more metaconfig API

common/src/main/java/com/dfsek/terra/api/config/meta/MetaContext.java

@@ -4,5 +4,15 @@ package com.dfsek.terra.api.config.meta;
  * Context from which to pull {@link MetaValue}s
  */
 public interface MetaContext {
-    <T> T load(Object metaCandidate);
+    <T> T load(Object in, Class<T> clazz);
+
+    /**
+     * Load method for when class is unknown.
+     *
+     * @param in Object to load/load metavalue for
+     * @return Loaded object
+     */
+    default Object load(Object in) {
+        return load(in, in.getClass());
+    }
 }

common/src/main/java/com/dfsek/terra/api/config/meta/MetaValue.java

@@ -1,5 +1,6 @@
 package com.dfsek.terra.api.config.meta;
 
-public interface MetaValue<T> {
+import java.util.function.Supplier;
-    T load(MetaContext context);
+
+public interface MetaValue<T> extends Supplier<T> {
 }

common/src/main/java/com/dfsek/terra/api/config/meta/specific/number/MetaNumber.java

@@ -0,0 +1,6 @@
+package com.dfsek.terra.api.config.meta.specific.number;
+
+import com.dfsek.terra.api.config.meta.MetaValue;
+
+public interface MetaNumber<T extends Number> extends MetaValue<T> {
+}

common/src/main/java/com/dfsek/terra/config/loaders/meta/GenericMetaValueLoader.java

@@ -0,0 +1,24 @@
+package com.dfsek.terra.config.loaders.meta;
+
+import com.dfsek.tectonic.exception.LoadException;
+import com.dfsek.tectonic.loading.ConfigLoader;
+import com.dfsek.terra.api.config.meta.MetaContext;
+import com.dfsek.terra.api.config.meta.MetaValue;
+
+import java.lang.reflect.Type;
+
+public class GenericMetaValueLoader extends MetaValueLoader<MetaValue<Object>, Object> {
+    protected GenericMetaValueLoader(MetaContext context) {
+        super(context);
+    }
+
+    @Override
+    public MetaValue<Object> load(Type t, Object c, ConfigLoader loader) throws LoadException {
+        return null;
+    }
+
+    @Override
+    public Object get() {
+        return null;
+    }
+}

common/src/main/java/com/dfsek/terra/config/loaders/meta/MetaValueLoader.java

@@ -7,7 +7,7 @@ import com.dfsek.terra.api.config.meta.MetaValue;
 import java.util.function.Supplier;
 
 public abstract class MetaValueLoader<M extends MetaValue<T>, T> implements TypeLoader<M>, Supplier<T> {
-    private final MetaContext context;
+    protected final MetaContext context;
 
     protected MetaValueLoader(MetaContext context) {
         this.context = context;