1 files changed, 42 insertions, 0 deletions
diff --git a/predicate-search/src/main/java/com/yahoo/search/predicate/index/IntervalPostingList.java b/predicate-search/src/main/java/com/yahoo/search/predicate/index/IntervalPostingList.java
new file mode 100644
index 00000000000..40e8bf39c98
--- /dev/null
+++ b/predicate-search/src/main/java/com/yahoo/search/predicate/index/IntervalPostingList.java
@@ -0,0 +1,42 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.predicate.index;
+
+/**
+ * Implementation of PostingList for regular features that store
+ * their intervals and nothing else.
+ * @author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
+ * @author bjorncs
+ */
+public class IntervalPostingList extends MultiIntervalPostingList {
+    private final PredicateIntervalStore store;
+    private int[] currentIntervals;
+    private int currentIntervalIndex;
+    private int currentInterval;
+
+    public IntervalPostingList(PredicateIntervalStore store, int[] docIds, int[] dataRefs, long subquery) {
+        super(docIds, dataRefs, subquery);
+        this.store = store;
+    }
+
+    @Override
+    protected boolean prepareIntervals(int dataRef) {
+        currentIntervals = store.get(dataRef);
+        currentIntervalIndex = 1;
+        currentInterval = currentIntervals[0];
+        return true;
+    }
+
+    @Override
+    public boolean nextInterval() {
+        if (currentIntervalIndex < currentIntervals.length) {
+            this.currentInterval = currentIntervals[currentIntervalIndex++];
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public int getInterval() {
+        return currentInterval;
+    }
+}