Class SortedFeatureIterator

    • Constructor Detail

      • SortedFeatureIterator

        public SortedFeatureIterator​(SimpleFeatureIterator iterator,
                                     SimpleFeatureType schema,
                                     SortBy[] sortBy,
                                     int maxFeatures)
                              throws IOException
        Builds a new sorting feature iterator
        iterator - The iterator to be sorted
        schema - The iterator schema
        sortBy - The sorting directives
        maxFeatures - The maximum number of features to keep in memory, or a negative number to use the system default
    • Method Detail

      • canSort

        public static final boolean canSort​(SimpleFeatureType schema,
                                            SortBy... sortBy)
        Checks if the schema and the sortBy are suitable for merge/sort. All attributes need to be Serializable, all sorting attributes need to be Comparable
      • hasNext

        public boolean hasNext()
        Description copied from interface: FeatureIterator
        Does another Feature exist in this Iteration.

        Iterator defin: Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

        Specified by:
        hasNext in interface FeatureIterator<SimpleFeature>
        true if more Features exist, false otherwise.
      • next

        public SimpleFeature next()
                           throws NoSuchElementException
        Description copied from interface: FeatureIterator
        Get the next Feature in this iteration.
        Specified by:
        next in interface FeatureIterator<SimpleFeature>
        The next Feature
        NoSuchElementException - If no more Features exist.
      • close

        public void close()
        Description copied from interface: FeatureIterator
        Closes this iterator and releases any system resources associated with it.
        Specified by:
        close in interface AutoCloseable
        Specified by:
        close in interface Closeable
        Specified by:
        close in interface FeatureIterator<SimpleFeature>