# RowSetWriter

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

# RowSetWriter

`
public


interface
RowSetWriter
`  
`


`

|------------------------|
| javax.sql.RowSetWriter |

<br />

*** ** * ** ***

An object that implements the`RowSetWriter`interface, called a*writer* . A writer may be registered with a`RowSet`object that supports the reader/writer paradigm.

If a disconnected`RowSet`object modifies some of its data, and it has a writer associated with it, it may be implemented so that it calls on the writer's`writeData`method internally to write the updates back to the data source. In order to do this, the writer must first establish a connection with the rowset's data source.

If the data to be updated has already been changed in the data source, there is a conflict, in which case the writer will not write the changes to the data source. The algorithm the writer uses for preventing or limiting conflicts depends entirely on its implementation.

## Summary

|                                                                                                                                                                 ### Public methods                                                                                                                                                                  ||
|---------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` abstract boolean` | ` `[writeData](https://developer.android.com/reference/javax/sql/RowSetWriter#writeData(javax.sql.RowSetInternal))`(`[RowSetInternal](https://developer.android.com/reference/javax/sql/RowSetInternal)` caller) ` Writes the changes in this`RowSetWriter`object's rowset back to the data source from which it got its data. |

## Public methods

### writeData

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public abstract boolean writeData (RowSetInternal caller)
```

Writes the changes in this`RowSetWriter`object's rowset back to the data source from which it got its data.

<br />

|                                                                                            Parameters                                                                                            ||
|----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `caller` | `RowSetInternal`: the`RowSet`object (1) that has implemented the`RowSetInternal`interface, (2) with which this writer is registered, and (3) that called this method internally <br /> |

|                                                        Returns                                                        ||
|-----------|------------------------------------------------------------------------------------------------------------|
| `boolean` | `true`if the modified data was written;`false`if not, which will be the case if there is a conflict <br /> |

|                                                      Throws                                                      ||
|-------------------------------------------------------------------------------|-----------------------------------|
| [SQLException](https://developer.android.com/reference/java/sql/SQLException) | if a database access error occurs |