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| <title>Class AffinityKeyMappedAttribute
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| <h1 id="Apache_Ignite_Core_Cache_Affinity_AffinityKeyMappedAttribute" data-uid="Apache.Ignite.Core.Cache.Affinity.AffinityKeyMappedAttribute" class="text-break">Class AffinityKeyMappedAttribute
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| </h1>
|
| <div class="markdown level0 summary"><p>Specifies cache key field to be used to determine a node on which given cache key will be stored. |
| Only one field or property can be marked with this attribute. |
| <p> |
| This attribute is an alternative to <a class="xref" href="Apache.Ignite.Core.Binary.BinaryTypeConfiguration.html#Apache_Ignite_Core_Binary_BinaryTypeConfiguration_AffinityKeyFieldName">AffinityKeyFieldName</a> setting. |
| This attribute has lower priority than <a class="xref" href="Apache.Ignite.Core.Binary.BinaryTypeConfiguration.html#Apache_Ignite_Core_Binary_BinaryTypeConfiguration_AffinityKeyFieldName">AffinityKeyFieldName</a> setting. |
| <p> |
| One of the major use cases for this attribute is the routing of grid computations |
| to the nodes where the data for this computation is cached, the concept otherwise known as |
| Colocation Of Computations And Data. |
| <p> |
| For example, if a Person object is always accessed together with a Company object for which this person |
| is an employee, then for better performance and scalability it makes sense to colocate Person objects |
| together with their Company object when storing them in cache. |
| To achieve that, cache key used to cache Person objects should have a field or property marked with |
| <a class="xref" href="Apache.Ignite.Core.Cache.Affinity.AffinityKeyMappedAttribute.html">AffinityKeyMappedAttribute</a> attribute, which will provide the value of |
| the company key for which that person works.</p> |
| </div>
|
| <div class="markdown level0 conceptual"></div>
|
| <div class="inheritance">
|
| <h5>Inheritance</h5>
|
| <div class="level0"><span class="xref">System.Object</span></div>
|
| <div class="level1"><span class="xref">System.Attribute</span></div>
|
| <div class="level2"><span class="xref">AffinityKeyMappedAttribute</span></div>
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| </div>
|
| <div classs="implements">
|
| <h5>Implements</h5>
|
| <div><span class="xref">System.Runtime.InteropServices._Attribute</span></div>
|
| </div>
|
| <div class="inheritedMembers">
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| <h5>Inherited Members</h5>
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| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, System.Type)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.MemberInfo, System.Boolean)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.MemberInfo, System.Type)</span>
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| </div>
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| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.MemberInfo, System.Type, System.Boolean)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.MemberInfo, System.Type)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.MemberInfo, System.Type, System.Boolean)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, System.Type)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, System.Type, System.Boolean)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.ParameterInfo, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.ParameterInfo, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.ParameterInfo, System.Type, System.Boolean)</span>
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| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.ParameterInfo, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.ParameterInfo, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Module, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Module)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Module, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Module, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.Module, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.Module, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.Module, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.Module, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Assembly, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Assembly, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Assembly)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttributes(System.Reflection.Assembly, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.Assembly, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefined(System.Reflection.Assembly, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.Assembly, System.Type)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetCustomAttribute(System.Reflection.Assembly, System.Type, System.Boolean)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.Equals(System.Object)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.GetHashCode()</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.Match(System.Object)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.IsDefaultAttribute()</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.System.Runtime.InteropServices._Attribute.GetTypeInfoCount(System.UInt32)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.System.Runtime.InteropServices._Attribute.GetTypeInfo(System.UInt32, System.UInt32, System.IntPtr)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.System.Runtime.InteropServices._Attribute.GetIDsOfNames(System.Guid, System.IntPtr, System.UInt32, System.UInt32, System.IntPtr)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.System.Runtime.InteropServices._Attribute.Invoke(System.UInt32, System.Guid, System.UInt32, System.Int16, System.IntPtr, System.IntPtr, System.IntPtr, System.IntPtr)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Attribute.TypeId</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Object.ToString()</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Object.Equals(System.Object, System.Object)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Object.GetType()</span>
|
| </div>
|
| <div>
|
| <span class="xref">System.Object.MemberwiseClone()</span>
|
| </div>
|
| </div>
|
| <h6><strong>Namespace</strong>: <a class="xref" href="Apache.Ignite.Core.Cache.Affinity.html">Apache.Ignite.Core.Cache.Affinity</a></h6>
|
| <h6><strong>Assembly</strong>: Apache.Ignite.Core.dll</h6>
|
| <h5 id="Apache_Ignite_Core_Cache_Affinity_AffinityKeyMappedAttribute_syntax">Syntax</h5>
|
| <div class="codewrapper">
|
| <pre><code class="lang-csharp hljs">[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)] |
| public sealed class AffinityKeyMappedAttribute : Attribute, _Attribute</code></pre>
|
| </div>
|
| <h3 id="methods">Methods
|
| </h3>
|
| <a id="Apache_Ignite_Core_Cache_Affinity_AffinityKeyMappedAttribute_GetFieldNameFromAttribute_" data-uid="Apache.Ignite.Core.Cache.Affinity.AffinityKeyMappedAttribute.GetFieldNameFromAttribute*"></a>
|
| <h4 id="Apache_Ignite_Core_Cache_Affinity_AffinityKeyMappedAttribute_GetFieldNameFromAttribute_System_Type_" data-uid="Apache.Ignite.Core.Cache.Affinity.AffinityKeyMappedAttribute.GetFieldNameFromAttribute(System.Type)">GetFieldNameFromAttribute(Type)</h4>
|
| <div class="markdown level1 summary"><p>Gets the affinity key field name from attribute.</p> |
| </div>
|
| <div class="markdown level1 conceptual"></div>
|
| <h5 class="decalaration">Declaration</h5>
|
| <div class="codewrapper">
|
| <pre><code class="lang-csharp hljs">public static string GetFieldNameFromAttribute(Type type)</code></pre>
|
| </div>
|
| <h5 class="parameters">Parameters</h5>
|
| <table class="table table-bordered table-striped table-condensed">
|
| <thead>
|
| <tr>
|
| <th>Type</th>
|
| <th>Name</th>
|
| <th>Description</th>
|
| </tr>
|
| </thead>
|
| <tbody>
|
| <tr>
|
| <td><span class="xref">System.Type</span></td>
|
| <td><span class="parametername">type</span></td>
|
| <td></td>
|
| </tr>
|
| </tbody>
|
| </table>
|
| <h5 class="returns">Returns</h5>
|
| <table class="table table-bordered table-striped table-condensed">
|
| <thead>
|
| <tr>
|
| <th>Type</th>
|
| <th>Description</th>
|
| </tr>
|
| </thead>
|
| <tbody>
|
| <tr>
|
| <td><span class="xref">System.String</span></td>
|
| <td></td>
|
| </tr>
|
| </tbody>
|
| </table>
|
| <h3 id="implements">Implements</h3>
|
| <div>
|
| <span class="xref">System.Runtime.InteropServices._Attribute</span>
|
| </div>
|
| </article>
|
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