Fix #517

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -14,6 +14,11 @@ JSON library.
 === Releases ===
 ------------------------------------------------------------------------
 
+2.10.0.pr2
+
+#517: Add `JsonGenerator.writeStartObject(Object, int)` (needed by CBOR, maybe Avro)
+#549: Add configurability of "quote character" for JSON factory
+
 2.10.0.pr1 (19-Jul-2019)
 
 #433: Add Builder pattern for creating configured Stream factories
@@ -39,7 +44,6 @@ JSON library.
  (reported by Alex R)
 #548: ByteQuadsCanonicalizer: ArrayIndexOutOfBoundsException in addName
  (reported by Alex R)
-#549: Add configurability of "quote character" for JSON factory
 
 2.9.10 (not yet released)
 

src/main/java/com/fasterxml/jackson/core/JsonGenerator.java

@@ -725,6 +725,7 @@ public void setCurrentValue(Object v) {
      */
     public abstract void writeStartArray() throws IOException;
 
+    // TODO: deprecate in 2.11 (remove from 3.0)
     /**
      * Method for writing start marker of an Array value, similar
      * to {@link #writeStartArray()}, but also specifying how many
@@ -743,7 +744,23 @@ public void setCurrentValue(Object v) {
     public void writeStartArray(int size) throws IOException {
         writeStartArray();
     }
-    
+
+    /**
+     * @since 2.10
+     */
+    public void writeStartArray(Object forValue) throws IOException {
+        writeStartArray();
+        setCurrentValue(forValue);
+    }
+
+    /**
+     * @since 2.10
+     */
+    public void writeStartArray(Object forValue, int size) throws IOException {
+        writeStartArray(size);
+        setCurrentValue(forValue);
+    }
+
     /**
      * Method for writing closing marker of a JSON Array value
      * (character ']'; plus possible white space decoration

src/main/java/com/fasterxml/jackson/core/util/JsonGeneratorDelegate.java

@@ -196,6 +196,12 @@ public JsonGenerator setPrettyPrinter(PrettyPrinter pp) {
     @Override
     public void writeStartArray(int size) throws IOException { delegate.writeStartArray(size); }
 
+    @Override
+    public void writeStartArray(Object forValue) throws IOException { delegate.writeStartArray(forValue); }
+
+    @Override
+    public void writeStartArray(Object forValue, int size) throws IOException { delegate.writeStartArray(forValue, size); }
+
     @Override
     public void writeEndArray() throws IOException { delegate.writeEndArray(); }