minor cleanups from review

community/kernel-api/src/main/java/org/neo4j/internal/kernel/api/IndexQuery.java

@@ -31,6 +31,12 @@
 
 public abstract class IndexQuery
 {
+    /**
+     * Scans all entries in the index.
+     */
+    @SuppressWarnings( "StaticInitializerReferencesSubClass" )
+    public static ExistsPredicate SCAN = new ExistsPredicate( -1 );
+
     /**
      * Searches the index for all entries that has the given property.
      *

community/kernel-api/src/test/java/org/neo4j/internal/kernel/api/NodeValueIndexCursorTestBase.java

@@ -28,8 +28,6 @@
 import org.neo4j.graphdb.schema.IndexDefinition;
 
 import static java.util.concurrent.TimeUnit.SECONDS;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
 import static org.neo4j.graphdb.Label.label;
 import static org.neo4j.internal.kernel.api.ExplicitIndexCursorTestBase.assertFoundNodes;
 

community/kernel/src/main/java/org/neo4j/kernel/impl/newapi/Store.java → community/kernel/src/main/java/org/neo4j/kernel/impl/newapi/AllStoreHolder.java

@@ -63,7 +63,7 @@
 import static org.neo4j.kernel.impl.store.record.AbstractBaseRecord.NO_ID;
 import static org.neo4j.kernel.impl.store.record.RecordLoad.NORMAL;
 
-class Store extends Read implements Token
+class AllStoreHolder extends Read implements Token
 {
     private final RelationshipGroupStore groupStore;
     private final PropertyStore propertyStore;
@@ -73,7 +73,7 @@ class Store extends Read implements Token
     private final StoreReadLayer read;
     private final Lazy<ExplicitIndexTransactionState> explicitIndexes;
 
-    Store( RecordStorageEngine engine, Supplier<ExplicitIndexTransactionState> explicitIndexes )
+    AllStoreHolder( RecordStorageEngine engine, Supplier<ExplicitIndexTransactionState> explicitIndexes )
     {
         read = engine.storeReadLayer();
         statement = read.newStatement();

community/kernel/src/main/java/org/neo4j/kernel/impl/newapi/NodeCursor.java

@@ -41,7 +41,7 @@ class NodeCursor extends NodeRecord implements org.neo4j.internal.kernel.api.Nod
 
     NodeCursor( Read read )
     {
-        super( -1 );
+        super( NO_ID );
         this.read = read;
         this.labelCursor = read.labelCursor();
     }
@@ -184,6 +184,7 @@ public void close()
 
     private void reset()
     {
-        setId( next = NO_ID );
+        next = NO_ID;
+        setId( NO_ID );
     }
 }

community/kernel/src/main/java/org/neo4j/kernel/impl/newapi/PropertyCursor.java

@@ -56,7 +56,7 @@ public class PropertyCursor extends PropertyRecord implements org.neo4j.internal
 
     public PropertyCursor( Read read )
     {
-        super( -1 );
+        super( NO_ID );
         this.read = read;
     }
 

community/kernel/src/main/java/org/neo4j/kernel/impl/newapi/TempKernel.java

@@ -79,7 +79,7 @@ public void close()
     {
     }
 
-    private static class Transaction extends Store implements org.neo4j.internal.kernel.api.Transaction
+    private static class Transaction extends AllStoreHolder implements org.neo4j.internal.kernel.api.Transaction
     {
         Transaction( RecordStorageEngine engine, KernelTransactions ktx )
         {

community/kernel/src/main/java/org/neo4j/storageengine/api/schema/IndexReader.java

@@ -27,6 +27,8 @@
 import org.neo4j.kernel.impl.newapi.IndexCursorProgressor;
 import org.neo4j.values.storable.Value;
 
+import static org.neo4j.internal.kernel.api.IndexQuery.SCAN;
+
 /**
  * Reader for an index. Must honor repeatable reads, which means that if a lookup is executed multiple times the
  * same result set must be returned.
@@ -127,8 +129,7 @@ default void scan( IndexCursorProgressor.NodeValueCursor cursor )
             // 2. For compound indexes all nodes have all properties assigned.
             // While we violate 1. here, we are at least "well intended", we don't actually care about what the key is.
             // 2. holds because compound indexes are only created through node keys.
-            IndexQuery.ExistsPredicate scan = IndexQuery.exists( -1 );
-            cursor.initialize( new NodeValueIndexProgressor( query( scan ), cursor ), null );
+            cursor.initialize( new NodeValueIndexProgressor( query( SCAN ), cursor ), null );
         }
         catch ( IndexNotApplicableKernelException e )
         {