added default batchSize to configuration

Author: Achim Brandt

src/main/java/com/arangodb/ArangoConfigure.java

@@ -95,6 +95,11 @@ public class ArangoConfigure {
 
 	boolean staleConnectionCheck = false;
 
+	/**
+	 * the default ArangoDB cursor batch size
+	 */
+	private int batchSize = 20;
+
 	BatchHttpManager httpManager;
 
 	public ArangoConfigure() {
@@ -237,6 +242,11 @@ public void loadProperties(String propertyPath) {
 					setStaleConnectionCheck(Boolean.parseBoolean(staleConnectionCheck));
 				}
 
+				String batchSize = prop.getProperty("batchSize");
+				if (batchSize != null) {
+					setBatchSize(Integer.parseInt(batchSize));
+				}
+
 			}
 		} catch (IOException e) {
 			logger.warn("load property error", e);
@@ -567,4 +577,12 @@ public void setConnectRetryWait(int connectRetryWait) {
 		this.connectRetryWait = connectRetryWait;
 	}
 
+	public int getBatchSize() {
+		return batchSize;
+	}
+
+	public void setBatchSize(int batchSize) {
+		this.batchSize = batchSize;
+	}
+
 }

src/main/java/com/arangodb/ArangoDriver.java

@@ -31,6 +31,7 @@
 import com.arangodb.entity.BatchResponseEntity;
 import com.arangodb.entity.BooleanResultEntity;
 import com.arangodb.entity.CollectionEntity;
+import com.arangodb.entity.CollectionKeyOption;
 import com.arangodb.entity.CollectionOptions;
 import com.arangodb.entity.CollectionsEntity;
 import com.arangodb.entity.CursorEntity;
@@ -2307,7 +2308,7 @@ public <T> CursorEntity<T> executeCursorEntityQuery(
 	 * @return default AqlQueryOptions object
 	 */
 	public AqlQueryOptions getDefaultAqlQueryOptions() {
-		return new AqlQueryOptions().setBatchSize(20).setCount(false).setFullCount(false);
+		return new AqlQueryOptions().setBatchSize(configure.getBatchSize()).setCount(false).setFullCount(false);
 	}
 
 	/**