我用类图运行 Doxygen,我得到了这个图 Inheritance graph
谁能解释 :: 在 org:apache::Cassandra::utils::ICachable
答案 0 :(得分:0)
:: 是一个作用域解析运算符,通常在您必须明确您所指的内容时使用。举个例子:
KStream<String,String> stream =
builder.stream("input", Consumed.as("Customer_transactions_input_topic"));
stream.filter((k,v) -> !v.equals("invalid_txn"), Named.as("filter_out_invalid_txns"))
.mapValues((v) -> v.substring(0,5), Named.as("Map_values_to_first_6_characters"))
.to("output", Produced.as("Mapped_transactions_output_topic"));
Topologies:
Sub-topology: 0
Source: Customer_transactions_input_topic (topics: [input])
--> filter_out_invalid_txns
Processor: filter_out_invalid_txns (stores: [])
--> Map_values_to_first_6_characters
<-- Customer_transactions_input_topic
Processor: Map_values_to_first_6_characters (stores: [])
--> Mapped_transactions_output_topic
<-- filter_out_invalid_txns
Sink: Mapped_transactions_output_topic (topic: output)
<-- Map_values_to_first_6_characters
在此示例中,您可以指定正在调用哪个 foo() 函数。
如果您需要有关图表图例的帮助,请查看此 link,它可能对您有所帮助。