helenus/README.md

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# casser ![build](https://travis-ci.org/noorq/casser.svg?branch=master)
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Cutting edge Java 8 Cassandra Client
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Current status: Active development
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### Features
* Leverages Java 8 language capabilities to build CQL queries
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* Simple function-style stream API
* Reactive asynchronous and synchronous API
* Provides Java mapping for Tables and User Defined Types
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### Requirements
* Only JVM 8
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* Latest Datastax Driver 2.1.5
* Latest Cassandra
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* Maven
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### Example
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Entity definition:
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```
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@Table("timelines")
public interface Timeline {
@PartitionKey
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UUID userId();
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@ClusteringColumn
@DataTypeName(Name.TIMEUUID)
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Date timestamp();
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@Column
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String text();
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}
```
Session initialization:
```
Timeline timeline = Casser.dsl(Timeline.class);
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CasserSession session = Casser.init(getSession()).showCql().add(Timeline.class).autoCreateDrop().get();
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```
Select information:
```
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session.select(timeline::userId, timeline::timestamp, timeline::text)
.where(timeline::userId, Operator.EQ, userId)
.orderBy(timeline::timestamp, "desc").limit(5).sync()
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.forEach(System.out::println);
```
Insert information:
```
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TimelineImpl post = new TimelineImpl();
post.userId=userId;
post.timestamp=new Date(postTime+1000L*i);
post.text="hello";
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session.upsert(post).sync();
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```