Dozer nulls return value of custom converter
So I was trying to use a custom converter with Dozer on a field, that needs to be converted from List <A> to List <B>. I used the 'new API' as described here and
hints to give Dozer the right mapping. So, in the end, the XML configuration looks like this:
<field map-id="ResolveObjectId">
<a>lista</a>
<b>listb</b>
<a-hint>org.bson.types.ObjectId</a-hint>
<b-hint>SomeDTO</b-hint>
</field>
<mapping map-id="ResolveObjectId" >
<class-a>org.bson.types.ObjectId</class-a>
<class-b>SomeDTO</class-b>
<field custom-converter-id="myCustomConverter">
<a>this</a>
<b>this</b>
</field>
</mapping>
The custom converter (myCustomConverter) is created by the Spring container since it has some dependencies on other beans. It is then passed to the DozerBeanMapper bean in the property "customConvertersWithId".
So all this seems to be working right, but when the custom converter gets called and returns a new instance of the SomeDTO object, Dozer actually doesn't use this object. Instead, Dozer creates an empty instance of the type 'SomeDTO' with all fields set to null instead of using the object from the converter.
When using the 'old' API with my converter implementing the CustomConverter interface and accepting whole lists as objects, it works out all fine.
So I assume this a problem of my configuration or a problem of Dozer??
I am using version 5.5.1 with JDK8 support for converting LocalDates: Dozer JDK8 support
Some other Stack overflow question deal with converting a List to List and suggested the solution I presented above. It can be found here
java mapping dozer
edited Nov 16 '18 at 9:32
D.Mendes
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
add a comment |
So I was trying to use a custom converter with Dozer on a field, that needs to be converted from List <A> to List <B>. I used the 'new API' as described here and
hints to give Dozer the right mapping. So, in the end, the XML configuration looks like this:
<field map-id="ResolveObjectId">
<a>lista</a>
<b>listb</b>
<a-hint>org.bson.types.ObjectId</a-hint>
<b-hint>SomeDTO</b-hint>
</field>
<mapping map-id="ResolveObjectId" >
<class-a>org.bson.types.ObjectId</class-a>
<class-b>SomeDTO</class-b>
<field custom-converter-id="myCustomConverter">
<a>this</a>
<b>this</b>
</field>
</mapping>
The custom converter (myCustomConverter) is created by the Spring container since it has some dependencies on other beans. It is then passed to the DozerBeanMapper bean in the property "customConvertersWithId".
So all this seems to be working right, but when the custom converter gets called and returns a new instance of the SomeDTO object, Dozer actually doesn't use this object. Instead, Dozer creates an empty instance of the type 'SomeDTO' with all fields set to null instead of using the object from the converter.
When using the 'old' API with my converter implementing the CustomConverter interface and accepting whole lists as objects, it works out all fine.
So I assume this a problem of my configuration or a problem of Dozer??
I am using version 5.5.1 with JDK8 support for converting LocalDates: Dozer JDK8 support
Some other Stack overflow question deal with converting a List to List and suggested the solution I presented above. It can be found here
java mapping dozer
edited Nov 16 '18 at 9:32
D.Mendes
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
add a comment |
So I was trying to use a custom converter with Dozer on a field, that needs to be converted from List <A> to List <B>. I used the 'new API' as described here and
hints to give Dozer the right mapping. So, in the end, the XML configuration looks like this:
<field map-id="ResolveObjectId">
<a>lista</a>
<b>listb</b>
<a-hint>org.bson.types.ObjectId</a-hint>
<b-hint>SomeDTO</b-hint>
</field>
<mapping map-id="ResolveObjectId" >
<class-a>org.bson.types.ObjectId</class-a>
<class-b>SomeDTO</class-b>
<field custom-converter-id="myCustomConverter">
<a>this</a>
<b>this</b>
</field>
</mapping>
The custom converter (myCustomConverter) is created by the Spring container since it has some dependencies on other beans. It is then passed to the DozerBeanMapper bean in the property "customConvertersWithId".
So all this seems to be working right, but when the custom converter gets called and returns a new instance of the SomeDTO object, Dozer actually doesn't use this object. Instead, Dozer creates an empty instance of the type 'SomeDTO' with all fields set to null instead of using the object from the converter.
When using the 'old' API with my converter implementing the CustomConverter interface and accepting whole lists as objects, it works out all fine.
So I assume this a problem of my configuration or a problem of Dozer??
I am using version 5.5.1 with JDK8 support for converting LocalDates: Dozer JDK8 support
Some other Stack overflow question deal with converting a List to List and suggested the solution I presented above. It can be found here
java mapping dozer
edited Nov 16 '18 at 9:32
D.Mendes
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
So I was trying to use a custom converter with Dozer on a field, that needs to be converted from List <A> to List <B>. I used the 'new API' as described here and
hints to give Dozer the right mapping. So, in the end, the XML configuration looks like this:
<field map-id="ResolveObjectId">
<a>lista</a>
<b>listb</b>
<a-hint>org.bson.types.ObjectId</a-hint>
<b-hint>SomeDTO</b-hint>
</field>
<mapping map-id="ResolveObjectId" >
<class-a>org.bson.types.ObjectId</class-a>
<class-b>SomeDTO</class-b>
<field custom-converter-id="myCustomConverter">
<a>this</a>
<b>this</b>
</field>
</mapping>
The custom converter (myCustomConverter) is created by the Spring container since it has some dependencies on other beans. It is then passed to the DozerBeanMapper bean in the property "customConvertersWithId".
So all this seems to be working right, but when the custom converter gets called and returns a new instance of the SomeDTO object, Dozer actually doesn't use this object. Instead, Dozer creates an empty instance of the type 'SomeDTO' with all fields set to null instead of using the object from the converter.
When using the 'old' API with my converter implementing the CustomConverter interface and accepting whole lists as objects, it works out all fine.
So I assume this a problem of my configuration or a problem of Dozer??
I am using version 5.5.1 with JDK8 support for converting LocalDates: Dozer JDK8 support
Some other Stack overflow question deal with converting a List to List and suggested the solution I presented above. It can be found here
java mapping dozer
java mapping dozer
edited Nov 16 '18 at 9:32
D.Mendes
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
edited Nov 16 '18 at 9:32
D.Mendes
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
edited Nov 16 '18 at 9:32
D.Mendes
11810
edited Nov 16 '18 at 9:32
D.Mendes
11810
edited Nov 16 '18 at 9:32
D.Mendes
11810
11810
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
asked Nov 16 '18 at 9:16
Moritz W.Moritz W.
826
826
add a comment |
add a comment |
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