Package com.gemstone.gemfire.distributed

Provides information about, access to, and common tools for GemFire distributed systems.

See: Description

Interface Summary

Interface	Description
ClientSocketFactory	Interface ClientSocketFactory is used to create non-default client sockets.
DistributedMember	This is the fundamental representation of a member in a GemFire distributed system.
Role	Members of the distributed system can fill one or more user defined roles.

Class Summary

Class	Description
AbstractLauncher<T extends Comparable<T>>	The AbstractLauncher class is a base class for implementing various launchers to construct and run different GemFire processes, like Cache Servers, Locators, Managers, HTTP servers and so on.
AbstractLauncher.ServiceState<T extends Comparable<T>>	The ServiceState is an immutable type representing the state of the specified Locator at any given moment in time.
DistributedLockService	A named instance of DistributedLockService defines a space for locking arbitrary names across the distributed system defined by a specified distribution manager.
DistributedSystem	A "connection" to a GemFire distributed system.
DurableClientAttributes	Class DurableClientAttributes represents durable member attributes.
Locator	Represents a distribution locator server that provides discovery information to members and clients of a GemFire distributed system.
LocatorLauncher	The LocatorLauncher class is a launcher for a GemFire Locator.
LocatorLauncher.Builder	Following the Builder design pattern, the LocatorLauncher Builder is used to configure and create a properly initialized instance of the LocatorLauncher class for running the Locator and performing other Locator operations.
LocatorLauncher.LocatorState	The LocatorState is an immutable type representing the state of the specified Locator at any given moment in time.
ServerLauncher	The ServerLauncher class is a launcher class with main method to start a GemFire Server (implying a GemFire Cache Server process).
ServerLauncher.Builder	The Builder class, modeled after the Builder creational design pattern, is used to construct a properly configured and initialized instance of the ServerLauncher to control and run GemFire servers (in particular, cache servers).
ServerLauncher.ServerState	The ServerState is an immutable type representing the state of the specified Locator at any given moment in time.

Enum Summary

Enum	Description
AbstractLauncher.Status	The Status enumerated type represents the various lifecycle states of a GemFire service (such as a Cache Server, a Locator or a Manager).
LocatorLauncher.Command	An enumerated type representing valid commands to the Locator launcher.
ServerLauncher.Command	An enumerated type representing valid commands to the Server launcher.

Exception Summary

Exception	Description
DistributedSystemDisconnectedException	Thrown when a GemFire distributed system has been terminated.
FutureCancelledException	Thrown when a Future has been cancelled.
GatewayCancelledException	Thrown when a GemFire oplog has been terminated.
LeaseExpiredException	A LeaseExpiredException is thrown when GemFire detects that a distributed lock obtained by the current thread with a limited lease (see @link DistributedLockService} has expired before it was explicitly released.
LockNotHeldException	A LockNotHeldException is thrown when attempting unlock a lock that is not held by the thread performing the unlock.
LockServiceDestroyedException	A LockServiceDestroyedException is thrown when attempting use a distributed lock service that has been destroyed.
OplogCancelledException	Thrown when a GemFire gateway has been terminated.
PoolCancelledException	Thrown when a GemFire pool has been cancelled.
TXManagerCancelledException	Thrown when a GemFire transaction manager has been terminated.

Package com.gemstone.gemfire.distributed Description

Provides information about, access to, and common tools for GemFire distributed systems. When a program wishes to access distributed dtaa data stored in GemFire, it first creates a DistributedSystem that will connect to the distributed system. GemFire provides two means of discovering the other members in a distributed group. The first uses IP multicast to broadcast a message to all members that listen on a given port and address. The second method of discovery uses special VMs called "locators" to keep track of the members of the distributed system. Each locator is identified by a host/port pair that is specified when connecting to the distributed system.