Package com.broadleafcommerce.common.extension.cache.key

Interface ContextKeyGen

All Superinterfaces:

org.springframework.cache.interceptor.KeyGenerator

public interface ContextKeyGen
extends org.springframework.cache.interceptor.KeyGenerator

KeyGenerator to use with Spring Cache for method response caching that needs to take into account DataRouteContext as part of the cache key determination. Cache situations that employ repository data from common libraries will be the primary consumer of this pattern when being run with data routing enabled as part of a uber service configuration. For example, caching translation fetch responses would require use of this key generator.

Author:

Jeff Fischer

Method Summary

Modifier and Type	Method	Description
default void	applyKeyFromArg(Object param, int position, com.fasterxml.jackson.databind.node.ObjectNode node)	Given a method param filtered as part of getArgs(Object...), return the key fragment as a String.
default Object	generate(Object... params)
default Object	generate(Object target, Method method, Object... params)
default Object[]	getArgs(Object... params)	Give the method call params passed, which params should be used in cache key determination.
default String	getRouteKey()

Method Detail

generate

default Object generate(@NonNull
                        Object target,
                        @NonNull
                        Method method,
                        @NonNull
                        Object... params)

Specified by:

generate in interface org.springframework.cache.interceptor.KeyGenerator

generate

default Object generate(@NonNull
                        Object... params)

getRouteKey

default String getRouteKey()

getArgs

default Object[] getArgs(Object... params)

Give the method call params passed, which params should be used in cache key determination.

Parameters:

params - All the params passed to the method call

Returns:

The filtered list of params that should be considered for this cache key determination

applyKeyFromArg

default void applyKeyFromArg(Object param,
                             int position,
                             com.fasterxml.jackson.databind.node.ObjectNode node)

Given a method param filtered as part of getArgs(Object...), return the key fragment as a String. Implementors have an opportunity to refine the key value here based on the method param. For example, an implementation could return the contextId for an entity passed as a param.

Parameters:

param - The filtered method param

position - The position of the parameter in the method signature