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public interface FeatureStore<T extends org.opengis.feature.type.FeatureType,F extends org.opengis.feature.Feature>
Provides storage of data for Features.
Individual shapefiles, database tables, etc. are modified through this interface.
This is a prototype DataSource replacement please see FeatureSource
Method Summary | |
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java.util.List<org.opengis.filter.identity.FeatureId> |
addFeatures(FeatureCollection<T,F> collection)
Adds all features from the passed feature collection to the datasource. |
Transaction |
getTransaction()
Used to access the Transaction this DataSource is currently opperating against. |
void |
modifyFeatures(org.opengis.feature.type.AttributeDescriptor[] type,
java.lang.Object[] value,
org.opengis.filter.Filter filter)
Modifies the passed attribute types with the passed objects in all features that correspond to the passed OGS filter. |
void |
modifyFeatures(org.opengis.feature.type.AttributeDescriptor type,
java.lang.Object value,
org.opengis.filter.Filter filter)
Modifies the passed attribute types with the passed objects in all features that correspond to the passed OGS filter. |
void |
removeFeatures(org.opengis.filter.Filter filter)
Removes all of the features specificed by the passed filter from the collection. |
void |
setFeatures(FeatureReader<T,F> reader)
Deletes the all the current Features of this datasource and adds the new collection. |
void |
setTransaction(Transaction transaction)
Provides a transaction for commit/rollback control of this FeatureStore. |
Methods inherited from interface org.geotools.data.FeatureSource |
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addFeatureListener, getBounds, getBounds, getCount, getDataStore, getFeatures, getFeatures, getFeatures, getInfo, getName, getQueryCapabilities, getSchema, getSupportedHints, removeFeatureListener |
Method Detail |
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java.util.List<org.opengis.filter.identity.FeatureId> addFeatures(FeatureCollection<T,F> collection) throws java.io.IOException
A list of FeatureIds is returned; one for each Feature in the order created. Please note that these FeatureIds may not be assigned until after a commit has been performed.
collection
- The collection of features to add.
java.io.IOException
- if anything goes wrong.void removeFeatures(org.opengis.filter.Filter filter) throws java.io.IOException
filter
- An OpenGIS filter; specifies which features to remove.
java.io.IOException
- If anything goes wrong.void modifyFeatures(org.opengis.feature.type.AttributeDescriptor[] type, java.lang.Object[] value, org.opengis.filter.Filter filter) throws java.io.IOException
type
- The attributes to modify.value
- The values to put in the attribute types.filter
- An OGC filter to note which attributes to modify.
java.io.IOException
- if the attribute and object arrays are not eqaul
length, if the object types do not match the attribute types,
or if there are backend errors.void modifyFeatures(org.opengis.feature.type.AttributeDescriptor type, java.lang.Object value, org.opengis.filter.Filter filter) throws java.io.IOException
type
- The attributes to modify.value
- The values to put in the attribute types.filter
- An OGC filter to note which attributes to modify.
java.io.IOException
- If modificaton is not supported, if the object type
do not match the attribute type.void setFeatures(FeatureReader<T,F> reader) throws java.io.IOException
reader
- - the collection to be written
java.io.IOException
- if there are any datasource errors.void setTransaction(Transaction transaction)
This method operates as a replacement for setAutoCommitMode. When a transaction is provided you are no longer automatically committing.
In order to return to AutoCommit mode supply the Transaction.AUTO_COMMIT to this method. Since this represents a return to AutoCommit mode the previous Transaction will be commited.
transaction
- DOCUMENT ME!Transaction getTransaction()
Example Use: adding features to a road DataSource
Transaction t = roads.getTransaction();
try{
roads.addFeatures( features );
roads.getTransaction().commit();
}
catch( IOException erp ){
//something went wrong;
roads.getTransaction().rollback();
}
Transaction.AUTO_COMMIT
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