| Modifier and Type | Method and Description |
|---|---|
| public Serializable | Returns: checkpoint dataThe checkpointInfo method returns the current checkpoint data for this reader. |
| public void | |
| public void | open(Serializable
specifies the last checkpoint checkpoint)The open method prepares the reader to read items. |
| public Object |
| checkpointInfo | back to summary |
|---|---|
| public Serializable checkpointInfo() throws Exception The checkpointInfo method returns the current checkpoint data for this reader. It is called before a chunk checkpoint is committed.
| |
| close | back to summary |
|---|---|
| public void close() throws Exception The close method marks the end of use of the ItemReader. The reader is free to do any cleanup necessary.
| |
| open | back to summary |
|---|---|
| public void open(Serializable checkpoint) throws Exception The open method prepares the reader to read items. The input parameter represents the last checkpoint for this reader in a given job instance. The checkpoint data is defined by this reader and is provided by the checkpointInfo method. The checkpoint data provides the reader whatever information it needs to resume reading items upon restart. A checkpoint value of null is passed upon initial start.
| |
| readItem | back to summary |
|---|---|
| public Object readItem() throws Exception The readItem method returns the next item for chunk processing. It returns null to indicate no more items, which also means the current chunk will be committed and the step will end. | |