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| <title>HugeGraph 0.2 Release Notes | HugeGraph</title> |
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| 功能更新 |
| 0.2版实现了图数据库基本功能，提供如下功能： |
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| <meta property="og:description" content="API & Java Client 功能更新 0.2版实现了图数据库基本功能，提供如下功能： |
| 元数据（Schema） 顶点类型（Vertex Label） 创建顶点类型 删除顶点类型 查询顶点类型 增加顶点类型的属性 边类型（Edge Label） 创建边类型 删除边类型 查询边类型 增加边类型的属性 属性（Property Key） 创建属性 删除属性 查询属性 索引（Index Label） 创建索引 删除索引 查询索引 元数据检查 元数据依赖的其它元数据检查（如Vertex Label依赖Property Key） 数据依赖的元数据检查（如Vertex依赖Vertex Label） 图数据 顶点（Vertex） 增加顶点 |
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| <meta itemprop="description" content="API & Java Client 功能更新 0.2版实现了图数据库基本功能，提供如下功能： |
| 元数据（Schema） 顶点类型（Vertex Label） 创建顶点类型 删除顶点类型 查询顶点类型 增加顶点类型的属性 边类型（Edge Label） 创建边类型 删除边类型 查询边类型 增加边类型的属性 属性（Property Key） 创建属性 删除属性 查询属性 索引（Index Label） 创建索引 删除索引 查询索引 元数据检查 元数据依赖的其它元数据检查（如Vertex Label依赖Property Key） 数据依赖的元数据检查（如Vertex依赖Vertex Label） 图数据 顶点（Vertex） 增加顶点 |
| 删除顶点 |
| 增加顶点属性 |
| 删除顶点属性（必须为非索引列） |
| 批量插入顶点 |
| 查询 |
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| <meta name="twitter:description" content="API & Java Client 功能更新 0.2版实现了图数据库基本功能，提供如下功能： |
| 元数据（Schema） 顶点类型（Vertex Label） 创建顶点类型 删除顶点类型 查询顶点类型 增加顶点类型的属性 边类型（Edge Label） 创建边类型 删除边类型 查询边类型 增加边类型的属性 属性（Property Key） 创建属性 删除属性 查询属性 索引（Index Label） 创建索引 删除索引 查询索引 元数据检查 元数据依赖的其它元数据检查（如Vertex Label依赖Property Key） 数据依赖的元数据检查（如Vertex依赖Vertex Label） 图数据 顶点（Vertex） 增加顶点 |
| 删除顶点 |
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| <li><a href="#api--java-client">API & Java Client</a></li> |
| <li><a href="#元数据schema">元数据（Schema）</a></li> |
| <li><a href="#图数据">图数据</a></li> |
| <li><a href="#事务">事务</a></li> |
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| <li><a href="#缓存">缓存</a></li> |
| <li><a href="#接口restful-api">接口（RESTful API）</a></li> |
| <li><a href="#后端支持">后端支持</a></li> |
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| <div class="td-content"> |
| <h1>HugeGraph 0.2 Release Notes</h1> |
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| <h3 id="api--java-client">API & Java Client</h3> |
| <h4 id="功能更新">功能更新</h4> |
| <p>0.2版实现了图数据库基本功能，提供如下功能：</p> |
| <h3 id="元数据schema">元数据（Schema）</h3> |
| <h4 id="顶点类型vertex-label">顶点类型（Vertex Label）</h4> |
| <ul> |
| <li>创建顶点类型</li> |
| <li>删除顶点类型</li> |
| <li>查询顶点类型</li> |
| <li>增加顶点类型的属性</li> |
| </ul> |
| <h4 id="边类型edge-label">边类型（Edge Label）</h4> |
| <ul> |
| <li>创建边类型</li> |
| <li>删除边类型</li> |
| <li>查询边类型</li> |
| <li>增加边类型的属性</li> |
| </ul> |
| <h4 id="属性property-key">属性（Property Key）</h4> |
| <ul> |
| <li>创建属性</li> |
| <li>删除属性</li> |
| <li>查询属性</li> |
| </ul> |
| <h4 id="索引index-label">索引（Index Label）</h4> |
| <ul> |
| <li>创建索引</li> |
| <li>删除索引</li> |
| <li>查询索引</li> |
| </ul> |
| <h4 id="元数据检查">元数据检查</h4> |
| <ul> |
| <li>元数据依赖的其它元数据检查（如Vertex Label依赖Property Key）</li> |
| <li>数据依赖的元数据检查（如Vertex依赖Vertex Label）</li> |
| </ul> |
| <h3 id="图数据">图数据</h3> |
| <h4 id="顶点vertex">顶点（Vertex）</h4> |
| <ul> |
| <li> |
| <p>增加顶点</p> |
| </li> |
| <li> |
| <p>删除顶点</p> |
| </li> |
| <li> |
| <p>增加顶点属性</p> |
| </li> |
| <li> |
| <p>删除顶点属性（必须为非索引列）</p> |
| </li> |
| <li> |
| <p>批量插入顶点</p> |
| </li> |
| <li> |
| <p>查询</p> |
| </li> |
| <li> |
| <p>批量查询</p> |
| </li> |
| <li> |
| <p>顶点ID策略</p> |
| <ul> |
| <li>用户指定ID（字符串）</li> |
| <li>用户指定某些属性组合作为ID（拼接为可见字符串）</li> |
| <li>自动生成ID</li> |
| </ul> |
| </li> |
| </ul> |
| <h4 id="边edge">边（Edge）</h4> |
| <ul> |
| <li>增加边</li> |
| <li>增加多条同类型边到指定的两个节点（SortKey）</li> |
| <li>删除边</li> |
| <li>增加边属性</li> |
| <li>删除边属性（必须为非索引列）</li> |
| <li>批量插入边</li> |
| <li>查询</li> |
| <li>批量查询</li> |
| </ul> |
| <h4 id="顶点边属性">顶点/边属性</h4> |
| <ul> |
| <li> |
| <p>属性类型支持</p> |
| <ul> |
| <li>text</li> |
| <li>boolean</li> |
| <li>byte、blob</li> |
| <li>int、long</li> |
| <li>float、double</li> |
| <li>timestamp</li> |
| <li>uuid</li> |
| </ul> |
| </li> |
| <li> |
| <p>支持单值属性</p> |
| </li> |
| <li> |
| <p>支持多值属性：List、Set（<em>注意：非嵌套属性</em>）</p> |
| </li> |
| </ul> |
| <h3 id="事务">事务</h3> |
| <ul> |
| <li>原子性级别保证（<em>依赖后端</em>）</li> |
| <li>自动提交事务</li> |
| <li>手动提交事务</li> |
| <li>并行事务</li> |
| </ul> |
| <h3 id="索引">索引</h3> |
| <h4 id="索引类型">索引类型</h4> |
| <ul> |
| <li>二级索引</li> |
| <li>范围索引（数字类型）</li> |
| </ul> |
| <h4 id="索引操作">索引操作</h4> |
| <ul> |
| <li>为指定类型的顶点/边创建单列索引（不支持List或Set列创建索引）</li> |
| <li>为指定类型的顶点/边创建复合索引（不支持List或Set列创建索引，复合索引为前缀索引）</li> |
| <li>删除指定类型顶点/边的索引（部分或全部索引均可）</li> |
| <li>重建指定类型顶点/边的索引（部分或全部索引均可）</li> |
| </ul> |
| <h3 id="查询遍历">查询/遍历</h3> |
| <ul> |
| <li> |
| <p>列出所有元数据、图数据（支持Limit，不支持分页）</p> |
| </li> |
| <li> |
| <p>根据ID查询元数据、图数据</p> |
| </li> |
| <li> |
| <p>根据指定属性的值查询图数据</p> |
| </li> |
| <li> |
| <p>根据指定属性的值范围查询图数据（属性必须为数字类型）</p> |
| </li> |
| <li> |
| <p>根据指定顶点/边类型、指定属性的值查询顶点/边</p> |
| </li> |
| <li> |
| <p>根据指定顶点/边类型、指定属性的值范围查询顶点（属性必须为数字类型）</p> |
| </li> |
| <li> |
| <p>根据顶点类型（Vertex Label）查询顶点</p> |
| </li> |
| <li> |
| <p>根据边类型（Edge Label）查询边</p> |
| </li> |
| <li> |
| <p>根据顶点查询边</p> |
| <ul> |
| <li>查询顶点的所有边</li> |
| <li>查询顶点的指定方向边（出边、入边）</li> |
| <li>查询顶点的指定方向、指定类型边</li> |
| <li>查询两个顶点的同类型边中的某条边（SortKey）</li> |
| </ul> |
| </li> |
| <li> |
| <p>标准Gremlin遍历</p> |
| </li> |
| </ul> |
| <h3 id="缓存">缓存</h3> |
| <h4 id="可缓存内容">可缓存内容</h4> |
| <ul> |
| <li>元数据缓存</li> |
| <li>顶点缓存</li> |
| </ul> |
| <h4 id="缓存特性">缓存特性</h4> |
| <ul> |
| <li>LRU策略</li> |
| <li>高性能并发访问</li> |
| <li>支持超时过期机制</li> |
| </ul> |
| <h3 id="接口restful-api">接口（RESTful API）</h3> |
| <ul> |
| <li>版本号接口</li> |
| <li>图实例接口</li> |
| <li>元数据接口</li> |
| <li>图数据接口</li> |
| <li>Gremlin接口</li> |
| </ul> |
| <p>更多细节详见<a href="/clients/hugegraph-api.html">API文档</a></p> |
| <h3 id="后端支持">后端支持</h3> |
| <h4 id="支持cassandra后端">支持Cassandra后端</h4> |
| <ul> |
| <li>持久化</li> |
| <li>CQL3</li> |
| <li>集群</li> |
| </ul> |
| <h4 id="支持memory后端仅用于测试">支持Memory后端（仅用于测试）</h4> |
| <ul> |
| <li>非持久化</li> |
| <li>部分特性无法支持（如：更新边属性、根据边类型查询边）</li> |
| </ul> |
| <h3 id="其它">其它</h3> |
| <h4 id="支持配置项">支持配置项</h4> |
| <ul> |
| <li>后端存储类型</li> |
| <li>序列化方式</li> |
| <li>缓存参数</li> |
| </ul> |
| <h4 id="支持多图实例">支持多图实例</h4> |
| <ul> |
| <li>静态方式（<em>增加多个图配置文件</em>）</li> |
| </ul> |
| <h4 id="版本检查">版本检查</h4> |
| <ul> |
| <li>内部依赖包匹配版本检查</li> |
| <li>API匹配版本检查</li> |
| </ul> |
| |
| |
| <style> |
| .feedback--answer { |
| display: inline-block; |
| } |
| .feedback--answer-no { |
| margin-left: 1em; |
| } |
| .feedback--response { |
| display: none; |
| margin-top: 1em; |
| } |
| .feedback--response__visible { |
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| } |
| </style> |
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| const yesButton = document.querySelector('.feedback--answer-yes'); |
| const noButton = document.querySelector('.feedback--answer-no'); |
| const yesResponse = document.querySelector('.feedback--response-yes'); |
| const noResponse = document.querySelector('.feedback--response-no'); |
| const disableButtons = () => { |
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| const sendFeedback = (value) => { |
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| <div class="text-muted mt-5 pt-3 border-top"> |
| Last modified April 17, 2022: <a href="https://github.com/apache/incubator-hugegraph/commit/ef36544478e135c747b8f0d13f1fde8b7faa1b75">rebuild doc (ef36544)</a> |
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