Add support for OGM's CompositeAttributeConverter. [DATAGRAPH-1393]

[spring-projects-issues]

Michael Simons opened DATAGRAPH-1393 and commented

A

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Affects: 6.0 RC1 (2020.0.0)

Referenced from: pull request #542

[spring-projects-issues]

Michael Herb commented

Do you guys have any example code on how to use this?  I found some unit test code, but the implementation was static.

I took a stab at it like the below, but I get an exception:

    Caused by: java.lang.ClassNotFoundException: org.springframework.data.neo4j.core.convert.Neo4jPersistentPropertyToMapConverter    Caused by: java.lang.ClassNotFoundException: org.springframework.data.neo4j.core.convert.Neo4jPersistentPropertyToMapConverter at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

 

public class RouteMetricConverter implements Neo4jPersistentPropertyToMapConverter<String, RouteMetric> {
    @Override
    public Map<String, Value> decompose(RouteMetric routeMetric, Neo4jConversionService neo4jConversionService) {
        Map<String, Value> map = new HashMap<>();
        if (routeMetric == null)
            return map;
        map.put("Metric_Fiberloss", Values.value(routeMetric.getFiberLoss()));
        //...more code
        return map;
    }

    @Override
    public RouteMetric compose(Map<String, Value> map, Neo4jConversionService neo4jConversionService) {
        RouteMetric rm = new RouteMetric();
        rm.setFiberLoss(map.get("Metric_Fiberloss").asDouble());
        //...more code
        return rm;
    }
}

[spring-projects-issues]

Michael Simons commented

I guess you configured it correctly on the property. The exception feels like you’re coded it against RC2 but running against RC1. Gerrit Meier mind having a look here as well?

[spring-projects-issues]

Michael Herb commented

Thank you Michael, it is indeed a dependency issue on my side