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ObjectDecoratingSimpleFeatureCollection
FilteringSimpleFeatureCollection
public class FilteringSimpleFeatureCollection
Decorates a feature collection with one that filters content.
Constructor Summary | |
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FilteringSimpleFeatureCollection(FeatureCollection<SimpleFeatureType,SimpleFeature> delegate,
Filter filter)
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FilteringSimpleFeatureCollection(SimpleFeatureCollection delegate,
Filter filter)
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Method Summary | ||
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void |
close(SimpleFeatureIterator close)
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boolean |
contains(Object o)
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boolean |
containsAll(Collection<?> c)
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SimpleFeatureIterator |
features()
Obtain a SimpleFeatureIterator of the Features within this SimpleFeatureCollection. |
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ReferencedEnvelope |
getBounds()
Get the total bounds of this collection which is calculated by doing a union of the bounds of each feature inside of it |
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boolean |
isEmpty()
Returns true if this feature collection contains no features. |
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FeatureReader<SimpleFeatureType,SimpleFeature> |
reader()
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int |
size()
Please note this operation may be expensive when working with remote content. |
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SimpleFeatureCollection |
sort(SortBy order)
Obtained sorted contents. |
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SimpleFeatureCollection |
subCollection(Filter filter)
SimpleFeatureCollection "view" indicated by provided filter. |
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Object[] |
toArray()
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toArray(T[] a)
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Methods inherited from class DecoratingSimpleFeatureCollection |
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accepts, canDelegate, equals, getID, getSchema, hashCode |
Methods inherited from class Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public FilteringSimpleFeatureCollection(FeatureCollection<SimpleFeatureType,SimpleFeature> delegate, Filter filter)
public FilteringSimpleFeatureCollection(SimpleFeatureCollection delegate, Filter filter)
Method Detail |
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public SimpleFeatureIterator features()
SimpleFeatureCollection
The implementation of FeatureIterator must adhere to the rules of
fail-fast concurrent modification. In addition (to allow for
resource backed collections) the SimpleFeatureIterator.close()
method must be called.
Example use:
SimpleFeatureIterator iterator=collection.features();
try {
while( iterator.hasNext() ){
SimpleFeature feature = iterator.next();
System.out.println( feature.getID() );
}
}
finally {
iterator.close();
}
features
in interface SimpleFeatureCollection
features
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
features
in class DecoratingSimpleFeatureCollection
public void close(SimpleFeatureIterator close)
public SimpleFeatureCollection subCollection(Filter filter)
FeatureCollection
The contents of the returned SimpleFeatureCollection are determined by applying the provider Filter to the entire contents of this FeatureCollection. The result is "live" and modifications will be shared.
This method is used cut down on the number of filter based methods required for a useful SimpleFeatureCollection construct. The FeatureCollections returned really should be considered as a temporary "view" used to control the range of a removeAll, or modify operation.
Example Use:
collection.subCollection( filter ).clear();
The above recommended use is agreement with the Collections API precident of
List.subList( start, end ).
The results of subCollection:
subCollection
in interface SimpleFeatureCollection
subCollection
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
subCollection
in class DecoratingSimpleFeatureCollection
FeatureList
public SimpleFeatureCollection sort(SortBy order)
FeatureCollection
This method may not be supported by all implementations, consider the use of FeatureSource.features( Query ).
sort
in interface SimpleFeatureCollection
sort
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
sort
in class DecoratingSimpleFeatureCollection
order
- Sort order
public int size()
FeatureCollection
size
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
size
in class DecoratingSimpleFeatureCollection
Collection.size()
public boolean isEmpty()
FeatureCollection
isEmpty
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
isEmpty
in class DecoratingSimpleFeatureCollection
public Object[] toArray()
toArray
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
toArray
in class DecoratingSimpleFeatureCollection
Collection.toArray()
public <T> T[] toArray(T[] a)
toArray
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
toArray
in class DecoratingSimpleFeatureCollection
Collection.toArray(Object[])
public boolean contains(Object o)
contains
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
contains
in class DecoratingSimpleFeatureCollection
Collection.contains(Object)
public boolean containsAll(Collection<?> c)
containsAll
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
containsAll
in class DecoratingSimpleFeatureCollection
Collection.containsAll(Collection)
public FeatureReader<SimpleFeatureType,SimpleFeature> reader() throws IOException
IOException
public ReferencedEnvelope getBounds()
FeatureCollection
getBounds
in interface FeatureCollection<SimpleFeatureType,SimpleFeature>
getBounds
in class DecoratingSimpleFeatureCollection
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