Harif-Rahman opened a new issue, #25102:
URL: https://github.com/apache/shardingsphere/issues/25102
## Question
**For English only**, other languages will not accept.
We are planning to upgrade shardingsphere from 4.0.1 to 5.x
We already have customshardingalgorithm to get the shard id from on
datastore like redis.
4.0.1 code :
shardingRuleConfig.setDefaultDatabaseShardingStrategyConfig(new
ComplexShardingStrategyConfiguration(CLIENT_ID, appShardingAlgorithm));
@Component
public class AppShardingAlgorithm implements
ComplexKeysShardingAlgorithm<Long> {
private final ShardService shardService;
@Autowired
public AppShardingAlgorithm(
ShardService shardService
) {
this.shardService = shardService;
}
@Override
@SuppressWarnings("unchecked")
public Collection<String> doSharding(Collection<String>
availableTargetNames, ComplexKeysShardingValue<Long> shardingValues) {
// get shard id from redis
return applicableTargetNames;
}
}
In the version 5.x i can't able to pass the custom object like i used
earlier whatever the doc i referred its expecting me to pass it as class_based
like the below :
[ shardingRuleConfig.setDefaultDatabaseShardingStrategy(new
ComplexShardingStrategyConfiguration(CLIENT_ID, "appShardingAlgorithm"));
Properties propsComplex = new Properties();
propsComplex.setProperty("strategy", "COMPLEX");
propsComplex.setProperty("algorithmClassName",
"a.b.c.AppShardingAlgorithm");
shardingRuleConfig.getShardingAlgorithms().put("appShardingAlgorithm",
new AlgorithmConfiguration("CLASS_BASED", propsComplex));](url)
In AppShardingAlgorithm class i have dependency to get the shard details
from db or redis in this case i need to have that dependency for this.
In this case how to pass the custom object for the sharding algorithm ?
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