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POResolving subdocument types with Spring Data and MongoDB
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  1. POResolving subdocument types with Spring Data and MongoDB
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    copied!<p>I'm encountering an error with a Spring Data repository as it attempts to resolve a property expression:</p> <pre><code>public interface ContractRepository extends MongoRepository&lt;Contract,String&gt; { public List&lt;Contract&gt; findByCodeBindings(String binding); } </code></pre> <p>Here's the relevant parts of <code>Contract</code>:</p> <pre><code>@Document(collection="CONTRACTS") public class PersistentContract extends BaseContract { @PersistenceConstructor public PersistentContract(String name, Version version, Code code) { super(name, version, code); } } </code></pre> <p><code>Code</code> is an interface implemented by <code>CodeImpl</code>. It contains a property <code>bindings</code>, which has a getter and setter in <code>Code</code>. So the query's property expression is designed to find those contracts with a nested Code document containing a given binding. So far, so good.</p> <p>However, the problem is an <code>IllegalArgumentException</code> is getting thrown:</p> <pre><code>java.lang.IllegalArgumentException: No property bindings found on my.company.Code! org.springframework.data.mapping.context.AbstractMappingContext.getPersistentPropertyPath(AbstractMappingContext.java:225) </code></pre> <p>Debugging that section of code shows that Spring Data is picking apart the expression and determines there's a property of type <code>Code</code>. However, because <code>Code</code> is an interface, it has no properties listed.</p> <p>Is there a means to hint to Spring Data that either <code>Code</code> has this property or that <code>CodeImpl</code> is the actual type of the <code>code</code> property? I'm surprised that the library doesn't attempt to parse the getters or setters of the interface.</p> <p>This is using spring-data-commons 1.5.1.RELEASE and spring-data-mongodb 1.2.1.RELEASE. </p> <p>Appreciate the help. </p>
 

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