io.spine.web.firebase.query

Class FirebaseQueryBridge

java.lang.Object

io.spine.web.firebase.query.FirebaseQueryBridge

All Implemented Interfaces:

io.spine.web.query.QueryBridge<io.spine.web.firebase.query.FirebaseQueryResponse>

public final class FirebaseQueryBridge
extends java.lang.Object
implements io.spine.web.query.QueryBridge<io.spine.web.firebase.query.FirebaseQueryResponse>

An implementation of QueryBridge based on the Firebase Realtime Database.

This bridge stores the QueryResponse data to a location in a given Firebase database and retrieves the database path to that response as the result.

More formally, for each encountered Query, the bridge performs a call to the QueryService and stores the resulting entity states into the given database. The data is stored as a list of strings. Each entry is a JSON representation of an entity state. The path produced by the bridge as a result is the path to the database node containing all those records. The absolute position of such a node is not specified, thus the result path is the only way to read the data from the database.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FirebaseQueryBridge.Builder A builder for the FirebaseQueryBridge instances.

Method Summary

Modifier and Type	Method and Description
static FirebaseQueryBridge.Builder	newBuilder() Creates a new instance of Builder for FirebaseQueryBridge instances.
io.spine.web.firebase.query.FirebaseQueryResponse	send(io.spine.client.Query query) Sends the given Query to the QueryService and stores the query response into the database.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

send

public io.spine.web.firebase.query.FirebaseQueryResponse send(io.spine.client.Query query)

Sends the given Query to the QueryService and stores the query response into the database.

Returns the path in the database under which the query response is stored.

Specified by:

send in interface io.spine.web.query.QueryBridge<io.spine.web.firebase.query.FirebaseQueryResponse>

Parameters:

query - the query to send

Returns:

a path in the database

newBuilder

public static FirebaseQueryBridge.Builder newBuilder()

Creates a new instance of Builder for FirebaseQueryBridge instances.

Returns:

new instance of Builder