Package com.google.cloud.datastore

package com.google.cloud.datastore
A client for Cloud Datastore – A highly-scalable NoSQL database for web and mobile applications.

Here's a simple usage example for using google-cloud from App/Compute Engine. This example shows how to create a Datastore entity. For the complete source code see CreateEntity.java. 


 Datastore datastore = DatastoreOptions.getDefaultInstance().getService();
 KeyFactory keyFactory = datastore.newKeyFactory().setKind("keyKind");
 Key key = keyFactory.newKey("keyName");
 Entity entity = Entity.newBuilder(key)
     .set("name", "John Doe")
     .set("age", 30)
     .set("access_time", Timestamp.now())
     .build();
 datastore.put(entity);

This second example shows how to get and update a Datastore entity if it exists. For the complete source code see UpdateEntity.java. 


 Datastore datastore = DatastoreOptions.getDefaultInstance().getService();
 KeyFactory keyFactory = datastore.newKeyFactory().setKind("keyKind");
 Key key = keyFactory.newKey("keyName");
 Entity entity = datastore.get(key);
 if (entity != null) {
   System.out.println("Updating access_time for " + entity.getString("name"));
   entity = Entity.newBuilder(entity)
       .set("access_time", Timestamp.now())
       .build();
   datastore.update(entity);
 }

When using google-cloud from outside of App/Compute Engine, you have to specify a project ID and provide credentials.

See Also: