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mapper可以利用自定义编解码器将自定义转换映射到 columns和fields. Declaring codecs 假定有一张表,含有timestamp column: 还create了一个custom class, 一个codec 来 vonvert it: Pre-registered co 阅读全文
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前言 Java driver 有如下几种 Achilles Astyanax Casser Datastax Java driver Kundera PlayORM cassandra的java客户端有两种,一种是thrift协议的接口实现的,这个是cassandra早期版本唯一支持的远程通信协议, 阅读全文
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DataStax Java Driver for Apache git地址: Error:osgi: [cassandra-driver-core] Manifest file '-osgi.bnd' missing - please check OSGi facet settings. Maven 阅读全文
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首先,创建一个MappingManager. It wraps an existing Session instance: MappingManager是线程安全的. 实体mappers 实体类(@Table注解)由专门的Mapper对象管理. Mapper是线程安全的. manager内部缓存Ma 阅读全文
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Creating a table entity A table entity is a class that will be mapped to a table in Cassandra. It is annotated with @Table: @Table takes the following 阅读全文