Author: chrish
Date: Tue Nov 17 15:00:11 2015
New Revision: 1714804
URL: http://svn.apache.org/viewvc?rev=1714804&view=rev
Log:
CMS commit to olingo by chrish
Modified:
olingo/site/trunk/content/doc/odata4/tutorials/deep_insert/tutorial_deep_insert.mdtext
Modified:
olingo/site/trunk/content/doc/odata4/tutorials/deep_insert/tutorial_deep_insert.mdtext
URL:
http://svn.apache.org/viewvc/olingo/site/trunk/content/doc/odata4/tutorials/deep_insert/tutorial_deep_insert.mdtext?rev=1714804&r1=1714803&r2=1714804&view=diff
==============================================================================
---
olingo/site/trunk/content/doc/odata4/tutorials/deep_insert/tutorial_deep_insert.mdtext
(original)
+++
olingo/site/trunk/content/doc/odata4/tutorials/deep_insert/tutorial_deep_insert.mdtext
Tue Nov 17 15:00:11 2015
@@ -83,7 +83,7 @@ Afterwards do a Deploy and run: it shoul
# 2. Implementation
-Before we start with the implementation, please have a look at the class
`myservice.mynamespace.data.Storage`. In difference to the [navigation
tutorial](http://olingo.apache.org/doc/odata4/tutorials/navigation/tutorial_navigation.html)
the relations between two entities can not be hard coded because we would like
to create and change relations between entities dynamically. In the constructor
of the data storage the sample data is created. After that the method
`linkProductsAndCategories`is called. This methods sets a few links between the
just created entities.
+Before we start with the implementation, please have a look at the class
`myservice.mynamespace.data.Storage`. In difference to the [navigation
tutorial](http://olingo.apache.org/doc/odata4/tutorials/navigation/tutorial_navigation.html)
the relations between two entities can not be hard coded because we would like
to create and change relations between entities dynamically. In the constructor
of the data storage the creation of the sample data is called. After that the
method `linkProductsAndCategories`is called. This methods sets a few links
between the just created entities. **The linked entites are stored as
navigation link**
To express the relation between two entities, Olingo uses the class
[Link](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Link.html).
This class is used for related entites (directly connected via Java
references) and bindings (which are actually strings) to other entities. To get
the related entites for a particual navigation property, you can ask an entity
with the method [`getNavigationLink(String
name)`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Linked.html#getNavigationLink(java.lang.String))
for an navigation property link. The link will contain either an entity or a
collection of entities dependenting on the type of the navigation property. To
get the actual entities use the methods
[`getInlineEntity()`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Link.html#getInlineEntity())
or
[`getInlineEntitySet()`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Link.htm
l#getInlineEntitySet())
The same can be done for bindings via the method [`getNavigationBinding(String
name)`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Linked.html#getNavigationBinding(java.lang.String)).
The values of the Binding can be gotten by the methods
[`getBindingLink()`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Link.html#getBindingLink())
and
[`getBindingLinks()`](http://olingo.apache.org/javadoc/odata4/org/apache/olingo/commons/api/data/Link.html#getBindingLinks()).
