public AbstractMappingFeatureIterator(
AppSchemaDataAccess store,
FeatureTypeMapping mapping,
Query query,
Query unrolledQuery,
boolean removeQueryLimitIfDenormalised,
boolean hasPostFilter)
throws IOException {
this.store = store;
this.attf = new AppSchemaFeatureFactoryImpl();
this.mapping = mapping;
// validate and initialise resolve options
Hints hints = query.getHints();
ResolveValueType resolveVal = (ResolveValueType) hints.get(Hints.RESOLVE);
boolean resolve =
ResolveValueType.ALL.equals(resolveVal) || ResolveValueType.LOCAL.equals(resolveVal);
if (!resolve && resolveVal != null && !ResolveValueType.NONE.equals(resolveVal)) {
throw new IllegalArgumentException(
"Resolve:" + resolveVal.getName() + " is not supported in app-schema!");
}
Integer atd = (Integer) hints.get(Hints.ASSOCIATION_TRAVERSAL_DEPTH);
resolveDepth = resolve ? atd == null ? 0 : atd : 0;
resolveTimeOut = (Integer) hints.get(Hints.RESOLVE_TIMEOUT);
namespaces = mapping.getNamespaces();
namespaceAwareFilterFactory = new FilterFactoryImplNamespaceAware(namespaces);
Object includeProps = query.getHints().get(Query.INCLUDE_MANDATORY_PROPS);
includeMandatory = includeProps instanceof Boolean && ((Boolean) includeProps).booleanValue();
if (mapping.isDenormalised()) {
// we need to disable the max number of features retrieved so we can
// sort them manually just in case the data is denormalised. Do this
// by overriding the max features for this query just before executing
// it. Note that the original maxFeatures value was copied to
// this.requestMaxFeatures in the constructor and will be re-applied after
// the rows have been returned
if (removeQueryLimitIfDenormalised) {
this.dataMaxFeatures = 1000000;
if (hasPostFilter) {
// true max features will be handled in PostFilteringMappingFeatureIterator
this.requestMaxFeatures = 1000000;
} else {
this.requestMaxFeatures = query.getMaxFeatures();
}
} else {
this.dataMaxFeatures = query.getMaxFeatures();
this.requestMaxFeatures = query.getMaxFeatures();
}
} else {
this.requestMaxFeatures = query.getMaxFeatures();
this.dataMaxFeatures = query.getMaxFeatures();
}
if (unrolledQuery == null) {
unrolledQuery = getUnrolledQuery(query);
if (query instanceof JoiningQuery && unrolledQuery instanceof JoiningQuery) {
((JoiningQuery) unrolledQuery).setRootMapping(((JoiningQuery) query).getRootMapping());
}
}
// NC - property names
if (query != null && query.getProperties() != null) {
setPropertyNames(query.getProperties());
} else {
setPropertyNames(null); // we need the actual property names (not surrogates) to do
// this...
}
xpathAttributeBuilder = new XPath();
xpathAttributeBuilder.setFeatureFactory(attf);
initialiseSourceFeatures(mapping, unrolledQuery, query.getCoordinateSystemReproject());
xpathAttributeBuilder.setFilterFactory(namespaceAwareFilterFactory);
}
