DOCSP-30350 toc tree update and editing

Author: mballard-mdb

source/crud.txt

@@ -19,6 +19,7 @@ CRUD Operations
    Collations </crud/collations>
    Large File Storage with GridFS </crud/gridfs>
    Configure Custom CRUD Settings </crud/crud-settings>
+   Write Operation Error Handling </crud/operation-error-handling>
 
 - :ref:`Insert Documents <java-fundamentals-insert>`
 - :ref:`Query Documents <java-read-operations>`

source/operation-error-handling.txt renamed to source/crud/operation-error-handling.txt

@@ -42,17 +42,24 @@ returns an error of the `WriteError <{+core-api+}/WriteError.html>`__ type.
 
 The ``WriteError`` type contains the following methods: 
 
-    - `getCode <{+core-api+}/WriteError.html#getCode()>`__: returns the code associated with this error.
-    - `getMessage <{+core-api+}/WriteError.html#getMessage()>`__: returns the message associated with this error.
-    - `getDetails <{+core-api+}/WriteError.html#getDetails()>`__: returns a BSON Document with details associated with this
-      error, which may be empty.
-    - `getCategory <{+core-api+}/WriteError.html#getCategory()>`__: returns the category of the write error as an
-      `ErrorCategory <{+core-api+}/ErrorCategory.html>`__ object.
+    - ``getCode``: returns the code associated with this error
+    - ``getMessage``: returns the message associated with this error
+    - ``getDetails``: returns a BSON Document with details associated with this
+      error, which may be empty
+    - ``getCategory``: returns the category of the write error as an
+      `ErrorCategory <{+core-api+}/ErrorCategory.html>`__ object
 
 The `BulkWriteError <{+core-api+}/bulk/BulkWriteError.html>`__ type extends
-``WriteError`` and inherits the above methods. The `WriteConcernError
-<{+core-api+}/bulk/WriteConcernError.html>`__ is not related to the
-``WriteError`` type and details errors relating to the write concern.
+``WriteError`` and inherits the above methods. This type is used for bulk
+operations and includes an ``index`` field that identifies the item in the bulk
+operation that led to the error. 
+
+The `WriteConcernError <{+core-api+}/bulk/WriteConcernError.html>`__ is not
+related to the ``WriteError`` type and details errors relating to the write
+concern. In addition to the ``getCode``, ``getMessage``, and ``getDetails``
+methods, ``WriteConcernError`` has the ``getCodeName`` method, which returns the
+name associated with the error code. This type does not have the ``getCategory``
+method.
 
 Write Error
 ~~~~~~~~~~~