mirror of https://github.com/apache/kafka.git
update source link in interactive query page (#9261)
Currently, the source reference are all pointing to the 1.0 version codes, which is obviously wrong. Update to the current dotVersion. Reviewers: John Roesler <vvcephei@apache.org>
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Luke Chen
GitHub
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@ -146,7 +146,7 @@
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<span class="n">streams</span><span class="o">.</span><span class="na">start</span><span class="o">();</span>
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</pre></div>
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</div>
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<p>After the application has started, you can get access to “CountsKeyValueStore” and then query it via the <a class="reference external" href="https://github.com/apache/kafka/blob/1.0/streams/src/main/java/org/apache/kafka/streams/state/ReadOnlyKeyValueStore.java">ReadOnlyKeyValueStore</a> API:</p>
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<p>After the application has started, you can get access to “CountsKeyValueStore” and then query it via the <a class="reference external" href="https://github.com/apache/kafka/blob/{{dotVersion}}/streams/src/main/java/org/apache/kafka/streams/state/ReadOnlyKeyValueStore.java">ReadOnlyKeyValueStore</a> API:</p>
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<div class="highlight-java"><div class="highlight"><pre><span></span><span class="c1">// Get the key-value store CountsKeyValueStore</span>
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<span class="n">ReadOnlyKeyValueStore</span><span class="o"><</span><span class="n">String</span><span class="o">,</span> <span class="n">Long</span><span class="o">></span> <span class="n">keyValueStore</span> <span class="o">=</span>
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<span class="n">streams</span><span class="o">.</span><span class="na">store</span><span class="o">(</span><span class="s">"CountsKeyValueStore"</span><span class="o">,</span> <span class="n">QueryableStoreTypes</span><span class="o">.</span><span class="na">keyValueStore</span><span class="o">());</span>
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@ -206,7 +206,7 @@
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<span class="o">.</span><span class="na">count</span><span class="o">(</span><span class="n">Materialized</span><span class="o">.<</span><span class="n">String</span><span class="o">,</span> <span class="n">Long</span><span class="o">,</span> <span class="n">WindowStore</span><span class="o"><</span><span class="n">Bytes</span><span class="o">,</span> <span class="kt">byte</span><span class="o">[]></span><span class="n">as</span><span class="o">(</span><span class="s">"CountsWindowStore"</span><span class="o">));</span>
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</pre></div>
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</div>
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<p>After the application has started, you can get access to “CountsWindowStore” and then query it via the <a class="reference external" href="https://github.com/apache/kafka/blob/1.0/streams/src/main/java/org/apache/kafka/streams/state/ReadOnlyWindowStore.java">ReadOnlyWindowStore</a> API:</p>
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<p>After the application has started, you can get access to “CountsWindowStore” and then query it via the <a class="reference external" href="https://github.com/apache/kafka/blob/{{dotVersion}}/streams/src/main/java/org/apache/kafka/streams/state/ReadOnlyWindowStore.java">ReadOnlyWindowStore</a> API:</p>
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<div class="highlight-java"><div class="highlight"><pre><span></span><span class="c1">// Get the window store named "CountsWindowStore"</span>
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<span class="n">ReadOnlyWindowStore</span><span class="o"><</span><span class="n">String</span><span class="o">,</span> <span class="n">Long</span><span class="o">></span> <span class="n">windowStore</span> <span class="o">=</span>
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<span class="n">streams</span><span class="o">.</span><span class="na">store</span><span class="o">(</span><span class="s">"CountsWindowStore"</span><span class="o">,</span> <span class="n">QueryableStoreTypes</span><span class="o">.</span><span class="na">windowStore</span><span class="o">());</span>
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@ -259,7 +259,7 @@
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</div>
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<p>To make this store queryable you must:</p>
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<ul class="simple">
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<li>Provide an implementation of <a class="reference external" href="https://github.com/apache/kafka/blob/1.0/streams/src/main/java/org/apache/kafka/streams/state/QueryableStoreType.java">QueryableStoreType</a>.</li>
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<li>Provide an implementation of <a class="reference external" href="https://github.com/apache/kafka/blob/{{dotVersion}}/streams/src/main/java/org/apache/kafka/streams/state/QueryableStoreType.java">QueryableStoreType</a>.</li>
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<li>Provide a wrapper class that has access to all of the underlying instances of the store and is used for querying.</li>
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</ul>
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<p>Here is how to implement <code class="docutils literal"><span class="pre">QueryableStoreType</span></code>:</p>
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@ -281,7 +281,7 @@
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multiple local instances of a particular state store. The wrapper class hides this complexity and lets you query a “logical”
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state store by name without having to know about all of the underlying local instances of that state store.</p>
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<p>When implementing your wrapper class you must use the
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<a class="reference external" href="https://github.com/apache/kafka/blob/1.0/streams/src/main/java/org/apache/kafka/streams/state/internals/StateStoreProvider.java">StateStoreProvider</a>
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<a class="reference external" href="https://github.com/apache/kafka/blob/{{dotVersion}}/streams/src/main/java/org/apache/kafka/streams/state/internals/StateStoreProvider.java">StateStoreProvider</a>
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interface to get access to the underlying instances of your store.
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<code class="docutils literal"><span class="pre">StateStoreProvider#stores(String</span> <span class="pre">storeName,</span> <span class="pre">QueryableStoreType<T></span> <span class="pre">queryableStoreType)</span></code> returns a <code class="docutils literal"><span class="pre">List</span></code> of state
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stores with the given storeName and of the type as defined by <code class="docutils literal"><span class="pre">queryableStoreType</span></code>.</p>
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