2017年9月28日

schema inference(parsing)

摘要: So, how to infer? in JAVA Platform using xsd-gen-0.2.0-jar-with-dependencies.jar or xbean-2.2.0.jar. input output can be used to get the response SOAP 阅读全文

posted @ 2017-09-28 18:02 satyrs 阅读(148) 评论(0) 推荐(0)

Dataset.scala(sql)

摘要: 1 object Dataset private to sql leveltest & errors: :后为解释source code内容; //为插入分析1 spark.read.textFile("...")textFile: org.apache.spark.sql.Dataset[Stri 阅读全文

posted @ 2017-09-28 16:46 satyrs 阅读(248) 评论(0) 推荐(0)

method visibility

摘要: method access modifier 1 most restrictive access is to mark a method as “object-private.” 只对current instance available,Other instances of the same cla 阅读全文

posted @ 2017-09-28 14:48 satyrs 阅读(144) 评论(0) 推荐(0)

tips(java always to be continue...)

摘要: auto-boxing and cache problem http://blog.csdn.net/xad707348125/article/details/47017633 自动装箱时调用valueof使一定范围int值在cache中,而若要修改真实值需要reflect里的set,必须要获得ac 阅读全文

posted @ 2017-09-28 07:35 satyrs 阅读(94) 评论(0) 推荐(0)

maps in java(java)

摘要: 1 hashmap(abstractmap clonable serializable) 2 java.util.HashTable collection未有之前的array implementation,drooped,但是 thread safe,overhead thread写map即call 阅读全文

posted @ 2017-09-28 06:55 satyrs 阅读(97) 评论(0) 推荐(0)

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