Example usage for com.mongodb.client.model Sorts orderBy

Introduction

In this page you can find the example usage for com.mongodb.client.model Sorts orderBy.

Prototype

private static Bson orderBy(final List<String> fieldNames, final BsonValue value) 

Source Link

Usage

From source file:org.jaqpot.core.db.entitymanager.MongoDBEntityManager.java

License:Open Source License

@Override
public <T extends JaqpotEntity> List<T> findSorted(Class<T> entityClass, Map<String, Object> properties,
        Integer start, Integer max, List<String> ascendingFields, List<String> descendingFields) {
    MongoDatabase db = mongoClient.getDatabase(database);
    MongoCollection<Document> collection = db.getCollection(collectionNames.get(entityClass));
    properties.entrySet().stream().filter(e -> {
        return e.getValue() instanceof List;
    }).forEach(e -> {//from  w  ww. j a va  2s . co m
        Map<String, Object> all = new HashMap<>();
        all.put("$all", e.getValue());
        properties.put(e.getKey(), all);
    });

    List<T> result = new ArrayList<>();
    collection.find(new Document(properties))
            .sort(Sorts.orderBy(Sorts.ascending(ascendingFields), Sorts.descending(descendingFields)))
            .skip(start != null ? start : 0).limit(max != null ? max : DEFAULT_PAGE_SIZE)
            .map(document -> serializer.parse(JSON.serialize(document), entityClass)).into(result);
    return result;
}

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From source file:org.jaqpot.core.db.entitymanager.MongoDBEntityManager.java

License:Open Source License

@Override
public <T extends JaqpotEntity> List<T> findSorted(Class<T> entityClass, Map<String, Object> properties,
        List<String> fields, Integer start, Integer max, List<String> ascendingFields,
        List<String> descendingFields) {
    MongoDatabase db = mongoClient.getDatabase(database);
    MongoCollection<Document> collection = db.getCollection(collectionNames.get(entityClass));
    properties.entrySet().stream().filter(e -> {
        return e.getValue() instanceof List;
    }).forEach(e -> {//from  w w w . java2  s  . c o  m
        Map<String, Object> all = new HashMap<>();
        all.put("$all", e.getValue());
        properties.put(e.getKey(), all);
    });

    Document filter = new Document();
    fields.stream().forEach(f -> filter.put(f, 1));
    List<T> result = new ArrayList<>();
    collection.find(new Document(properties)).projection(filter)
            .sort(Sorts.orderBy(Sorts.ascending(ascendingFields), Sorts.descending(descendingFields)))
            .skip(start != null ? start : 0).limit(max != null ? max : DEFAULT_PAGE_SIZE)
            .map(document -> serializer.parse(JSON.serialize(document), entityClass)).into(result);
    return result;
}

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