LiteflowConfig config = new LiteflowConfig();
//rule file path
config.setRuleSource("config/flow.el.xml");
//-----------------The following configs are optional-----------------
//Whether liteflow is enabled, the default is true
config.setEnable(true);
//Whether the banner of liteflow is enabled, the default is true
config.setPrintBanner(true);
//The node of zkNode, only works when zk is used as the configuration source
config.setZkNode("/lite-flow/flow");
//Maximum number of slots for context, default is 1024
config.setSlotSize(1024);
//The number of threads of the execute2Future of FlowExecutor, the default is 64
config.setMainExecutorWorks(64);
//FlowExecutor's execute2Future's custom thread pool Builder, LiteFlow provides the default Builder
config.setMainExecutorClass("com.yomahub.liteflow.thread.LiteFlowDefaultMainExecutorBuilder");
//Custom request ID generation class, LiteFlow provides a default generation class
config.setRequestIdGeneratorClass("com.yomahub.liteflow.flow.id.DefaultRequestIdGenerator");
//Thread pool Builder for parallel nodes, LiteFlow provides default Builder
config.setThreadExecutorClass("com.yomahub.liteflow.thread.LiteFlowDefaultWhenExecutorBuilder");
//The longest waiting time in seconds for asynchronous threads (only for when), the default value is 15
config.setWhenMaxWaitSeconds(15);
//The maximum number of threads in the global asynchronous thread pool of the when node, the default is 16
config.setWhenMaxWorkers(16);
//When node global asynchronous thread pool waiting queue number, the default is 512
config.setWhenQueueLimit(512);
//Whether to parse the rules at startup, the default is true
config.setParseOnStart(true);
//Global retries, default is 0
config.setRetryCount(0);
//Whether to support mixing of different types of loading methods, the default is false
config.setSupportMultipleType(false);
//Global default node executor
config.setNodeExecutorClass("com.yomahub.liteflow.flow.executor.DefaultNodeExecutor");
//Whether to print the log during execution, the default is true
config.setPrintExecutionLog(true);
//Whether monitoring is enabled, it is disabled by default
config.setEnableLog(false);
//Monitoring queue storage size, the default value is 200
config.setQueueLimit(200);
//Monitor how many milliseconds to delay execution at the beginning, the default value is 300000 milliseconds, which is 5 minutes
config.setDelay(300000L);
//how many milliseconds the monitoring log print. The default value is 300000 milliseconds, which is 5 minutes.
config.setPeriod(300000L);

notice

rule-source is required whenever rules are used.

But if you construct rules dynamically with code, then the rule-source configuration is automatically invalid. Because code constructs use code to assemble rules, no rules files are required. For details, please refer to Dynamic Rules.