the row value at the given index.
int	getRowIndex() Gets the index of the current value.
java.lang.Object	getRowKey() Gets the rowKey of the current value.
boolean	isRowAvailable() Checks to make sure a value exists for the current index or rowKey.
boolean	isRowAvailable(int rowIndex) Checks to make sure a value exists for the given index.
void	setRowIndex(int rowIndex) Sets up a value at a particular index to be the current value.
void	setRowKey(java.lang.Object rowKey) Sets up a value at a particular rowKey to be the current value.

Method Detail

getRowCount

public int getRowCount()

Gets the number of values in this collection

Returns:

-1 if the number of values is not known.

getRowIndex

public int getRowIndex()

Gets the index of the current value. The current value is returned by calling {link #getRowData}

Returns:

the zero-based index of the current value, or -1 if there is no current value

setRowIndex

public void setRowIndex(int rowIndex)

Sets up a value at a particular index to be the current value. The current value is returned by calling {link #getRowData}

Parameters:

rowIndex - the zero-based index of the value to make current. Use -1 to clear the current value

getRowKey

public java.lang.Object getRowKey()

Gets the rowKey of the current value. The current value is returned by calling {link #getRowData}

Returns:

the rowKey of the current value, or null if there is no current value

setRowKey

public void setRowKey(java.lang.Object rowKey)

Sets up a value at a particular rowKey to be the current value. The current value is returned by calling {link #getRowData}

Parameters:

rowKey - the rowKey of the value to make current. Use null to clear the current value

isRowAvailable

public boolean isRowAvailable()

Checks to make sure a value exists for the current index or rowKey. This is useful if the number of values in this collection is not known (See getRowCount()).

Returns:

true if a value exists; false otherwise.

See Also:

getRowKey(), getRowIndex()

getRowData

public java.lang.Object getRowData()

Gets the current value identified by the current index or rowKey.

Returns:

null if the current value has been cleared.

See Also:

getRowKey(), getRowIndex()

isRowAvailable

public boolean isRowAvailable(int rowIndex)

Checks to make sure a value exists for the given index.

Parameters:

rowIndex - the index of the row to check.

Returns:

true if a value exists; false otherwise.

getRowData

public java.lang.Object getRowData(int rowIndex)

Gets the row value at the given index.

Parameters:

rowIndex - the index of the row to get data from.

Returns:

null if the current value has been cleared.