Examples with CollectionLoader io.jmix.ui.model.CollectionLoader used on opensource projects

Example 1 with CollectionLoader

use of io.jmix.ui.model.CollectionLoader in project jmix by jmix-framework.

the class Param method createEntityLookup.

protected Component createEntityLookup(FilterDataContext filterDataContext, ValueProperty valueProperty) {
    MetaClass metaClass = metadata.getSession().getClassNN(javaClass);
    LookupType type = null;
    if (property != null && property.getRange().isClass()) {
        type = (LookupType) metadata.getTools().getMetaAnnotationAttributes(property.getAnnotations(), Lookup.class).get("type");
    }
    PersistenceManagerClient persistenceManager = (PersistenceManagerClient) applicationContext.getBean(PersistenceManagerClient.NAME);
    boolean useLookupScreen = type != null ? type == LookupType.SCREEN : persistenceManager.useLookupScreen(metaClass.getName());
    if (useLookupScreen) {
        if (inExpr) {
            ListEditor listEditor = uiComponents.create(ListEditor.class);
            listEditor.setItemType(ListEditor.ItemType.ENTITY);
            listEditor.setEntityName(metaClass.getName());
            initListEditor(listEditor, valueProperty);
            return listEditor;
        } else {
            PickerField<Entity> picker = uiComponents.create(PickerField.NAME);
            picker.setMetaClass(metaClass);
            picker.setWidth(theme.get("cuba.gui.filter.Param.textComponent.width"));
            picker.addAction(actions.create(LookupAction.ID));
            picker.addAction(actions.create(EntityClearAction.ID));
            picker.addValueChangeListener(e -> _setValue(e.getValue(), valueProperty));
            picker.setValue((Entity) _getValue(valueProperty));
            return picker;
        }
    } else {
        if (inExpr) {
            CollectionLoader<Entity> loader = createEntityOptionsLoader(metaClass);
            CollectionContainer<Entity> container = dataComponents.createCollectionContainer(metaClass.getJavaClass());
            loader.setContainer(container);
            ListEditor listEditor = uiComponents.create(ListEditor.class);
            listEditor.setItemType(ListEditor.ItemType.ENTITY);
            listEditor.setEntityName(metaClass.getName());
            // noinspection unchecked
            listEditor.setOptions(new ContainerOptions<>(container));
            // noinspection unchecked
            initListEditor(listEditor, valueProperty);
            // noinspection unchecked
            Consumer<CollectionContainer.CollectionChangeEvent<?>> listener = e -> listEditor.setValue(null);
            if (filterDataContext != null) {
                filterDataContext.registerCollectionLoader(this, loader);
                filterDataContext.registerContainerCollectionChangeListener(this, container, listener);
            }
            return listEditor;
        } else {
            CollectionLoader<Entity> loader = createEntityOptionsLoader(metaClass);
            CollectionContainer<Entity> container = dataComponents.createCollectionContainer(metaClass.getJavaClass());
            loader.setContainer(container);
            LookupPickerField<Entity> lookup = uiComponents.create(LookupPickerField.NAME);
            lookup.setWidth(theme.get("cuba.gui.filter.Param.textComponent.width"));
            lookup.addAction(actions.create(EntityClearAction.ID));
            lookup.setOptions(new ContainerOptions<>(container));
            Consumer<CollectionContainer.CollectionChangeEvent<?>> listener = e -> lookup.setValue(null);
            lookup.addValueChangeListener(e -> _setValue(e.getValue(), valueProperty));
            lookup.setValue((Entity) _getValue(valueProperty));
            if (filterDataContext != null) {
                filterDataContext.registerCollectionLoader(this, loader);
                filterDataContext.registerContainerCollectionChangeListener(this, container, listener);
            }
            return lookup;
        }
    }
}

Example 2 with CollectionLoader

use of io.jmix.ui.model.CollectionLoader in project jmix by jmix-framework.

the class DynAttrAwareEntityTransformer method transformForCollectionContainer.

@Override
public <E> E transformForCollectionContainer(E editedEntity, CollectionContainer<E> container) {
    boolean needDynamicAttributes = false;
    boolean dynamicAttributesAreLoaded = true;
    DynamicAttributesState state = EntitySystemAccess.getExtraState(editedEntity, DynamicAttributesState.class);
    if (state != null) {
        dynamicAttributesAreLoaded = state.getDynamicAttributes() != null;
    }
    if (container instanceof HasLoader) {
        DataLoader loader = ((HasLoader) container).getLoader();
        if (loader instanceof CollectionLoader) {
            Map<String, Serializable> hints = loader.getHints();
            needDynamicAttributes = hints != null && Boolean.TRUE.equals(hints.get(DynAttrQueryHints.LOAD_DYN_ATTR));
        }
    }
    FetchPlan fetchPlan = container.getFetchPlan();
    if (fetchPlan != null && !entityStates.isLoadedWithFetchPlan(editedEntity, fetchPlan)) {
        return dataManager.load(Id.of(editedEntity)).fetchPlan(fetchPlan).hint(DynAttrQueryHints.LOAD_DYN_ATTR, needDynamicAttributes).one();
    } else if (needDynamicAttributes && !dynamicAttributesAreLoaded) {
        dynAttrManager.loadValues(Collections.singletonList(editedEntity), fetchPlan, accessConstraintsRegistry.getConstraints());
        return editedEntity;
    } else {
        return editedEntity;
    }
}