For the complete tutorial directory, see :《CustomData service providers-Introduction"
Whenever I write a plug-in and connect it to the framework system, I always think: How does the framework system call my plug-in?
I am used to this mode of thinking, which simplifies my understanding of how it works.
In factDSPIn the development process, I also use this method to understandDataservice.
I will usePseudoCodeTo describe theseDSPHow the interf
We all know android has content provider, and we can access these data with content resolver,
1) Add permission,
2) getcontentresolver
Contentresolver Cr = getcontentresolver (); cursor cur = Cr. Query (contactscontract. Contacts. content_uri,
3) enumerate and query
For other data, for example, SMS, etc, it's similar, the only different is the URI, have fun!Reference:1) http://www.higherpass.com/Android/Tutorials/Working-With-Android-Contacts/2) http://developer.android.com/guide
Data configuration typically requires two providers. The data-Configuration service of the service provider OLE DB provides data-configuration functionality, while the data provider, such as the OLE DB provider of SQL Server, provides data rows for the filled-in-form Recordset.
The name of the service provider can be specified as the value of the Connection object Provider property, or the connection string keyword "provider=".
The name of the data pr
interfaces.
As we all know, all of the database management systems we use today--dbms can actually exchange visits through ODBC, because ODBC provides a variety of data sources to drive.
However, the unified interface of ADO accessing the data source is an OLE DB interface, so that although more and more database vendors are beginning to provide OLE DB interfaces, such as SQL Server, Oracle, and Microsoft Access (Microsoft Jet Database engine), and so on, but there are still some data sources t
drivers for OLE DB interfaces.
As we all know, all of the database management systems we use today--dbms can actually exchange visits through ODBC, because ODBC provides a variety of data sources to drive. However, the unified interface of ADO accessing the data source is an OLE DB interface, so that although more and more database vendors are beginning to provide OLE DB interfaces, such as SQL Server, Oracle, and Microsoft Access (Microsoft Jet Database engine), and so on, but there are still
optimal block storage node for the storage instance.
Cinder-backup: Daemon. The service provides any kind of backup volume to a backup storage provider. Like the ' cinder-volume ' service, it interacts with a variety of storage providers in the driver architecture.
Cinder database configuration and registration servicesHttp://docs.openstack.org/mitaka/zh_CN/install-guide-rdo/cinder-controller-install.htmlCreate a database and authorize:Maria
Linux Advanced Skills: openstack Construction and Application under redhat1. Introduction to openstackOpenStack is a free software and open source code project jointly developed by NASA and Rackspace with Apache license authorization.OpenStack is a cloud platform management project. It is not a software. This project is composed of several major components to complete some specific work. OpenStack is an ope
DirectoryOpenstack-mitaka Overview of High AvailabilityOpenstack-mitaka High-availability environment initializationOpenstack-mitaka High-availability Mariadb-galera cluster deploymentOpenstack-mitaka High Availability of memcacheOpenstack-mitaka High Availability pacemaker+corosync+pcs High availability clusterOpenstack-mitaka Highly Available certification services (Keystone)Openstack-mitaka High Availability Computing Service (Nova)
Use
AWS Services
OpenStack Services
The Chinese interpretation of OpenStack words
Dashboard
AWS Console
Horizon
The horizon of the world;
Calculate compute
EC2
Nova
Star
Internet
Vpc
Neutron
Neutron
Object storage
S3
Swift
Swift; agile.
Block storage
Ebs
Note:Reference official:http://docs.openstack.org/mitaka/install-guide-rdo/environment-packages.htmlOpenStack is an open source cloud computing platform that supports all types of cloud environments. The purpose of the project is to achieve simple, large scale scalability, and a rich feature set. Cloud computing expert projects from around the world contribute. OpenStack is an open source cloud computing platform that supports all types of cloud envir
The following content is from: http://blog.csdn.net/gqtcgq/article/details/49620279
Stevedore is an open source module for implementing dynamic load code. It is a public module that is used to load plug-ins in OpenStack. Can be installed independently of OpenStack: https://pypi.Python.org/pypi/stevedore/
Stevedore uses Setuptools's entry points to define and load Plug-ins. Entry point refers to objects d
Original link: http://www.cnblogs.com/CloudMan6/p/6397360.html
The instance of OpenStack is deployed through glance mirroring, so preparing mirroring is a must. This section describes how to make a Linux image, followed by a discussion of Windows mirroring. Download Clould Mirrors
The easiest way to do this is to use standard mirrors. Mainstream Linux distributions provide cloud mirrors that can be used directly in
The OpenStack kilo version was released on April 30, 2015, the 11th version of OpenStack, which has been in the past 5 years since the OpenStack project was launched. At this stage, OpenStack has been enhanced, and the OpenStack community has become the second largest open s
This is the 2nd chapter in the OpenStack implementation experience sharing series.OpenStack deploys instance through Glance mirroring, the previous section introduces the Linux image authoring method, Windows mirroring is very different from Linux, and today we take windows2008 as an example to discuss it in detail.The image production steps are as follows:1. Create and run the windows2008 KVM virtual machine2. Installing the Virtio Drive3. Installing
.
From the definition, we can see that openstack is a cloud platform operating system, and it can control a large number of computing, storage, and network resources through a data center, all these resources are managed in a unified manner through a control panel, which allows the Administrator to control resources provided through network interfaces.
Obviously, there are two types of users for openstack
# Systemctl start rabbitmq-server.service
The following error occurs when you start the service:
# Rabbitmqctl change_password guest123456
If an error is reported during execution
Identity serviceInstall and configure
# Mysql
> Create database keystone;
> Grant all privileges on keystone. * to 'keystone '@ 'localhost' identified by 'test01 ';
> Grant all privileges on keystone. * to 'keystone '@' % 'identified by 'test01 ';
# Openssl rand-hex 10
02456f17dc198d827a90 # different values
#
server and VM), Nova-compute creates an instance-specific chain and sets the rules under this chain to ensure the connection of the instance. In the case of floating IP, OpenStack can also use some rules to run normally. In addition, the OpenStack security group and its rules are embodied by the iptables rules.
First knowledge of OpenStack
pay attention to open standards. internal IT departments of enterprises were transformed into service providers, provide IT services to other departments. Based on this background, HP has set the tone for its cloud computing strategy: it designs and services for enterprises, complies with open standards, and develops for cloud interoperability.
In 2012, HP put forward a clear cloud strategy. The launch of the Helion cloud plan in May 2014 marks a new
number.) )After that, Dashboard's page found that it was deleted.Restart Nova-compute, create the virtual machine again, and the status is active.Problem thinking Direction: The operation of virtual machine (create, delete, etc.) must be related to Nova-compute.----------------------------------------------------------------------------------------------------March 25, 2014 update after following the above actions, and found that although the instance has been deleted, such as: If you want to m
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.