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public interface RowKeyIndex
Identifies a collection that is indexed by rowKeys.
Data is accessed by setting a rowKey, and then accessing
getRowData()
.
Method Summary | |
---|---|
boolean |
areRowsAvailable(int rowsToCheck)
Check if a range of rows is available starting from the current position |
boolean |
areRowsAvailable(int startIndex,
int rowsToCheck)
Check if a range of rows is available from a starting index without requiring the client to iterate over the rows |
boolean |
areRowsAvailable(Object startRowKey,
int rowsToCheck)
Check if a range of rows is available from a starting row key without requiring the client to iterate over the rows |
int |
getRowCount()
Gets the number of values in this collection |
Object |
getRowData()
Gets the current value identified by the current index or rowKey. |
Object |
getRowData(int rowIndex)
Gets the row value at the given index. |
Object |
getRowData(Object rowKey)
Get row data by row key. |
int |
getRowIndex()
Gets the index of the current value. |
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. |
boolean |
isRowAvailable(Object rowKey)
Check for an available row by row key. |
void |
setRowIndex(int rowIndex)
Sets up a value at a particular index to be the current value. |
void |
setRowKey(Object rowKey)
Sets up a value at a particular rowKey to be the current value. |
Method Detail |
---|
int getRowCount()
int getRowIndex()
void setRowIndex(int rowIndex)
rowIndex
- the zero-based index of the value to make current.
Use -1 to clear the current valueObject getRowKey()
void setRowKey(Object rowKey)
rowKey
- the rowKey of the value to make current.
Use null to clear the current valueboolean isRowAvailable()
getRowCount()
).
getRowKey()
,
getRowIndex()
Object getRowData()
getRowKey()
,
getRowIndex()
boolean isRowAvailable(int rowIndex)
rowIndex
- the index of the row to check.
Object getRowData(int rowIndex)
rowIndex
- the index of the row to get data from.
boolean isRowAvailable(Object rowKey)
rowKey
- the row key for the row to check.
Object getRowData(Object rowKey)
rowKey
- the row key for the row to get data.
boolean areRowsAvailable(int rowsToCheck)
rowsToCheck
- number of rows to check
boolean areRowsAvailable(int startIndex, int rowsToCheck)
startIndex
- the starting index for the rangerowsToCheck
- number of rows to check
boolean areRowsAvailable(Object startRowKey, int rowsToCheck)
startRowKey
- the starting row key for the rangerowsToCheck
- number of rows to check
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