com.hazelcast.spi.tenantcontrol

Interface TenantControlFactory

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@Beta
 @FunctionalInterface
public interface TenantControlFactory

A TenantControlFactory supplies TenantControl objects when Hazelcast service attaches the tenant control to a distributed object. An implementation of TenantControlFactory is instantiated via ServiceLoader, so in order to be picked up:

• Its class name must be stored in a service definition file in META-INF/services/com.hazelcast.spi.tenantcontrol.TenantControlFactory
• It must have a public no-args constructor

Field Summary

Fields

Modifier and Type	Field and Description
static TenantControlFactory	NOOP_TENANT_CONTROL_FACTORY Default tenant control factory.

Method Summary

Modifier and Type	Method and Description
TenantControl	saveCurrentTenant(DestroyEventContext event) To be called from the application's thread to connect a Hazelcast object with a particular tenant, e.g.

Field Detail

NOOP_TENANT_CONTROL_FACTORY

static final TenantControlFactory NOOP_TENANT_CONTROL_FACTORY

Default tenant control factory. Always produces TenantControl.NOOP_TENANT_CONTROL

Method Detail

saveCurrentTenant

TenantControl saveCurrentTenant(DestroyEventContext event)

To be called from the application's thread to connect a Hazelcast object with a particular tenant, e.g. JCache-based cache with a particular application Implementor will save the current thread context and return it Further operations from other threads will use the returned context for this particular Hazelcast object to re-establish the invocation context

Parameters:

event - hook to destroy any Hazelcast object when the tenant is destroyed, This is used, for example, to delete all associated caches from the application when it gets undeployed, so there are no ClassCastExceptions afterwards

Returns:

new TenantControl instance with the saved state of the current tenant