Examples with QuerySnapshot com.google.cloud.firestore.QuerySnapshot used on opensource projects

Example 11 with QuerySnapshot

use of com.google.cloud.firestore.QuerySnapshot in project java-docs-samples by GoogleCloudPlatform.

the class QuickstartIT method deleteAllDocuments.

private void deleteAllDocuments() throws Exception {
    ApiFuture<QuerySnapshot> future = db.collection("users").get();
    QuerySnapshot querySnapshot = future.get();
    for (DocumentSnapshot doc : querySnapshot.getDocuments()) {
        // block on delete operation
        db.document("users/" + doc.getId()).delete().get();
    }
}

Example 12 with QuerySnapshot

use of com.google.cloud.firestore.QuerySnapshot in project java-docs-samples by GoogleCloudPlatform.

the class Quickstart method retrieveAllDocuments.

void retrieveAllDocuments() throws Exception {
    // [START fs_get_all]
    // asynchronously retrieve all users
    ApiFuture<QuerySnapshot> query = db.collection("users").get();
    // ...
    // query.get() blocks on response
    QuerySnapshot querySnapshot = query.get();
    List<QueryDocumentSnapshot> documents = querySnapshot.getDocuments();
    for (QueryDocumentSnapshot document : documents) {
        System.out.println("User: " + document.getId());
        System.out.println("First: " + document.getString("first"));
        if (document.contains("middle")) {
            System.out.println("Middle: " + document.getString("middle"));
        }
        System.out.println("Last: " + document.getString("last"));
        System.out.println("Born: " + document.getLong("born"));
    }
// [END fs_get_all]
}

Example 13 with QuerySnapshot

use of com.google.cloud.firestore.QuerySnapshot in project java-docs-samples by GoogleCloudPlatform.

the class QueryDataSnippets method createAQueryAlternate.

/**
 * Creates a sample query.
 *
 * @return query
 */
Query createAQueryAlternate() throws Exception {
    // [START fs_create_query_country]
    // Create a reference to the cities collection
    CollectionReference cities = db.collection("cities");
    // Create a query against the collection.
    Query query = cities.whereEqualTo("state", "CA");
    // retrieve  query results asynchronously using query.get()
    ApiFuture<QuerySnapshot> querySnapshot = query.get();
    for (DocumentSnapshot document : querySnapshot.get().getDocuments()) {
        System.out.println(document.getId());
    }
    // [END fs_create_query_country]
    return query;
}

Example 14 with QuerySnapshot

use of com.google.cloud.firestore.QuerySnapshot in project java-docs-samples by GoogleCloudPlatform.

the class RetrieveDataSnippets method getQueryResults.

/**
 * Return multiple documents from a collection based on a query.
 *
 * @return list of documents of capital cities.
 */
public List<QueryDocumentSnapshot> getQueryResults() throws Exception {
    // [START fs_get_multiple_docs]
    // asynchronously retrieve multiple documents
    ApiFuture<QuerySnapshot> future = db.collection("cities").whereEqualTo("capital", true).get();
    // future.get() blocks on response
    List<QueryDocumentSnapshot> documents = future.get().getDocuments();
    for (DocumentSnapshot document : documents) {
        System.out.println(document.getId() + " => " + document.toObject(City.class));
    }
    // [END fs_get_multiple_docs]
    return documents;
}

Example 15 with QuerySnapshot

use of com.google.cloud.firestore.QuerySnapshot in project java-docs-samples by GoogleCloudPlatform.

the class BaseIntegrationTest method deleteAllDocuments.

protected static void deleteAllDocuments(Firestore db) throws Exception {
    ApiFuture<QuerySnapshot> future = db.collection("cities").get();
    QuerySnapshot querySnapshot = future.get();
    for (DocumentSnapshot doc : querySnapshot.getDocuments()) {
        // block on delete operation
        db.collection("cities").document(doc.getId()).delete().get();
    }
}