/* (non-Javadoc)
* @see org.geotools.data.DataStore#getFeatureWriterAppend(java.lang.String, org.geotools.data.Transaction)
*
*/
public FeatureWriter<SimpleFeatureType, SimpleFeature> getFeatureWriterAppend(
String typeName, Transaction transaction) throws IOException {
FeatureWriter<SimpleFeatureType, SimpleFeature> writer =
getFeatureWriter(typeName, transaction);
while (writer.hasNext()) {
writer.next(); // Hmmm this would be a use for skip() then?
}
return writer;
}
/**
* Provides a wrapper on the provided writer that checks locks.
*
* @param writer FeatureWriter requiring access control
* @param transaction Transaction being used
* @return FeatureWriter with lock checking
*/
public FeatureWriter<SimpleFeatureType, SimpleFeature> checkedWriter(
final FeatureWriter<SimpleFeatureType, SimpleFeature> writer, final Transaction transaction) {
SimpleFeatureType featureType = writer.getFeatureType();
final String typeName = featureType.getTypeName();
return new DelegatingFeatureWriter<SimpleFeatureType, SimpleFeature>() {
SimpleFeature live = null;
public FeatureWriter<SimpleFeatureType, SimpleFeature> getDelegate() {
return writer;
}
public SimpleFeatureType getFeatureType() {
return writer.getFeatureType();
}
public SimpleFeature next() throws IOException {
live = writer.next();
return live;
}
public void remove() throws IOException {
if (live != null) {
assertAccess(typeName, live.getID(), transaction);
}
writer.remove();
live = null;
}
public void write() throws IOException {
if (live != null) {
assertAccess(typeName, live.getID(), transaction);
}
writer.write();
live = null;
}
public boolean hasNext() throws IOException {
live = null;
return writer.hasNext();
}
public void close() throws IOException {
live = null;
if (writer != null) writer.close();
}
};
}