Module com.esri.arcgisruntime
Package com.esri.arcgisruntime.geometry

Class ImmutablePartCollection

java.lang.Object
java.util.AbstractCollection<ImmutablePart>
java.util.AbstractList<ImmutablePart>
com.esri.arcgisruntime.geometry.ImmutablePartCollection
All Implemented Interfaces:
Iterable<ImmutablePart>, Collection<ImmutablePart>, List<ImmutablePart>, SequencedCollection<ImmutablePart>
public final class ImmutablePartCollection extends AbstractList<ImmutablePart>
Represents an immutable collection of ImmutableParts that compose a Multipart geometry (Polygon or Polyline). Use the ImmutablePartCollection returned from Multipart.getParts() to iterate through all of the parts in a Multipart.

Because geometries themselves are immutable, the collections they are composed of are also immutable. For geometry editing or creation workflows, a mutable PartCollection is used instead. PartCollection has constructors that take an ImmutablePartCollection, allowing creation of new geometries from parts of existing ones.

Since:
100.0.0
See Also:

  • Method Details

    • getSpatialReference

      public SpatialReference getSpatialReference()
      Gets the SpatialReference of geometries in the parts in this collection. The SpatialReference defines how the coordinates of the geometries correspond to locations in the real world. May be null.
      Returns:
      the SpatialReference of the geometries in the parts in this collection
      Since:
      100.0.0

    • get

      public ImmutablePart get(int index)
      Gets the ImmutablePart at the given index position in this ImmutablePartCollection. Use this to access the individual immutable parts that compose a Multipart geometry.
      Specified by:
      get in interface List<ImmutablePart>
      Specified by:
      get in class AbstractList<ImmutablePart>
      Parameters:
      index - the index of the ImmutablePart to return
      Returns:
      the ImmutablePart at the given index
      Throws:
      IndexOutOfBoundsException - if index &lt; 0 || index &gt;= size()
      Since:
      100.0.0

    • getPartsAsPoints

      public Iterable<Point> getPartsAsPoints()
      Returns a copy of an iterable containing all the Points in all of the parts of this ImmutablePartCollection, ordered continuously from the first to last part in this collection. If the ImmutablePartCollection isEmpty(), this method returns an empty iterable.

      The points represent the ends of the Segments in all of the ImmutableParts in this collection (all the vertices in the Multipart geometry. Where two adjacent segments share a start and end location (there is no gap between the segments), this is represented by a single Point.

      Alternatively, to iterate the Points in each part separately, call get or java.util.AbstractList.iterator() to get an ImmutablePart, then call ImmutablePart.getPoint(int) or ImmutablePart.getPoints().

      Returns:
      an iterable set of all the Points in all the parts of this ImmutablePartCollection
      Since:
      100.0.0

    • size

      public int size()
      Returns the number of ImmutableParts in this ImmutablePartCollection. Use this to find the maximum index for calling get(int).
      Specified by:
      size in interface Collection<ImmutablePart>
      Specified by:
      size in interface List<ImmutablePart>
      Specified by:
      size in class AbstractCollection<ImmutablePart>
      Since:
      100.0.0
      See Also:

    • indexOf

      public int indexOf(Object o)
      Specified by:
      indexOf in interface List<ImmutablePart>
      Overrides:
      indexOf in class AbstractList<ImmutablePart>

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface Collection<ImmutablePart>
      Specified by:
      isEmpty in interface List<ImmutablePart>
      Overrides:
      isEmpty in class AbstractCollection<ImmutablePart>