[groovy-user] How to iterate over nested maps

[Matthias F. Brandstetter]

In a statically compiled piece of code I have a map object that contains other maps as values. Now I want to iterate over all inner map values like this:

       compStores.each { c, m ->
         println("$c -> $m")
         m.each { e, l ->
            println("$e -> $l")
         }
      }

But that doesn't work, I get the following exception:

No signature of method: ecs.EntityManager$_getAllEntityComponents_closure2_closure3.doCall() is applicable for argument types: (java.util.LinkedHashMap$Entry) values: [7b68d62d-b2fb-4d35-b74d-3065b354dde3=[test_ecs.EntityManagerTest$MockComponent1:a331423a-3325-4db2-ab98-10e272f222ea]]
Possible solutions: doCall(java.lang.Object, java.lang.Object), findAll(), findAll(), isCase(java.lang.Object), isCase(java.lang.Object)
groovy.lang.MissingMethodException: No signature of method: ecs.EntityManager$_getAllEntityComponents_closure2_closure3.doCall() is applicable for argument types: (java.util.LinkedHashMap$Entry) values: [7b68d62d-b2fb-4d35-b74d-3065b354dde3=[test_ecs.EntityManagerTest$MockComponent1:a331423a-3325-4db2-ab98-10e272f222ea]]
Possible solutions: doCall(java.lang.Object, java.lang.Object), findAll(), findAll(), isCase(java.lang.Object), isCase(java.lang.Object)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:270)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
    at groovy.lang.Closure.call(Closure.java:423)
    at groovy.lang.Closure.call(Closure.java:439)

Any ideas?

--

Matthias F. Brandstetter
hai...@gmail.com

[Matthias F. Brandstetter]

Ok sorry, I guess that was my mistake.

I fixed this by adding types to the Map object definition.

Cheers!