Class BaseFeatureCollection<T extends FeatureType,​F extends Feature>

    • Field Detail

      • id

        protected String id
        id used when serialized to gml
    • Constructor Detail

      • BaseFeatureCollection

        protected BaseFeatureCollection()
      • BaseFeatureCollection

        protected BaseFeatureCollection​(T schema)
      • BaseFeatureCollection

        protected BaseFeatureCollection​(T schema,
                                        String id)
    • Method Detail

      • getSchema

        public T getSchema()
        Description copied from interface: FeatureCollection
        The schema for the child feature members of this collection.

        Represents the most general FeatureType in common to all the features in this collection.

        • For a collection backed by a shapefiles (or database tables) the FeatureType returned by getSchema() will complete describe each and every child in the collection.
        • For mixed content FeatureCollections you will need to check the FeatureType of each Feature as it is retrived from the collection
        • The degenerate case returns the "_Feature" FeatureType, where the only thing known is that the contents are Features.
        Specified by:
        getSchema in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Returns:
        FeatureType describing the "common" schema to all child features of this collection
      • contains

        public boolean contains​(Object o)
        Returns true if this collection contains the specified element. .

        This implementation iterates over the elements in the collection, checking each element in turn for equality with the specified element.

        Specified by:
        contains in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Parameters:
        o - object to be checked for containment in this collection.
        Returns:
        true if this collection contains the specified element.
        See Also:
        Collection.contains(Object)
      • containsAll

        public boolean containsAll​(Collection<?> c)
        Returns true if this collection contains all of the elements in the specified collection.

        Specified by:
        containsAll in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Parameters:
        c - collection to be checked for containment in this collection.
        Returns:
        true if this collection contains all of the elements in the specified collection.
        Throws:
        NullPointerException - if the specified collection is null.
        See Also:
        contains(Object)
      • isEmpty

        public boolean isEmpty()
        Description copied from interface: FeatureCollection
        Returns true if this feature collection contains no features.
        Specified by:
        isEmpty in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Returns:
        true if this collection contains no elements.
      • accepts

        public void accepts​(FeatureVisitor visitor,
                            ProgressListener progress)
                     throws IOException
        Description copied from interface: FeatureCollection
        Visit the contents of a feature collection.

        The order of traversal is dependent on the FeatureCollection implementation; some collections are able to make efficient use of an internal index in order to quickly visit features located in the same region.

        Specified by:
        accepts in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Parameters:
        visitor - Closure applied to each feature in turn.
        progress - Used to report progress, may be used to interrupt the operation
        Throws:
        IOException
      • sort

        public FeatureCollection<T,​F> sort​(SortBy order)
        Obtained sorted contents, only implemented for SimpleFeature at present.

        This method only supports SimpleFeature at present, consider use of FeatureSource.features( Query ).

        Specified by:
        sort in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Parameters:
        order - Sort order
        Returns:
        FeatureCollection sorted in the indicated order
      • getBounds

        public ReferencedEnvelope getBounds()
        Full collection traversal to obtain bounds of FeatureCollection. Subclasees are strong encouraged to override this expensive method (even if just to implement caching).
        Specified by:
        getBounds in interface FeatureCollection<T extends FeatureType,​F extends Feature>
        Returns:
        An Envelope containing the total bounds of this collection.