Adding the missing javadocs.

Author: anu3990

marklogic-client-api/src/main/java/com/marklogic/client/datamovement/JacksonCSVSplitter.java

@@ -44,20 +44,36 @@ public class JacksonCSVSplitter implements Splitter<JacksonHandle> {
     private long count = 0;
     private ArrayNode headers = null;
 
+    /**
+     * @return the CsvMapper for the current instance.
+     */
     public CsvMapper getCsvMapper() {
         return csvMapper;
     }
 
+    /**
+     * Used to set the CsvSchema for the current instance.
+     * @param schema is the CsvSchema passed in.
+     * @return an instance of JacksonCSVSplitter with CsvSchema set to the parameter.
+     */
     public JacksonCSVSplitter withCsvSchema(CsvSchema schema) {
         this.csvSchema = schema;
         return this;
     } 
 
+    /**
+     * Used to set the CsvMapper for the current instance.
+     * @param mapper is the CsvMapper passed in.
+     * @return an instance of JacksonCSVSplitter with CsvMapper set to the parameter.
+     */
     public JacksonCSVSplitter withCsvMapper(CsvMapper mapper) {
         this.csvMapper = mapper;
         return this;
     }
 
+    /**
+     * @return the CsvSchema for the current instance.
+     */
     public CsvSchema getCsvSchema() {
         return csvSchema;
     }
@@ -77,7 +93,7 @@ private CsvMapper configureCsvMapper() {
         return csvMapper;
     }
 
-    /*
+    /**
      * Takes the input stream and converts it into a stream of JacksonHandle by setting the schema 
      *  and wrapping the JsonNode into JacksonHandle.
      * @param input the input stream passed in.
@@ -92,7 +108,7 @@ public Stream<JacksonHandle> split(InputStream input) throws Exception {
         return configureInput(configureObjReader().readValues(input));
     }
 
-    /*
+    /**
      * Takes the input stream and converts it into a stream of JacksonHandle by setting the schema 
      *  and wrapping the JsonNode into JacksonHandle.
      * @param input the Reader stream passed in.
@@ -106,10 +122,17 @@ public Stream<JacksonHandle> split(Reader input) throws Exception  {
         return configureInput(configureObjReader().readValues(input));
     }
 
+    /**
+     * @return the number of JsonNodes found in the input stream.
+     */
     @Override
     public long getCount() { 
         return this.count;
     }
+    
+    /**
+     * @return the headers found in the csv file.
+     */
     public ArrayNode getHeaders() {
         return this.headers;
     }

marklogic-client-api/src/main/java/com/marklogic/client/datamovement/Splitter.java

@@ -1,13 +1,42 @@
+/*
+ * Copyright 2019 MarkLogic Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.marklogic.client.datamovement;
 
 import java.io.InputStream;
 import java.util.stream.Stream;
 
 import com.marklogic.client.io.marker.AbstractWriteHandle;
 
+/**
+ * To facilitate CSV splitting, Splitter allows to implement the split method where the 
+ *  incoming input stream is converted to a stream of another object, for example JacksonHandle 
+ *  and gives an option to keep a record of the number of objects created using getCount method.
+ */
 public interface Splitter<T extends AbstractWriteHandle> {
+    /**
+     * Converts the incoming input stream to a stream of object T.
+     * @param input is the incoming input stream.
+     * @return a stream of T.
+     */
     Stream<T> split(InputStream input) throws Exception;
 
+    /**
+     * @return the number of objects in the stream.
+     */
     long getCount();
 
 }