merge hugegrpah master (#16)

* merge hugegrpah master

* version 0.13.0

* improve min version support to 0.13.0

Author: zyxxoo

pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <artifactId>hugegraph</artifactId>
         <groupId>com.baidu.hugegraph</groupId>
-        <version>0.12.0</version>
+        <version>0.13.0</version>
         <relativePath>../hugegraph/pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>

src/main/java/com/baidu/hugegraph/backend/store/tikv/TikvStdSessions.java

@@ -590,7 +590,8 @@ private boolean match(int expected) {
         @Override
         public boolean hasNext() {
             // Update position for paging
-            if (!this.iter.hasNext()) {
+            matched = this.iter.hasNext();
+            if (!matched) {
                 this.position = null;
                 this.close();
                 return false;

src/main/java/com/baidu/hugegraph/backend/store/tikv/TikvStoreProvider.java

@@ -23,6 +23,7 @@
 import com.baidu.hugegraph.backend.store.BackendStore;
 import com.baidu.hugegraph.backend.store.tikv.TikvStore.TikvGraphStore;
 import com.baidu.hugegraph.backend.store.tikv.TikvStore.TikvSchemaStore;
+import com.baidu.hugegraph.config.HugeConfig;
 
 public class TikvStoreProvider extends AbstractBackendStoreProvider {
 
@@ -33,12 +34,12 @@ protected String namespace() {
     }
 
     @Override
-    protected BackendStore newSchemaStore(String store) {
+    protected BackendStore newSchemaStore(HugeConfig config, String store) {
         return new TikvSchemaStore(this, this.namespace(), store);
     }
 
     @Override
-    protected BackendStore newGraphStore(String store) {
+    protected BackendStore newGraphStore(HugeConfig config, String store) {
         return new TikvGraphStore(this, this.namespace(), store);
     }
 

src/main/java/com/baidu/hugegraph/backend/store/tikv/TikvTable.java

@@ -44,7 +44,7 @@
 import com.baidu.hugegraph.backend.store.BackendEntry;
 import com.baidu.hugegraph.backend.store.BackendEntry.BackendColumn;
 import com.baidu.hugegraph.backend.store.BackendEntry.BackendColumnIterator;
-import com.baidu.hugegraph.backend.store.BackendEntry.BackendColumnIteratorWrapper;
+import com.baidu.hugegraph.backend.store.BackendEntry.BackendColumnIterator.BackendColumnIteratorWrapper;
 import com.baidu.hugegraph.backend.store.BackendEntryIterator;
 import com.baidu.hugegraph.backend.store.BackendTable;
 import com.baidu.hugegraph.backend.store.Shard;
@@ -210,7 +210,7 @@ protected BackendColumnIterator getById(Session session, Id id) {
             return BackendColumnIterator.empty();
         }
         BackendColumn col = BackendColumn.of(id.asBytes(), value);
-        return new BackendEntry.BackendColumnIteratorWrapper(col);
+        return BackendColumnIterator.iterator(col);
     }
 
     protected BackendColumnIterator queryByPrefix(Session session,
@@ -259,7 +259,7 @@ protected BackendColumnIterator queryByRange(Session session, Shard shard,
             start = position;
         }
         if (start == null) {
-            start = ShardSpliter.START_BYTES;
+            start = ShardSplitter.START_BYTES;
         }
         int type = Session.SCAN_GTE_BEGIN;
         if (end != null) {
@@ -281,7 +281,7 @@ protected static final BackendEntryIterator newEntryIterator(
         });
     }
 
-    private static class TikvShardSpliter extends ShardSpliter<Session> {
+    private static class TikvShardSpliter extends ShardSplitter<Session> {
 
         public TikvShardSpliter(String table) {
             super(table);

src/main/java/com/baidu/hugegraph/tikv/TikvPlugin.java

@@ -32,12 +32,12 @@ public void register() {
 
     @Override
     public String supportsMinVersion() {
-        return "0.12.0";
+        return "0.13.0";
     }
 
     @Override
     public String supportsMaxVersion() {
-        return "0.13";
+        return "0.14";
     }
 
     public static void main(String[] args) {