Examples of org.qi4j.api.common.MetaInfo

org.qi4j.api.common.MetaInfo
Used to declare and access meta-info.
This is effectively an internal class and should not be used directly.

MetaInfo can be set on composites during the assembly phase, a.k.a the bootstrap process. MetaInfo is any additional data that one wishes to associate at the 'class level' instead of instance level of a composite declaration.

To set the MetaInfo on a Composite, call the {@code setMetaInfo()} methods on the various composite declarationtypes, such as;
public void assemble( ModuleAssembly module ) throws AssemblyException { Map properties = ...; module.services( MyService.class ).setMetaInfo( properties ); }
which can later be retrieved by calling the {@code metaInfo()} method on the composite itself. For the exampleabove that would be;
@Mixins(MyServiceMixin.class) public interface MyService extends ServiceComposite { } public abstract class MyServiceMixin implements MyService { private Properties props; public MyServiceMixin() { props = metaInfo( Map.class ); } }

        ValueConstraintsInstance namedValueConstraintsInstance = null;
        if( valueConstraintsModel.isConstrained() )
        {
            namedValueConstraintsInstance = valueConstraintsModel.newInstance();
        }
        MetaInfo metaInfo = namedAssociationDeclarations.metaInfoFor( accessor );
        NamedAssociationModel associationModel = new NamedAssociationModel( accessor, valueConstraintsInstance, namedValueConstraintsInstance, metaInfo );
        return associationModel;
    }

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                    Iterable valueComposite = (Iterable) Iterables.iterable( ValueComposite.class );
                    ValueStateModel valueStateModel = new ValueStateModel( new PropertiesModel(),
                                                                           new AssociationsModel(),
                                                                           new ManyAssociationsModel(),
                                                                           new NamedAssociationsModel() );
                    model = new ValueModel( valueComposite, Visibility.application, new MetaInfo(),
                                            mixinsModel, valueStateModel, new CompositeMethodsModel( mixinsModel ) );
                }
                else
                {
                    throw new InvalidApplicationException( "[" + module.name() + "] Could not find ValueComposite of type " + type );

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            ImportedServiceModel serviceModel = new ImportedServiceModel( serviceType,
                                                                          visibility,
                                                                          serviceProvider,
                                                                          id,
                                                                          importOnStartup,
                                                                          new MetaInfo( metaInfo ).withAnnotations( serviceType ),
                                                                          new ActivatorsModel( activators ),
                                                                          moduleAssembly.name() );
            serviceModels.add( serviceModel );
        }
        catch( Exception e )

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    public MetaInfo metaInfoFor( AccessibleObject accessor )
    {
        for( Map.Entry<Class<?>, InfoHolder<?>> entry : mixinPropertyDeclarations.entrySet() )
        {
            InfoHolder<?> holder = entry.getValue();
            MetaInfo metaInfo = holder.metaInfoFor( accessor );
            if( metaInfo != null )
            {
                Class<?> mixinType = entry.getKey();
                return metaInfo.withAnnotations( mixinType )
                    .withAnnotations( accessor )
                    .withAnnotations( accessor instanceof Method ? ( (Method) accessor ).getReturnType() : ( (Field) accessor )
                        .getType() );
            }
        }
        // TODO is this code reached at all??
        Class<?> declaringType = ( (Member) accessor ).getDeclaringClass();
        return new MetaInfo().withAnnotations( declaringType )
            .withAnnotations( accessor )
            .withAnnotations( accessor instanceof Method ? ( (Method) accessor ).getReturnType() : ( (Field) accessor ).getType() );
    }

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        @Override
        public MixinDeclaration<T> setMetaInfo( Object info )
        {
            if( metaInfo == null )
            {
                metaInfo = new MetaInfo();
            }
            metaInfo.set( info );
            return this;
        }

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            }
            if( !found )
            {
                @SuppressWarnings( "raw" )
                Class<? extends ServiceImporter> serviceFactoryType = importedServiceModel.serviceImporter();
                ObjectModel objectModel = new ObjectModel( serviceFactoryType, Visibility.module, new MetaInfo() );
                objectModels.add( objectModel );
            }
        }


        return moduleModel;

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    @Override
    public ApplicationInstance newInstance( Qi4j runtime, Object... importedServiceInstances )
        throws InvalidApplicationException
    {
        MetaInfo instanceMetaInfo = new MetaInfo( metaInfo );
        for( Object importedServiceInstance : importedServiceInstances )
        {
            instanceMetaInfo.set( importedServiceInstance );
        }


        ApplicationInstance applicationInstance = new ApplicationInstance( this, (Qi4jRuntime) runtime, instanceMetaInfo );


        // Create layer instances

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Related Classes of org.qi4j.api.common.MetaInfo

org.qi4j.bootstrap.MetaInfoDeclaration

org.qi4j.bootstrap.MetaInfoDeclaration$InfoHolder

org.qi4j.runtime.bootstrap.CompositeAssemblyImpl

org.qi4j.runtime.bootstrap.EntityAssemblyImpl

org.qi4j.runtime.bootstrap.ImportedServiceAssemblyImpl

org.qi4j.runtime.bootstrap.ModuleAssemblyImpl

org.qi4j.runtime.bootstrap.ServiceAssemblyImpl

org.qi4j.runtime.bootstrap.TransientAssemblyImpl

org.qi4j.runtime.bootstrap.ValueAssemblyImpl

org.qi4j.runtime.structure.ApplicationModel

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