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Binding
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<li><h2>Interfaces</h2>
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<li><h2>Annotations</h2>
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<li class="api apilevel-Guice_1.0"><a href="../../../com/google/inject/BindingAnnotation.html">BindingAnnotation</a></li>
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<div class="g-unit" id="doc-content">
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<div class="sum-details-links">
Summary:
<a href="#pubmethods">Methods</a>
&#124; <a href="#inhmethods">Inherited Methods</a>
&#124; <a href="#" onclick="return toggleAllClassInherited()" id="toggleAllClassInherited">[Expand All]</a>
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Since: <a href="../../../guide/appendix/api-levels.html#levelGuice_1.0">API Level Guice_1.0</a>
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<!-- ======== START OF CLASS DATA ======== -->
<div id="jd-header">
public
interface
<h1>Binding</h1>
implements
<a href="../../../com/google/inject/spi/Element.html">Element</a>
</div><!-- end header -->
<div id="naMessage"></div>
<div id="jd-content" class="api apilevel-Guice_1.0">
<table class="jd-inheritance-table">
<tr>
<td colspan="1" class="jd-inheritance-class-cell">com.google.inject.Binding&lt;T&gt;</td>
</tr>
</table>
<table class="jd-sumtable jd-sumtable-subclasses"><tr><td colspan="12" style="border:none;margin:0;padding:0;">
<a href="#" onclick="return toggleInherited(this, null)" id="subclasses-indirect" class="jd-expando-trigger closed"
><img id="subclasses-indirect-trigger"
src="../../../../javadoc/assets/images/triangle-closed.png"
class="jd-expando-trigger-img" /></a>Known Indirect Subclasses
<div id="subclasses-indirect">
<div id="subclasses-indirect-list"
class="jd-inheritedlinks"
>
<a href="../../../com/google/inject/spi/ConstructorBinding.html">ConstructorBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/ConvertedConstantBinding.html">ConvertedConstantBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/ExposedBinding.html">ExposedBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/InstanceBinding.html">InstanceBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/LinkedKeyBinding.html">LinkedKeyBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/ProviderBinding.html">ProviderBinding</a>&lt;T&nbsp;extends&nbsp;<a href="../../../com/google/inject/Provider.html">Provider</a>&lt;?&gt;&gt;,
<a href="../../../com/google/inject/spi/ProviderInstanceBinding.html">ProviderInstanceBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/ProviderKeyBinding.html">ProviderKeyBinding</a>&lt;T&gt;,
<a href="../../../com/google/inject/spi/UntargettedBinding.html">UntargettedBinding</a>&lt;T&gt;
</div>
<div id="subclasses-indirect-summary"
style="display: none;"
>
<table class="jd-sumtable-expando">
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ConstructorBinding.html">ConstructorBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to the constructor of a concrete clss.&nbsp;</td>
</tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ConvertedConstantBinding.html">ConvertedConstantBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding created from converting a bound instance to a new type.&nbsp;</td>
</tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ExposedBinding.html">ExposedBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a key exposed from an enclosed private environment.&nbsp;</td>
</tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/InstanceBinding.html">InstanceBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a single instance.&nbsp;</td>
</tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/LinkedKeyBinding.html">LinkedKeyBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a linked key.&nbsp;</td>
</tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ProviderBinding.html">ProviderBinding</a>&lt;T&nbsp;extends&nbsp;<a href="../../../com/google/inject/Provider.html">Provider</a>&lt;?&gt;&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a <code><a href="../../../com/google/inject/Provider.html">Provider</a></code> that delegates to the binding for the provided type.&nbsp;</td>
</tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ProviderInstanceBinding.html">ProviderInstanceBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a provider instance.&nbsp;</td>
</tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/ProviderKeyBinding.html">ProviderKeyBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">A binding to a provider key.&nbsp;</td>
</tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-linkcol"><a href="../../../com/google/inject/spi/UntargettedBinding.html">UntargettedBinding</a>&lt;T&gt;</td>
<td class="jd-descrcol" width="100%">An untargetted binding.&nbsp;</td>
</tr>
</table>
</div>
</div>
</td></tr></table>
<div class="jd-descr">
<h2>Class Overview</h2>
<p>A mapping from a key (type and optional annotation) to the strategy for getting instances of the
type. This interface is part of the introspection API and is intended primarily for use by
tools.
<p>Bindings are created in several ways:
<ul>
<li>Explicitly in a module, via <code>bind()</code> and <code>bindConstant()</code>
statements:
<pre>
bind(Service.class).annotatedWith(Red.class).to(ServiceImpl.class);
bindConstant().annotatedWith(ServerHost.class).to(args[0]);</pre></li>
<li>Implicitly by the Injector by following a type's <code><a href="../../../com/google/inject/ImplementedBy.html">pointer</a></code> <code><a href="../../../com/google/inject/ProvidedBy.html">annotations</a></code> or by using its <code><a href="../../../com/google/inject/Inject.html">annotated</a></code> or
default constructor.</li>
<li>By converting a bound instance to a different type.</li>
<li>For <code><a href="../../../com/google/inject/Provider.html">providers</a></code>, by delegating to the binding for the provided type.</li>
</ul>
<p>They exist on both modules and on injectors, and their behaviour is different for each:
<ul>
<li><strong>Module bindings</strong> are incomplete and cannot be used to provide instances.
This is because the applicable scopes and interceptors may not be known until an injector
is created. From a tool's perspective, module bindings are like the injector's source
code. They can be inspected or rewritten, but this analysis must be done statically.</li>
<li><strong>Injector bindings</strong> are complete and valid and can be used to provide
instances. From a tools' perspective, injector bindings are like reflection for an
injector. They have full runtime information, including the complete graph of injections
necessary to satisfy a binding.</li>
</ul></p>
</div><!-- jd-descr -->
<div class="jd-descr">
<h2>Summary</h2>
<!-- ========== METHOD SUMMARY =========== -->
<table id="pubmethods" class="jd-sumtable"><tr><th colspan="12">Public Methods</th></tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-typecol"><nobr>
abstract
&lt;V&gt;
V</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/Binding.html#acceptScopingVisitor(com.google.inject.spi.BindingScopingVisitor<V>)">acceptScopingVisitor</a></span>(<a href="../../../com/google/inject/spi/BindingScopingVisitor.html">BindingScopingVisitor</a>&lt;V&gt; visitor)</nobr>
<div class="jd-descrdiv">Accepts a scoping visitor.</div>
</td></tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-typecol"><nobr>
abstract
&lt;V&gt;
V</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/Binding.html#acceptTargetVisitor(com.google.inject.spi.BindingTargetVisitor<? super T, V>)">acceptTargetVisitor</a></span>(<a href="../../../com/google/inject/spi/BindingTargetVisitor.html">BindingTargetVisitor</a>&lt;?&nbsp;super&nbsp;T,&nbsp;V&gt; visitor)</nobr>
<div class="jd-descrdiv">Accepts a target visitor.</div>
</td></tr>
<tr class="alt-color api apilevel-Guice_1.0" >
<td class="jd-typecol"><nobr>
abstract
<a href="../../../com/google/inject/Key.html">Key</a>&lt;T&gt;</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/Binding.html#getKey()">getKey</a></span>()</nobr>
<div class="jd-descrdiv">Returns the key for this binding.</div>
</td></tr>
<tr class=" api apilevel-Guice_1.0" >
<td class="jd-typecol"><nobr>
abstract
<a href="../../../com/google/inject/Provider.html">Provider</a>&lt;T&gt;</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/Binding.html#getProvider()">getProvider</a></span>()</nobr>
<div class="jd-descrdiv">Returns the scoped provider guice uses to fulfill requests for this
binding.</div>
</td></tr>
</table>
<!-- ========== METHOD SUMMARY =========== -->
<table id="inhmethods" class="jd-sumtable"><tr><th>
<a href="#" class="toggle-all" onclick="return toggleAllInherited(this, null)">[Expand]</a>
<div style="clear:left;">Inherited Methods</div></th></tr>
<tr class="api apilevel-" >
<td colspan="12">
<a href="#" onclick="return toggleInherited(this, null)" id="inherited-methods-com.google.inject.spi.Element" class="jd-expando-trigger closed"
><img id="inherited-methods-com.google.inject.spi.Element-trigger"
src="../../../../javadoc/assets/images/triangle-closed.png"
class="jd-expando-trigger-img" /></a>
From interface
<a href="../../../com/google/inject/spi/Element.html">com.google.inject.spi.Element</a>
<div id="inherited-methods-com.google.inject.spi.Element">
<div id="inherited-methods-com.google.inject.spi.Element-list"
class="jd-inheritedlinks">
</div>
<div id="inherited-methods-com.google.inject.spi.Element-summary" style="display: none;">
<table class="jd-sumtable-expando">
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-typecol"><nobr>
abstract
&lt;T&gt;
T</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/spi/Element.html#acceptVisitor(com.google.inject.spi.ElementVisitor<T>)">acceptVisitor</a></span>(<a href="../../../com/google/inject/spi/ElementVisitor.html">ElementVisitor</a>&lt;T&gt; visitor)</nobr>
<div class="jd-descrdiv">Accepts an element visitor.</div>
</td></tr>
<tr class=" api apilevel-Guice_2.0" >
<td class="jd-typecol"><nobr>
abstract
void</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/spi/Element.html#applyTo(com.google.inject.Binder)">applyTo</a></span>(<a href="../../../com/google/inject/Binder.html">Binder</a> binder)</nobr>
<div class="jd-descrdiv">Writes this module element to the given binder (optional operation).</div>
</td></tr>
<tr class="alt-color api apilevel-Guice_2.0" >
<td class="jd-typecol"><nobr>
abstract
Object</nobr>
</td>
<td class="jd-linkcol" width="100%"><nobr>
<span class="sympad"><a href="../../../com/google/inject/spi/Element.html#getSource()">getSource</a></span>()</nobr>
<div class="jd-descrdiv">Returns an arbitrary object containing information about the "place" where this element was
configured.</div>
</td></tr>
</table>
</div>
</div>
</td></tr>
</table>
</div><!-- jd-descr (summary) -->
<!-- Details -->
<!-- XML Attributes -->
<!-- Enum Values -->
<!-- Constants -->
<!-- Fields -->
<!-- Public ctors -->
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<!-- Protected ctors -->
<!-- ========= METHOD DETAIL ======== -->
<!-- Public methdos -->
<h2>Public Methods</h2>
<A NAME="acceptScopingVisitor(com.google.inject.spi.BindingScopingVisitor<V>)"></A>
<div class="jd-details api apilevel-Guice_2.0">
<h4 class="jd-details-title">
<span class="normal">
public
abstract
V
</span>
<span class="sympad">acceptScopingVisitor</span>
<span class="normal">(<a href="../../../com/google/inject/spi/BindingScopingVisitor.html">BindingScopingVisitor</a>&lt;V&gt; visitor)</span>
</h4>
<div class="api-level">
<div>
Since: <a href="../../../guide/appendix/api-levels.html#levelGuice_2.0">API Level Guice_2.0</a>
</div>
</div>
<div class="jd-details-descr">
<div class="jd-tagdata jd-tagdescr"><p>Accepts a scoping visitor. Invokes the visitor method specific to this binding's scoping.</p></div>
<div class="jd-tagdata">
<h5 class="jd-tagtitle">Parameters</h5>
<table class="jd-tagtable">
<tr>
<th>visitor</td>
<td>to call back on</td>
</tr>
</table>
</div>
</div>
</div>
<A NAME="acceptTargetVisitor(com.google.inject.spi.BindingTargetVisitor<? super T, V>)"></A>
<div class="jd-details api apilevel-Guice_2.0">
<h4 class="jd-details-title">
<span class="normal">
public
abstract
V
</span>
<span class="sympad">acceptTargetVisitor</span>
<span class="normal">(<a href="../../../com/google/inject/spi/BindingTargetVisitor.html">BindingTargetVisitor</a>&lt;?&nbsp;super&nbsp;T,&nbsp;V&gt; visitor)</span>
</h4>
<div class="api-level">
<div>
Since: <a href="../../../guide/appendix/api-levels.html#levelGuice_2.0">API Level Guice_2.0</a>
</div>
</div>
<div class="jd-details-descr">
<div class="jd-tagdata jd-tagdescr"><p>Accepts a target visitor. Invokes the visitor method specific to this binding's target.</p></div>
<div class="jd-tagdata">
<h5 class="jd-tagtitle">Parameters</h5>
<table class="jd-tagtable">
<tr>
<th>visitor</td>
<td>to call back on</td>
</tr>
</table>
</div>
</div>
</div>
<A NAME="getKey()"></A>
<div class="jd-details api apilevel-Guice_1.0">
<h4 class="jd-details-title">
<span class="normal">
public
abstract
<a href="../../../com/google/inject/Key.html">Key</a>&lt;T&gt;
</span>
<span class="sympad">getKey</span>
<span class="normal">()</span>
</h4>
<div class="api-level">
<div>
Since: <a href="../../../guide/appendix/api-levels.html#levelGuice_1.0">API Level Guice_1.0</a>
</div>
</div>
<div class="jd-details-descr">
<div class="jd-tagdata jd-tagdescr"><p>Returns the key for this binding.
</p></div>
</div>
</div>
<A NAME="getProvider()"></A>
<div class="jd-details api apilevel-Guice_1.0">
<h4 class="jd-details-title">
<span class="normal">
public
abstract
<a href="../../../com/google/inject/Provider.html">Provider</a>&lt;T&gt;
</span>
<span class="sympad">getProvider</span>
<span class="normal">()</span>
</h4>
<div class="api-level">
<div>
Since: <a href="../../../guide/appendix/api-levels.html#levelGuice_1.0">API Level Guice_1.0</a>
</div>
</div>
<div class="jd-details-descr">
<div class="jd-tagdata jd-tagdescr"><p>Returns the scoped provider guice uses to fulfill requests for this
binding.</p></div>
<div class="jd-tagdata">
<h5 class="jd-tagtitle">Throws</h5>
<table class="jd-tagtable">
<tr>
<th>UnsupportedOperationException</td>
<td>when invoked on a <code><a href="../../../com/google/inject/Binding.html">Binding</a></code>
created via <code><a href="../../../com/google/inject/spi/Elements.html#getElements(com.google.inject.Module...)">getElements(Module...)</a></code>. This
method is only supported on <code><a href="../../../com/google/inject/Binding.html">Binding</a></code>s returned from an injector.
</td>
</tr>
</table>
</div>
</div>
</div>
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