org.apache.commons.collections.iterators.TransformIterator Java Examples
The following examples show how to use
org.apache.commons.collections.iterators.TransformIterator.
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Example #1
Source File: XJoinQParserPlugin.java From BioSolr with Apache License 2.0 | 6 votes |
@Override @SuppressWarnings("unchecked") public Query parse() throws SyntaxError { Method method = Method.valueOf(localParams.get(METHOD, Method.termsFilter.name())); JoinSpec<T> js = JoinSpec.parse(localParams.get(QueryParsing.V)); Iterator<T> it = js.iterator(this); if (joinField == null) { throw new Exception("No XJoin component referenced by query"); } FieldType ft = req.getSchema().getFieldTypeNoEx(joinField); Iterator<BytesRef> bytesRefs = new TransformIterator(it, transformer(ft)); if (! bytesRefs.hasNext()) { return new BooleanQuery.Builder().build(); // matches nothing } Query query = method.makeQuery(joinField, bytesRefs); return new SolrConstantScoreQuery(new QueryWrapperFilter(query)); }
Example #2
Source File: XJoinQParserPlugin.java From BioSolr with Apache License 2.0 | 6 votes |
@Override @SuppressWarnings("unchecked") public Query parse() throws SyntaxError { Method method = Method.valueOf(localParams.get(METHOD, Method.termsFilter.name())); JoinSpec<T> js = JoinSpec.parse(localParams.get(QueryParsing.V)); Iterator<T> it = js.iterator(this); if (joinField == null) { throw new Exception("No XJoin component referenced by query"); } FieldType ft = req.getSchema().getFieldTypeNoEx(joinField); Iterator<BytesRef> bytesRefs = new TransformIterator(it, transformer(ft)); if (! bytesRefs.hasNext()) { return new BooleanQuery.Builder().build(); // matches nothing } Query query = method.makeQuery(joinField, bytesRefs); return new SolrConstantScoreQuery(new QueryWrapperFilter(query)); }
Example #3
Source File: XJoinQParserPlugin.java From BioSolr with Apache License 2.0 | 6 votes |
@Override @SuppressWarnings("unchecked") public Query parse() throws SyntaxError { Method method = Method.valueOf(localParams.get(METHOD, Method.termsFilter.name())); JoinSpec<T> js = JoinSpec.parse(localParams.get(QueryParsing.V)); Iterator<T> it = js.iterator(this); if (joinField == null) { throw new Exception("No XJoin component referenced by query"); } FieldType ft = req.getSchema().getFieldTypeNoEx(joinField); Iterator<BytesRef> bytesRefs = new TransformIterator(it, transformer(ft)); if (! bytesRefs.hasNext()) { return new BooleanQuery(); // matches nothing } return new SolrConstantScoreQuery(method.makeFilter(joinField, bytesRefs)); }
Example #4
Source File: ChildrenDataSourceServlet.java From commerce-cif-connector with Apache License 2.0 | 4 votes |
@SuppressWarnings("unchecked") @Override public Iterator<Resource> listChildren() { return new TransformIterator(new FilterIterator(super.listChildren(), predicate), o -> new PredicatedResourceWrapper( (Resource) o, predicate)); }
Example #5
Source File: IteratorUtils.java From Penetration_Testing_POC with Apache License 2.0 | 3 votes |
/** * Gets an iterator that transforms the elements of another iterator. * <p> * The transformation occurs during the next() method and the underlying * iterator is unaffected by the transformation. * * @param iterator the iterator to use, not null * @param transform the transform to use, not null * @return a new transforming iterator * @throws NullPointerException if either parameter is null */ public static Iterator transformedIterator(Iterator iterator, Transformer transform) { if (iterator == null) { throw new NullPointerException("Iterator must not be null"); } if (transform == null) { throw new NullPointerException("Transformer must not be null"); } return new TransformIterator(iterator, transform); }