public class CSVFeatureWriter extends Object implements FeatureWriter<SimpleFeatureType,SimpleFeature>
Constructor and Description |
---|
CSVFeatureWriter(CSVFileState csvFileState,
CSVStrategy csvStrategy) |
CSVFeatureWriter(CSVFileState csvFileState,
CSVStrategy csvStrategy,
Query query) |
Modifier and Type | Method and Description |
---|---|
void |
close()
Release the underlying resources.
|
SimpleFeatureType |
getFeatureType()
FeatureType this reader has been configured to create.
|
boolean |
hasNext()
Query whether this FeatureWriter has another Feature.
|
SimpleFeature |
next()
Reads a Feature from the underlying AttributeReader.
|
void |
remove()
Mark our
currentFeature feature as null, it will be skipped when written effectively
removing it. |
void |
write()
Writes the current Feature, must be called before hasNext.
|
public CSVFeatureWriter(CSVFileState csvFileState, CSVStrategy csvStrategy) throws IOException
IOException
public CSVFeatureWriter(CSVFileState csvFileState, CSVStrategy csvStrategy, Query query) throws IOException
IOException
public SimpleFeatureType getFeatureType()
FeatureWriter
getFeatureType
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
public boolean hasNext() throws IOException
FeatureWriter
Please note: it is more efficient to construct your FeatureWriter with a Filer (to skip entries you do not want), than to force the creation of entire Features only to skip over them.
FeatureWriters that support append operations will allow calls to next, even when
hasNext() returns false
.
hasNext
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
true
if an additional Feature
is available, false
if not.IOException
- if an I/O error occurs.public SimpleFeature next() throws IOException, IllegalArgumentException, NoSuchElementException
FeatureWriter
This method may return a Feature even though hasNext() returns false
, this
allows FeatureWriters to provide an ability to append content.
next
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
IOException
- if the writer has been closed or an I/O error occurs reading the next
Feature
.IllegalArgumentException
NoSuchElementException
public void remove() throws IOException
currentFeature
feature as null, it will be skipped when written effectively
removing it.remove
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
IOException
public void write() throws IOException
FeatureWriter
FeautreWriters will need to allow FeatureSources of the same typeName to issue a FeatureEvent:
false
.
true
and the resulting Feature has indeed been modified.
If this FeatureWriter is opperating against a Transaction the FEATURES_MODIFIED or FEATURES_ADDED events should only be sent to FeatureSources opperating on the same Transaction. When Transaction commit() is called other FeatureSources will be informed of the modifications.
If you have not called write() when you call hasNext() or next(), no modification will occur().
write
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
IOException
public void close() throws IOException
FeatureWriter
close
in interface Closeable
close
in interface AutoCloseable
close
in interface FeatureWriter<SimpleFeatureType,SimpleFeature>
IOException
- if there there are problems releasing underlying resources, or possibly
if close has been called (up to the implementation).Copyright © 1996–2023 Geotools. All rights reserved.