Fix javadoc for module "monitoring" (#396)

Author: dr0i

metafacture-monitoring/src/main/java/org/metafacture/monitoring/ObjectBatchLogger.java

@@ -61,6 +61,10 @@ public final class ObjectBatchLogger<T> extends DefaultObjectPipe<T, ObjectRecei
     private long recordCount;
     private long batchCount;
 
+    /**
+     * Constructs a ObjectBatchLogger with the not changeable default format of
+     * {@value #DEFAULT_FORMAT}.
+     */
     public ObjectBatchLogger() {
         this.format = DEFAULT_FORMAT;
 
@@ -70,7 +74,14 @@ public ObjectBatchLogger(final String format) {
         this.format = format;
     }
 
-    public ObjectBatchLogger(final String format, final Map<String, String> vars) {
+    /**
+     * Constructs an ObjectBatchLogger with a not changeable format and a map of
+     * variables.
+     *
+     * @param format a not changeable format
+     * @param vars   a map of not changeable variables
+     */
+    ObjectBatchLogger(final String format, final Map<String, String> vars) {
         this.format = format;
         this.vars.putAll(vars);
     }

metafacture-monitoring/src/main/java/org/metafacture/monitoring/StreamBatchLogger.java

@@ -70,6 +70,13 @@ public StreamBatchLogger(final String format) {
         this.format = format;
     }
 
+    /**
+     * Constructs a StreamBatchLogger with a not changeable format and a map of
+     * variables.
+     *
+     * @param format a not changeable format
+     * @param vars   a map of variables
+     */
     public StreamBatchLogger(final String format, final Map<String, String> vars) {
         this.format = format;
         this.vars.putAll(vars);