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Android Background Operations

Background operation are very helpful, while you are needed to perform operation in the background and want to continue with other applications simultaneously. There are four ways to run background jobs: Sched ule Jobs are jobs while are about run at defined time. For example, if application cache need to be refreshed at defined time. It is used to run task asynchronously. JobS cheduler is a robust way to run background tasks. it is useful for small as well as large asynchronous tasks. In addition, there are several other facilities available to write jib scheduling tasks. It was first available in Android 5.0, (21), Android 7.0 (24) added ability to trigger job on ContentProvider change. You can register jobs by specifying their network and timing requirements. It also defer the execution as necessary to comply with Doze and App Standby restrictions. For Android 5.0, it is advised to use job scheduling only. AlarmManager is another way for scheduling, useful to post notifica...
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OpenText xPression Administration

xPressionHome is the environmental variable that point the xPression installation directory. xPression system is a client/server environment, where xPression client must logon to xPression server. xPression users may be authenticated in four ways: * Local Authentication: User is authenticated on local machine by adding user to local user list on the server. To enable local user authentication, dscsecurity.properties  file is configured for properties  IMPL_CLASS = com.dsc.uniarch.security.user.NTUser [for windows user] / com.dsc.uniarch.security.user.LinuxUser [for linux user]  and NT_AUTH = <server-name> Note: LDAP Properties must be commented * LDAP Authentication: At the time of xPression installation wizard, installer need to place LDAP authentication credentials. These settings are kept in ldapcfg.properties file, the path for ldapcfg.properties is given in dscsecurity.properties files. * SiteMinder Authenticaion: It is the third party ap...
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What is Nucleus in ATG? Nucleus is is ATG Commerce Component Model that helps to assemble application components using configuration file.  A configuration file specifies the name of components and required parameters by components Nucleus doesn't provide any application-specific functionality Application functionality is provided by JavaBean Components Nucleus helps to create components and helps to find components each other To do this, nucleus organizes application components into a hierarchy, and assigns a name to each component, based on its position in the hierarchy For example, a component named  /services/logs/FileLogger  represents a component called  FileLogger , contained by the container component called  logs , which is itself contained bcalled  services . The  services  component is contained by the root component of the hierarchy, which is Nucleus. Components in the hierarchy can refer to each other by name ...
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Java Facades

What is Facades? A facade provides a simplified interface to a larger body of code, such as a class library. Using faces, we can make More readable library Wrapped a poorly designed collection of API in a single well - designed API Reduces dependency of outside code on inner working library Facade example on Java /* Complex parts */ class CPU { public void freeze () { ... } public void jump ( long position ) { ... } public void execute () { ... } } class HardDrive { public byte [] read ( long lba , int size ) { ... } } class Memory { public void load ( long position , byte [] data ) { ... } } /* Facade */ class ComputerFacade { private CPU processor ; private Memory ram ; private HardDrive hd ; public ComputerFacade () { this . processor = new CPU (); this . ram = new Memory (); this . hd = new HardDrive (); } public ...
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