io.spine.server.tenant

Class TenantAwareFunction<F,T>

java.lang.Object

io.spine.server.tenant.TenantAwareFunction<F,T>

Type Parameters:

F - the type of the input

T - the type of the output

All Implemented Interfaces:

java.util.function.Function<F,T>

Direct Known Subclasses:

TenantAwareFunction0

@SPI
public abstract class TenantAwareFunction<F,T>
extends java.lang.Object
implements java.util.function.Function<F,T>

A function which is calculated in a tenant context.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TenantAwareFunction()
protected	TenantAwareFunction(io.spine.core.TenantId tenantId)

Method Summary

Modifier and Type	Method and Description
T	execute(F input) Returns the result of applying the function to the passed input.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, apply, compose, identity

Constructor Detail

TenantAwareFunction

protected TenantAwareFunction()
                       throws java.lang.IllegalStateException

Throws:

java.lang.IllegalStateException

TenantAwareFunction

protected TenantAwareFunction(io.spine.core.TenantId tenantId)

Method Detail

execute

public T execute(F input)

Returns the result of applying the function to the passed input.

The execution goes through the following steps:

1. The current tenant ID is obtained and remembered.
2. The tenant ID passed to the constructor is set as current.
3. The Function.apply(Object) method is called.
4. The previous tenant ID is set as current.