Disclose less

2 files changed, 43 insertions, 28 deletions

diff --git a/container-search/src/main/java/com/yahoo/prelude/query/Item.java b/container-search/src/main/java/com/yahoo/prelude/query/Item.java
index 0ba107e6e8e..679e733a651 100644
--- a/container-search/src/main/java/com/yahoo/prelude/query/Item.java
+++ b/container-search/src/main/java/com/yahoo/prelude/query/Item.java
@@ -31,7 +31,7 @@ public abstract class Item implements Cloneable {
      * The definitions in Item.ItemType must match the ones in
      * searchlib/src/vespa/searchlib/parsequery/parse.h
      */
-    public static enum ItemType {
+    public enum ItemType {
         OR(0),
         AND(1),
         NOT(2),
@@ -122,10 +122,10 @@ public abstract class Item implements Cloneable {
     // Move this to an object which can take care of being a weighted bidirectional reference more elegantly and safely.
     protected Item connectedItem;
     protected Item connectedBacklink;
-    protected double connectivity;
+    protected double connectivity = 0;
 
     /** Explicit term significance */
-    protected double significance;
+    protected double significance = 0;
     protected boolean explicitSignificance = false;
 
     /** Whether this item is eligible for change by query rewriters (false) or should be kept as-is (true) */
@@ -197,9 +197,7 @@ public abstract class Item implements Cloneable {
         annotations.put(key, value);
     }
 
-    /**
-     * Returns an annotation on this item, or null if the annotation is not set
-     */
+    /** Returns an annotation on this item, or null if the annotation is not set */
     public Object getAnnotation(String annotation) {
         if (annotations == null) {
             return null;
@@ -273,7 +271,7 @@ public abstract class Item implements Cloneable {
      * Returns an integer that contains all feature flags for this item. This must be kept in sync with the flags
      * defined in searchlib/parsequery/parse.h.
      *
-     * @return The feature flags.
+     * @return the feature flags
      */
     private byte getFlagsFeature() {
         byte FLAGS_NORANK = 0x01;
@@ -313,17 +311,15 @@ public abstract class Item implements Cloneable {
     public abstract int getTermCount();
 
     /**
-     * <p>Returns the canonical query language string of this item.</p>
-     *
-     * <p>The canonical language represent an item by the string
+     * Returns the canonical query language string of this item.
+     * The canonical language represent an item by the string
      * <pre>
      * ([itemName] [body])
      * </pre>
      * where the body may recursively be other items.
      *
      * <p>
-     * TODO: Change the output query language into a canonical form of the input
-     *       query language
+     * TODO (Vespa 8?): Output YQL
      */
     @Override
     public String toString() {
@@ -350,7 +346,7 @@ public abstract class Item implements Cloneable {
     }
 
     /**
-     * Returns whether or not this item should be parethized when printed.
+     * Returns whether this item should be parethized when printed.
      * Default is false - no parentheses
      */
     protected boolean shouldParenthize() {
@@ -440,7 +436,7 @@ public abstract class Item implements Cloneable {
     }
 
     /**
-     * Sets whether or not this term item should affect ranking.
+     * Sets whether this term item should affect ranking.
      * If set to false this term is not exposed to the ranking framework in the search backend.
      */
     public void setRanked(boolean isRanked) {
@@ -453,7 +449,7 @@ public abstract class Item implements Cloneable {
     }
 
     /**
-     * Sets whether or not position data should be used when ranking this term item.
+     * Sets whether position data should be used when ranking this term item.
      * If set to false the search backend uses fast bit vector data structures when matching on this term
      * and only a few simple ranking features will be available when ranking this term.
      * Note that setting this to false also saves a lot of CPU during matching as bit vector data structures are used.
@@ -462,20 +458,24 @@ public abstract class Item implements Cloneable {
         this.usePositionData = usePositionData;
     }
 
-    /** Returns whether or not position data should be used when ranking this item */
+    /** Returns whether position data should be used when ranking this item */
     public boolean usePositionData() {
         return usePositionData;
     }
 
     public void disclose(Discloser discloser) {
-        discloser.addProperty("connectivity", connectivity);
-        discloser.addProperty("connectedItem", connectedItem); // reference
+        if (connectivity != 0)
+            discloser.addProperty("connectivity", connectivity);
+        if (connectedItem != null)
+            discloser.addProperty("connectedItem", connectedItem); // reference
 
         discloser.addProperty("creator", creator);
-        discloser.addProperty("explicitSignificance", explicitSignificance);
         discloser.addProperty("isRanked", isRanked);
         discloser.addProperty("usePositionData", usePositionData);
-        discloser.addProperty("significance", significance);
+
+        if (explicitSignificance)
+            discloser.addProperty("significance", significance);
+
         discloser.addProperty("weight", weight);
 
         if (label != null)
diff --git a/container-search/src/test/java/com/yahoo/prelude/query/test/WandItemTestCase.java b/container-search/src/test/java/com/yahoo/prelude/query/test/WandItemTestCase.java
index 49621c3ef8a..2c06dd0034e 100644
--- a/container-search/src/test/java/com/yahoo/prelude/query/test/WandItemTestCase.java
+++ b/container-search/src/test/java/com/yahoo/prelude/query/test/WandItemTestCase.java
@@ -5,6 +5,7 @@ import com.yahoo.prelude.query.Item;
 import com.yahoo.prelude.query.PureWeightedString;
 import com.yahoo.prelude.query.WandItem;
 import com.yahoo.prelude.query.textualrepresentation.Discloser;
+import com.yahoo.prelude.query.textualrepresentation.TextualQueryRepresentation;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
@@ -20,14 +21,6 @@ public class WandItemTestCase {
 
     private static final double DELTA = 0.0000001;
 
-    private static WandItem createSimpleItem() {
-        WandItem item = new WandItem("myfield", 10);
-        item.addToken("foo", 30);
-        item.setScoreThreshold(20);
-        item.setThresholdBoostFactor(2.0);
-        return item;
-    }
-
     @Test
     public void requireThatWandItemCanBeConstructed() {
         WandItem item = new WandItem("myfield", 10);
@@ -82,4 +75,26 @@ public class WandItemTestCase {
         assertEquals("myfield", discloser.props.get("index"));
     }
 
+    @Test
+    public void testTextualRepresentation() {
+        WandItem item = new WandItem("myfield", 10);
+        item.addToken("term1", 10);
+        item.setScoreThreshold(20);
+        item.setThresholdBoostFactor(2.0);
+        assertEquals("WAND[creator=ORIG index=\"myfield\" isRanked=true scoreThreshold=20.0 targetNumHits=10 thresholdBoostFactor=2.0 usePositionData=true weight=100]{\n" +
+                     "  PURE_WEIGHTED_STRING[weight=10]{\n" +
+                     "    \"term1\"\n" +
+                     "  }\n" +
+                     "}\n",
+                     new TextualQueryRepresentation(item).toString());
+    }
+
+    private static WandItem createSimpleItem() {
+        WandItem item = new WandItem("myfield", 10);
+        item.addToken("foo", 30);
+        item.setScoreThreshold(20);
+        item.setThresholdBoostFactor(2.0);
+        return item;
+    }
+
 }