Examples with InstanceCollection2 eu.esdihumboldt.hale.common.instance.model.ext.InstanceCollection2 used on opensource projects

Example 1 with InstanceCollection2

use of eu.esdihumboldt.hale.common.instance.model.ext.InstanceCollection2 in project hale by halestudio.

the class FilteredInstanceCollection method applyFilter.

/**
 * Create an instance collection that applies a filter to the given instance
 * collection.
 *
 * @param instances the instance collection to filter
 * @param filter the filter
 * @return the filtered instance collection
 */
public static InstanceCollection applyFilter(InstanceCollection instances, Filter filter) {
    if (filter instanceof TypeFilter && instances instanceof InstanceCollection2) {
        /*
			 * For type filters check if we can make use of fan-out.
			 */
        InstanceCollection2 instances2 = (InstanceCollection2) instances;
        if (instances2.supportsFanout()) {
            TypeDefinition type = ((TypeFilter) filter).getType();
            InstanceCollection result = instances2.fanout().get(type);
            if (result == null) {
                result = EmptyInstanceCollection.INSTANCE;
            }
            return result;
        }
    }
    // create a filtered collection
    return new FilteredInstanceCollection(instances, filter);
}