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| <div class="subTitle">org.apache.ignite.cache</div> |
| <h2 title="Enum CacheMemoryMode" class="title">Enum CacheMemoryMode</h2> |
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| <li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><<a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a>></li> |
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| <ul class="inheritance"> |
| <li>org.apache.ignite.cache.CacheMemoryMode</li> |
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| <pre>public enum <span class="strong">CacheMemoryMode</span> |
| extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a>></pre> |
| <div class="block">Defines set of memory modes. Memory modes help control whether cache entries are |
| stored on heap memory, offheap memory, or in swap space.</div> |
| </li> |
| </ul> |
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| <h3>Enum Constant Summary</h3> |
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| <caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Enum Constant and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#OFFHEAP_TIERED">OFFHEAP_TIERED</a></strong></code> |
| <div class="block">Works the same as <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#ONHEAP_TIERED"><code>ONHEAP_TIERED</code></a>, except that entries never end up in heap memory and get |
| stored in offheap memory right away.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#OFFHEAP_VALUES">OFFHEAP_VALUES</a></strong></code> |
| <div class="block">Entry keys will be stored on heap memory, and values will be stored in offheap memory.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#ONHEAP_TIERED">ONHEAP_TIERED</a></strong></code> |
| <div class="block">Entries will be stored on-heap first.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#valueOf(java.lang.String)">valueOf</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a>[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#values()">values</a></strong>()</code> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
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| <code><a href="http://docs.oracle.com/javase/7/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/7/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/7/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/7/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/7/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/7/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li> |
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| <h4>ONHEAP_TIERED</h4> |
| <pre>public static final <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a> ONHEAP_TIERED</pre> |
| <div class="block">Entries will be stored on-heap first. The onheap tiered storage works as follows: |
| <nl> |
| <li>Entries are cached on heap memory first.</li> |
| <li> |
| If offheap memory is enabled and eviction policy evicts an entry from heap memory, entry will |
| be moved to offheap memory. If offheap memory is disabled, then entry is simply discarded. |
| </li> |
| <li> |
| If swap space is enabled and offheap memory fills up, then entry will be evicted into swap space. |
| If swap space is disabled, then entry will be discarded. If swap is enabled and offheap memory |
| is disabled, then entry will be evicted directly from heap memory into swap. |
| </li> |
| </nl> |
| <p> |
| <b>Note</b> that heap memory evictions are handled by configured <a href="../../../../org/apache/ignite/cache/eviction/EvictionPolicy.html" title="interface in org.apache.ignite.cache.eviction"><code>EvictionPolicy</code></a> |
| implementation. By default, no eviction policy is enabled, so entries never leave heap |
| memory space unless explicitly removed.</div> |
| </li> |
| </ul> |
| <a name="OFFHEAP_TIERED"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>OFFHEAP_TIERED</h4> |
| <pre>public static final <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a> OFFHEAP_TIERED</pre> |
| <div class="block">Works the same as <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html#ONHEAP_TIERED"><code>ONHEAP_TIERED</code></a>, except that entries never end up in heap memory and get |
| stored in offheap memory right away. Entries get cached in offheap memory first and then |
| get evicted to swap, if one is configured.</div> |
| </li> |
| </ul> |
| <a name="OFFHEAP_VALUES"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>OFFHEAP_VALUES</h4> |
| <pre>public static final <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a> OFFHEAP_VALUES</pre> |
| <div class="block">Entry keys will be stored on heap memory, and values will be stored in offheap memory. Note |
| that in this mode entries can be evicted only to swap. The evictions will happen according |
| to configured <a href="../../../../org/apache/ignite/cache/eviction/EvictionPolicy.html" title="interface in org.apache.ignite.cache.eviction"><code>EvictionPolicy</code></a>.</div> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a>[] values()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (CacheMemoryMode c : CacheMemoryMode.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>an array containing the constants of this enum type, in |
| the order they are declared</dd></dl> |
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| <pre>public static <a href="../../../../org/apache/ignite/cache/CacheMemoryMode.html" title="enum in org.apache.ignite.cache">CacheMemoryMode</a> valueOf(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the enum constant with the specified name</dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant |
| with the specified name</dd> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd></dl> |
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