Examples with ValueLoadContext io.jmix.core.ValueLoadContext used on opensource projects

Example 1 with ValueLoadContext

use of io.jmix.core.ValueLoadContext in project jmix by jmix-framework.

the class KeyValueCollectionLoaderImpl method load.

@Override
public void load() {
    if (container == null)
        throw new IllegalStateException("container is null");
    if (query == null && delegate == null)
        throw new IllegalStateException("both query and delegate are null");
    ValueLoadContext loadContext = createLoadContext();
    if (!sendPreLoadEvent(loadContext)) {
        return;
    }
    List<KeyValueEntity> list;
    if (delegate == null) {
        list = dataManager.loadValues(loadContext);
    } else {
        list = delegate.apply(loadContext);
    }
    if (dataContext != null) {
        List<KeyValueEntity> mergedList = new ArrayList<>(list.size());
        for (KeyValueEntity entity : list) {
            mergedList.add(dataContext.merge(entity));
        }
        container.setItems(mergedList);
    } else {
        container.setItems(list);
    }
    sendPostLoadEvent(list);
}

Example 2 with ValueLoadContext

use of io.jmix.core.ValueLoadContext in project jmix by jmix-framework.

the class OrderBasedEntityIdsLoader method loadNextIds.

@Override
public ResultHolder loadNextIds(EnqueueingSession session, int batchSize) {
    String entityName = session.getEntityName();
    MetaClass entityClass = metadata.getClass(entityName);
    String orderingPropertyName = session.getOrderingProperty();
    MetaProperty orderingProperty = entityClass.getProperty(orderingPropertyName);
    String lastProcessedRawOrderingValue = session.getLastProcessedValue();
    MetaProperty primaryKeyProperty = metadataTools.getPrimaryKeyProperty(entityClass);
    if (primaryKeyProperty == null) {
        throw new RuntimeException(String.format("Entity '%s' doesn't have primary key", entityName));
    }
    String primaryKeyPropertyName = primaryKeyProperty.getName();
    ResultHolder result;
    if (metadataTools.isEmbedded(orderingProperty)) {
        log.warn("Sorted loading by embedded property is not supported - perform in-memory loading of all ids");
        result = loadAllInMemory(entityClass);
    } else {
        Object lastProcessedValue = convertRawValue(orderingProperty, lastProcessedRawOrderingValue);
        ValueLoadContext valueLoadContext = createValueLoadContext(entityClass, primaryKeyPropertyName, orderingPropertyName, lastProcessedValue, batchSize);
        List<KeyValueEntity> loadedValues = loadValues(valueLoadContext);
        List<Object> ids = loadedValues.stream().map(v -> v.getValue("objectId")).collect(Collectors.toList());
        Object lastLoadedOrderingValue = resolveLastLoadedOrderingValue(loadedValues, primaryKeyPropertyName, orderingPropertyName);
        result = new ResultHolder(ids, lastLoadedOrderingValue);
    }
    return result;
}

Example 3 with ValueLoadContext

use of io.jmix.core.ValueLoadContext in project jmix by jmix-framework.

the class DataStoreCrudValuesListener method beforeValueLoad.

@Override
public void beforeValueLoad(DataStoreBeforeValueLoadEvent event) {
    ValueLoadContext context = event.getLoadContext();
    LoadValuesAccessContext queryContext = new LoadValuesAccessContext(context.getQuery().getQueryString(), queryTransformerFactory, metadata);
    accessManager.applyConstraints(queryContext, context.getAccessConstraints());
    for (Integer index : queryContext.getDeniedSelectedIndexes()) {
        event.addDeniedProperty(index);
    }
}

Example 4 with ValueLoadContext

use of io.jmix.core.ValueLoadContext in project jmix by jmix-framework.

the class KeyValueCollectionLoaderImpl method createLoadContext.

@Override
public ValueLoadContext createLoadContext() {
    ValueLoadContext loadContext = ValueLoadContext.create();
    loadContext.setStoreName(storeName);
    loadContext.setIdName(container.getIdName());
    for (MetaProperty property : container.getEntityMetaClass().getProperties()) {
        loadContext.addProperty(property.getName());
    }
    ValueLoadContext.Query query = loadContext.setQueryString(this.query);
    query.setCondition(condition);
    query.setSort(sort);
    query.setParameters(parameters);
    if (firstResult > 0)
        query.setFirstResult(firstResult);
    if (maxResults < Integer.MAX_VALUE)
        query.setMaxResults(maxResults);
    loadContext.setHints(hints);
    return loadContext;
}

Example 5 with ValueLoadContext

use of io.jmix.core.ValueLoadContext in project jmix by jmix-framework.

the class KeyValueInstanceLoaderImpl method load.

@Override
public void load() {
    if (container == null)
        throw new IllegalStateException("container is null");
    if (query == null && delegate == null)
        throw new IllegalStateException("both query and delegate are null");
    ValueLoadContext loadContext = createLoadContext();
    if (!sendPreLoadEvent(loadContext)) {
        return;
    }
    KeyValueEntity result = null;
    if (delegate == null) {
        List<KeyValueEntity> list = dataManager.loadValues(loadContext);
        if (!list.isEmpty()) {
            result = list.get(0);
        }
    } else {
        result = delegate.apply(loadContext);
    }
    container.setItem(result);
    sendPostLoadEvent(result);
}