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| <div class="subTitle">org.apache.cayenne.cache</div> |
| <h2 title="Class MapQueryCache" class="title">Class MapQueryCache</h2> |
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| <ul class="inheritance"> |
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| <li> |
| <ul class="inheritance"> |
| <li>org.apache.cayenne.cache.MapQueryCache</li> |
| </ul> |
| </li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></dd> |
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| <br> |
| <pre>public class <span class="strong">MapQueryCache</span> |
| extends <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre> |
| <div class="block">A default implementation of the <a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache"><code>QueryCache</code></a> interface that stores data in a |
| non-expiring LRUMap.</div> |
| <dl><dt><span class="strong">Since:</span></dt> |
| <dd>3.0</dd> |
| <dt><span class="strong">See Also:</span></dt><dd><a href="../../../../serialized-form.html#org.apache.cayenne.cache.MapQueryCache">Serialized Form</a></dd></dl> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#DEFAULT_CACHE_SIZE">DEFAULT_CACHE_SIZE</a></strong></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.cayenne.cache.MapQueryCache.CacheEntry></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#map">map</a></strong></code> </td> |
| </tr> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#MapQueryCache()">MapQueryCache</a></strong>()</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#MapQueryCache(int)">MapQueryCache</a></strong>(int maxSize)</code> </td> |
| </tr> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#clear()">clear</a></strong>()</code> |
| <div class="block">Clears all cache entries.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#get(org.apache.cayenne.query.QueryMetadata)">get</a></strong>(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata)</code> |
| <div class="block">Returns a cached query result for the given QueryMetadata or null if the result is |
| not cached or is expired.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#get(org.apache.cayenne.query.QueryMetadata,%20org.apache.cayenne.cache.QueryCacheEntryFactory)">get</a></strong>(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata, |
| <a href="../../../../org/apache/cayenne/cache/QueryCacheEntryFactory.html" title="interface in org.apache.cayenne.cache">QueryCacheEntryFactory</a> factory)</code> |
| <div class="block">Returns a non-null cached value.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#put(org.apache.cayenne.query.QueryMetadata,%20java.util.List)">put</a></strong>(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata, |
| <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a> results)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#remove(java.lang.String)">remove</a></strong>(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</code> |
| <div class="block">Removes a single entry from cache.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#removeGroup(java.lang.String)">removeGroup</a></strong>(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> groupKey)</code> |
| <div class="block">Removes a group of entries identified by group key.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/cache/MapQueryCache.html#size()">size</a></strong>()</code> |
| <div class="block">Returns the number of entries currently in the cache, including expired but not |
| removed entries.</div> |
| </td> |
| </tr> |
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| <h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
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| <div class="details"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="DEFAULT_CACHE_SIZE"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>DEFAULT_CACHE_SIZE</h4> |
| <pre>public static final int DEFAULT_CACHE_SIZE</pre> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#org.apache.cayenne.cache.MapQueryCache.DEFAULT_CACHE_SIZE">Constant Field Values</a></dd></dl> |
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| <a name="map"> |
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| <h4>map</h4> |
| <pre>protected <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.cayenne.cache.MapQueryCache.CacheEntry> map</pre> |
| </li> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor_detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="MapQueryCache()"> |
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| <h4>MapQueryCache</h4> |
| <pre>public MapQueryCache()</pre> |
| </li> |
| </ul> |
| <a name="MapQueryCache(int)"> |
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| </a> |
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| <h4>MapQueryCache</h4> |
| <pre>public MapQueryCache(int maxSize)</pre> |
| </li> |
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| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <li class="blockList"><a name="method_detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="get(org.apache.cayenne.query.QueryMetadata)"> |
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| </a> |
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| <li class="blockList"> |
| <h4>get</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a> get(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata)</pre> |
| <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#get(org.apache.cayenne.query.QueryMetadata)">QueryCache</a></code></strong></div> |
| <div class="block">Returns a cached query result for the given QueryMetadata or null if the result is |
| not cached or is expired.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#get(org.apache.cayenne.query.QueryMetadata)">get</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="get(org.apache.cayenne.query.QueryMetadata, org.apache.cayenne.cache.QueryCacheEntryFactory)"> |
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| </a> |
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| <h4>get</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a> get(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata, |
| <a href="../../../../org/apache/cayenne/cache/QueryCacheEntryFactory.html" title="interface in org.apache.cayenne.cache">QueryCacheEntryFactory</a> factory)</pre> |
| <div class="block">Returns a non-null cached value. If it is not present in the cache, it is obtained |
| by calling <a href="../../../../org/apache/cayenne/cache/QueryCacheEntryFactory.html#createObject()"><code>QueryCacheEntryFactory.createObject()</code></a> without blocking the cache. As |
| a result there is a potential of multiple threads to be updating cache in parallel - |
| this wouldn't lead to corruption of the cache, but can be suboptimal.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#get(org.apache.cayenne.query.QueryMetadata,%20org.apache.cayenne.cache.QueryCacheEntryFactory)">get</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="put(org.apache.cayenne.query.QueryMetadata, java.util.List)"> |
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| </a> |
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| <h4>put</h4> |
| <pre>public void put(<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata, |
| <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a> results)</pre> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#put(org.apache.cayenne.query.QueryMetadata,%20java.util.List)">put</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="remove(java.lang.String)"> |
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| <h4>remove</h4> |
| <pre>public void remove(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</pre> |
| <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#remove(java.lang.String)">QueryCache</a></code></strong></div> |
| <div class="block">Removes a single entry from cache.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#remove(java.lang.String)">remove</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="removeGroup(java.lang.String)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>removeGroup</h4> |
| <pre>public void removeGroup(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> groupKey)</pre> |
| <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#removeGroup(java.lang.String)">QueryCache</a></code></strong></div> |
| <div class="block">Removes a group of entries identified by group key. Note that depending on |
| implementation this method may either actively remove the entries belonging to the |
| group or just mark them as expired, so that they are refreshed on the next access. |
| In the former case the cache size would shrink, but in the later the cache size |
| will not change after calling this method.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#removeGroup(java.lang.String)">removeGroup</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="clear()"> |
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| </a> |
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| <h4>clear</h4> |
| <pre>public void clear()</pre> |
| <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#clear()">QueryCache</a></code></strong></div> |
| <div class="block">Clears all cache entries.</div> |
| <dl> |
| <dt><strong>Specified by:</strong></dt> |
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| <h4>size</h4> |
| <pre>public int size()</pre> |
| <div class="block"><strong>Description copied from interface: <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#size()">QueryCache</a></code></strong></div> |
| <div class="block">Returns the number of entries currently in the cache, including expired but not |
| removed entries.</div> |
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| <dt><strong>Specified by:</strong></dt> |
| <dd><code><a href="../../../../org/apache/cayenne/cache/QueryCache.html#size()">size</a></code> in interface <code><a href="../../../../org/apache/cayenne/cache/QueryCache.html" title="interface in org.apache.cayenne.cache">QueryCache</a></code></dd> |
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