releases/latest/javadoc/org/apache/geode/distributed/DistributedSystem.html - geode-site - Git at Google

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 <div class="subTitle">org.apache.geode.distributed</div>
 <h2 title="Class DistributedSystem" class="title">Class DistributedSystem</h2>
 </div>
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 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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 <ul class="inheritance">
 <li>org.apache.geode.distributed.DistributedSystem</li>
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 </li>
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 <dt>All Implemented Interfaces:</dt>
 <dd><a href="../../../../org/apache/geode/StatisticsFactory.html" title="interface in org.apache.geode">StatisticsFactory</a>, <a href="../../../../org/apache/geode/StatisticsTypeFactory.html" title="interface in org.apache.geode">StatisticsTypeFactory</a></dd>
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 <pre>public abstract class <span class="typeNameLabel">DistributedSystem</span>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="../../../../org/apache/geode/StatisticsFactory.html" title="interface in org.apache.geode">StatisticsFactory</a></pre>
 <div class="block">A "connection" to a GemFire distributed system. A <code>DistributedSystem</code> is created by
  invoking the <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#connect-java.util.Properties-"><code>connect(java.util.Properties)</code></a> method with a configuration as described
  <a href="#configuration">below</a>. A <code>DistributedSystem</code> is used when calling
  <a href="../../../../org/apache/geode/cache/CacheFactory.html#create--"><code>CacheFactory.create()</code></a>. This class should not be confused with the
  <a href="../../../../org/apache/geode/admin/AdminDistributedSystem.html" title="interface in org.apache.geode.admin"><code>AdminDistributedSystem</code></a> interface that is
  used for administering a distributed system.

  <P>

  When a program connects to the distributed system, a "distribution manager" is started in this VM
  and the other members of the distributed system are located. This discovery is performed by
  contacting "locators" running on a given host and port. All DistributedSystems that are
  configured to use the same locators are part of the same distributed system.

  <P>

  The current version of GemFire only supports creating one <code>DistributedSystem</code> per
  virtual machine. Attempts to connect to multiple distributed systems (that is calling
  <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#connect-java.util.Properties-"><code>connect(java.util.Properties)</code></a> multiple times with different configuration <code>Properties</code>) will result
  in an <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang"><code>IllegalStateException</code></a> being thrown (if <code>connect</code> is invoked multiple
  times with equivalent <code>Properties</code>, then the same instance of
  <code>DistributedSystem</code> will be returned). A common practice is to connect to the
  distributed system and store a reference to the <code>DistributedSystem</code> object in a
  well-known location such as a <code>static</code> variable. This practice provides access to the
  <code>DistributedSystem</code> slightly faster than invoking <code>connect</code> multiple times.
  Note that it is always advisable to <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#disconnect--"><code>disconnect()</code></a> from the distributed system when a
  program will no longer access it. Disconnecting frees up certain resources and allows your
  application to connect to a different distributed system, if desirable.

  <P>

  Users should never subclass this class.</div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 3.0</dd>
 </dl>
 </li>
 </ul>
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 <h3>Field Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
 <caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
 <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>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;org.apache.geode.distributed.internal.InternalDistributedSystem&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#existingSystems">existingSystems</a></span></code>
 <div class="block">The instances of <code>DistributedSystem</code> created in this VM.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#existingSystemsLock">existingSystemsLock</a></span></code>
 <div class="block">This lock must be changed to add or remove a system.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT">PROPERTIES_FILE_DEFAULT</a></span></code>
 <div class="block">The default value of <code>PROPERTIES_FILE_PROPERTY</code> is
  <code>"gemfire.properties"</code>.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY">PROPERTIES_FILE_PROPERTY</a></span></code>
 <div class="block">The <code>PROPERTIES_FILE_PROPERTY</code> is the system property that can be used to specify
  the name of the properties file that the connect method will check for when it looks for a
  properties file.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTY_FILE">PROPERTY_FILE</a></span></code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">As of 9.0, please use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFile--"><code>getPropertiesFile()</code></a> instead.</span></div>
 </div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT">SECURITY_PROPERTIES_FILE_DEFAULT</a></span></code>
 <div class="block">The default value of <code>SECURITY_PROPERTIES_FILE_PROPERTY</code> is
  <code>"gfsecurity.properties"</code>.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY">SECURITY_PROPERTIES_FILE_PROPERTY</a></span></code>
 <div class="block">The <code>SECURITY_PROPERTIES_FILE_PROPERTY</code> is the system property that can be used to
  specify the name of the property file that the connect method will check for when it looks for
  a property file.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTY_FILE">SECURITY_PROPERTY_FILE</a></span></code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">As of 9.0, please use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a> instead.</span></div>
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 <h3>Fields inherited from interface&nbsp;org.apache.geode.<a href="../../../../org/apache/geode/StatisticsTypeFactory.html" title="interface in org.apache.geode">StatisticsTypeFactory</a></h3>
 <code><a href="../../../../org/apache/geode/StatisticsTypeFactory.html#MAX_DESCRIPTORS_PER_TYPE">MAX_DESCRIPTORS_PER_TYPE</a></code></li>
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 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier</th>
 <th class="colLast" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected </code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#DistributedSystem--">DistributedSystem</a></span>()</code>
 <div class="block">Creates a new instance of <code>DistributedSystem</code>.</div>
 </td>
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 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>protected static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#addSystem-org.apache.geode.distributed.internal.InternalDistributedSystem-">addSystem</a></span>(org.apache.geode.distributed.internal.InternalDistributedSystem&nbsp;newSystem)</code>&nbsp;</td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#connect-java.util.Properties-">connect</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a>&nbsp;config)</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">as of 6.5 use <a href="../../../../org/apache/geode/cache/CacheFactory.html#create--"><code>CacheFactory.create()</code></a> or <a href="../../../../org/apache/geode/cache/client/ClientCacheFactory.html#create--"><code>ClientCacheFactory.create()</code></a>
              instead.</span></div>
 </div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>protected static <a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#connectForAdmin-java.util.Properties-">connectForAdmin</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a>&nbsp;props)</code>
 <div class="block">Returns a connection to the distributed system that is appropriate for administration.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>abstract void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#disconnect--">disconnect</a></span>()</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">as of 6.5 use <a href="../../../../org/apache/geode/cache/Cache.html#close-boolean-"><code>Cache.close(boolean)</code></a> or <a href="../../../../org/apache/geode/cache/client/ClientCache.html#close-boolean-"><code>ClientCache.close(boolean)</code></a> instead.</span></div>
 </div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>abstract <a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#findDistributedMember-java.lang.String-">findDistributedMember</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</code>
 <div class="block">Find the distributed member with the given name</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#findDistributedMembers-java.net.InetAddress-">findDistributedMembers</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/net/InetAddress.html?is-external=true" title="class or interface in java.net">InetAddress</a>&nbsp;address)</code>
 <div class="block">Find the set of distributed members running on a given address</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getAllOtherMembers--">getAllOtherMembers</a></span>()</code>
 <div class="block">Returns a set of all the other members in this distributed system.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>abstract <a href="../../../../org/apache/geode/CancelCriterion.html" title="class in org.apache.geode">CancelCriterion</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getCancelCriterion--">getCancelCriterion</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>protected static <a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getConnection-java.util.Properties-">getConnection</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a>&nbsp;config)</code>
 <div class="block">Returns an existing connection to the distributed system described by the given properties.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>abstract <a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getDistributedMember--">getDistributedMember</a></span>()</code>
 <div class="block">Returns the <a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed"><code>DistributedMember</code></a> that identifies this connection to the distributed
  system.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getGroupMembers-java.lang.String-">getGroupMembers</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;group)</code>
 <div class="block">Returns a set of all the members in the given group.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>abstract long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getId--">getId</a></span>()</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getDistributedMember--"><code>getDistributedMember()</code></a> provides an identity for this connection that is
              unique across the entire distributed system.</span></div>
 </div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>abstract <a href="../../../../org/apache/geode/LogWriter.html" title="interface in org.apache.geode">LogWriter</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getLogWriter--">getLogWriter</a></span>()</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getMemberId--">getMemberId</a></span>()</code>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
 <div class="block"><span class="deprecationComment">as of GemFire 5.0, use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getDistributedMember--"><code>getDistributedMember()</code></a> instead</span></div>
 </div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getName--">getName</a></span>()</code>
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 <tr id="i15" class="rowColor">
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 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
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 <tr id="i17" class="rowColor">
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 <tr id="i18" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a></code></td>
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 <tr id="i21" class="rowColor">
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 <tr id="i22" class="altColor">
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 <td class="colFirst"><code>abstract boolean</code></td>
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 <tr id="i27" class="rowColor">
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 <tr id="i28" class="altColor">
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 <tr id="i29" class="rowColor">
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 <tr id="i30" class="altColor">
 <td class="colFirst"><code>abstract void</code></td>
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 <tr id="i31" class="rowColor">
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 <div class="block">The instances of <code>DistributedSystem</code> created in this VM. Presently only one connect
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 <pre>protected static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> existingSystemsLock</pre>
 <div class="block">This lock must be changed to add or remove a system. It is notified when a system is removed.</div>
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 <div class="block">The <code>PROPERTIES_FILE_PROPERTY</code> is the system property that can be used to specify
  the name of the properties file that the connect method will check for when it looks for a
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  <li>the home directory
  <li>the class path
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 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT"><code>PROPERTIES_FILE_DEFAULT</code></a>,
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 <div class="block">The default value of <code>PROPERTIES_FILE_PROPERTY</code> is
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 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
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 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFile--"><code>getPropertiesFile()</code></a>,
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 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">As of 9.0, please use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFile--"><code>getPropertiesFile()</code></a> instead.</span></div>
 <div class="block">The <code>PROPERTY_FILE</code> is the name of the properties file that the connect method will
  check for when it looks for a properties file. The file will be searched for, in order, in the
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  <li>the current directory
  <li>the home directory
  <li>the class path
  </ol>
  Only the first file found will be used.
  <p>
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  "gemfirePropertyFile" system property is set then its value is the value of PROPERTY_FILE. If
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 <dl>
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 <dt><span class="seeLabel">See Also:</span></dt>
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 <pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> SECURITY_PROPERTIES_FILE_PROPERTY</pre>
 <div class="block">The <code>SECURITY_PROPERTIES_FILE_PROPERTY</code> is the system property that can be used to
  specify the name of the property file that the connect method will check for when it looks for
  a property file. Unless the value specifies the fully qualified path to the file, the file will
  be searched for, in order, in the following directories:
  <ol>
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  <li>the home directory
  <li>the class path
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  Only the first file found will be used.
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 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT"><code>SECURITY_PROPERTIES_FILE_DEFAULT</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a>,
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 <pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> SECURITY_PROPERTIES_FILE_DEFAULT</pre>
 <div class="block">The default value of <code>SECURITY_PROPERTIES_FILE_PROPERTY</code> is
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 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a>,
 <a href="../../../../constant-values.html#org.apache.geode.distributed.DistributedSystem.SECURITY_PROPERTIES_FILE_DEFAULT">Constant Field Values</a></dd>
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 <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
 public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> SECURITY_PROPERTY_FILE</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">As of 9.0, please use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a> instead.</span></div>
 <div class="block">The <code>SECURITY_PROPERTY_FILE</code> is the name of the property file that the connect
  method will check for when it looks for a security property file. The file will be searched
  for, in order, in the following directories:
  <ol>
  <li>the current directory
  <li>the home directory
  <li>the class path
  </ol>
  Only the first file found will be used.
  <p>
  The default value of SECURITY_PROPERTY_FILE is <code>"gfsecurity.properties"</code>. However if
  the "gemfireSecurityPropertyFile" system property is set then its value is the value of
  SECURITY_PROPERTY_FILE. If this value is a relative file system path then the above search is
  done. If it is an absolute file system path then that file must exist; no search for it is
  done.</div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 6.6.2</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a></dd>
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 <div class="block">Creates a new instance of <code>DistributedSystem</code>. This constructor is protected so that
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 public static&nbsp;<a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a>&nbsp;connect(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a>&nbsp;config)</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">as of 6.5 use <a href="../../../../org/apache/geode/cache/CacheFactory.html#create--"><code>CacheFactory.create()</code></a> or <a href="../../../../org/apache/geode/cache/client/ClientCacheFactory.html#create--"><code>ClientCacheFactory.create()</code></a>
              instead.</span></div>
 <div class="block">Connects to a GemFire distributed system with a configuration supplemented by the given
  properties. See <a href="../../../../org/apache/geode/distributed/ConfigurationProperties.html" title="interface in org.apache.geode.distributed">ConfigurationProperties</a> for available GemFire properties and their
  meanings.
  <P>
  The actual configuration attribute values used to connect comes from the following sources:
  <OL>
  <LI>System properties. If a system property named "<code>gemfire.</code><em>propertyName</em>"
  is defined and its value is not an empty string then its value will be used for the named
  configuration attribute.

  <LI>Code properties. Otherwise if a property is defined in the <code>config</code> parameter
  object and its value is not an empty string then its value will be used for that configuration
  attribute.
  <LI>File properties. Otherwise if a property is defined in a configuration property file found
  by this application and its value is not an empty string then its value will be used for that
  configuration attribute. A configuration property file may not exist. See the following section
  for how configuration property files are found.
  <LI>Defaults. Otherwise a default value is used.
  </OL>
  <P>
  The name of the property file can be specified using the "gemfirePropertyFile" system property.
  If the system property is set to a relative file name then it is searched for in following
  locations. If the system property is set to an absolute file name then that file is used as the
  property file. If the system property is not set, then the name of the property file defaults
  to "gemfire.properties". The configuration file is searched for in the following locations:

  <OL>
  <LI>Current directory (directory in which the VM was launched)</LI>
  <LI>User's home directory</LI>
  <LI>Class path (loaded as a <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassLoader.html?is-external=true#getResource-java.lang.String-" title="class or interface in java.lang">system resource</a>)</LI>
  </OL>

  If the configuration file cannot be located, then the property will have its default value as
  described <a href="#configuration">above</a>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>config</code> - The <a href="#configuration">configuration properties</a> used when connecting to
         the distributed system</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a connection to the distributed system that is appropriate for administration</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If <code>config</code> contains an unknown configuration
          property or a configuration property does not have an allowed value. Note that the
          values of boolean properties are parsed using
          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Boolean.html?is-external=true#valueOf-java.lang.String-" title="class or interface in java.lang"><code>Boolean.valueOf(java.lang.String)</code></a>. Therefore all values other than "true"
          values will be considered <code>false</code> -- an exception will not be thrown.</dd>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - If a <code>DistributedSystem</code> with a different
          configuration has already been created in this VM or if this VM is
          <a href="../../../../org/apache/geode/admin/AdminDistributedSystem.html" title="interface in org.apache.geode.admin"><code>administering</code></a> a distributed
          system.</dd>
 <dd><code><a href="../../../../org/apache/geode/GemFireIOException.html" title="class in org.apache.geode">GemFireIOException</a></code> - Problems while reading configuration properties
          file or while opening the log file.</dd>
 <dd><code><a href="../../../../org/apache/geode/GemFireConfigException.html" title="class in org.apache.geode">GemFireConfigException</a></code> - The distribution transport is not configured
          correctly</dd>
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 <div class="block">Sets the calling thread's socket policy. This value will override that default set by the
  <code>conserve-sockets</code> configuration property.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conserveSockets</code> - If <code>true</code> then calling thread will share socket connections
         with other threads. If <code>false</code> then calling thread will have its own sockets.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <div class="block">Frees up any socket resources owned by the calling thread.</div>
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 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <pre>protected static&nbsp;<a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a>&nbsp;getConnection(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html?is-external=true" title="class or interface in java.util">Properties</a>&nbsp;config)</pre>
 <div class="block">Returns an existing connection to the distributed system described by the given properties.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>config</code> - the properties used when creating a connection to the distributed system</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a connection to the distributed system that is appropriate for administration</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 4.0</dd>
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 <div class="block">Returns a connection to the distributed system that is appropriate for administration. This
  method is for internal use only by the admin API.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>props</code> - the properties used when creating a connection to the distributed system</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a connection to the distributed system that is appropriate for administration</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 4.0</dd>
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 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>adminOnly</code> - whether this VM is dedicated to administration</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
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 public abstract&nbsp;<a href="../../../../org/apache/geode/LogWriter.html" title="interface in org.apache.geode">LogWriter</a>&nbsp;getLogWriter()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
 <div class="block">Returns the <code>LogWriter</code> used for logging information. See
  <A href="#logFile">logFile</A>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the <code>LogWriter</code> used for logging information</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - This VM has <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#disconnect--">disconnected</a> from the
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 public abstract&nbsp;<a href="../../../../org/apache/geode/LogWriter.html" title="interface in org.apache.geode">LogWriter</a>&nbsp;getSecurityLogWriter()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
 <div class="block">Returns the <code>LogWriter</code> used for logging security related information. See
  <A href="#logFile">logFile</A>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the <code>LogWriter</code> used for logging security related information</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - This VM has <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#disconnect--">disconnected</a> from the
          distributed system.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 5.5</dd>
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 <div class="block">Returns the configuration properties.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the configuration Properties</dd>
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 <div class="block">Returns the security specific configuration properties.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the configuration Properties</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 5.5</dd>
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 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the cancel criterion for this system</dd>
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 public abstract&nbsp;void&nbsp;disconnect()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">as of 6.5 use <a href="../../../../org/apache/geode/cache/Cache.html#close-boolean-"><code>Cache.close(boolean)</code></a> or <a href="../../../../org/apache/geode/cache/client/ClientCache.html#close-boolean-"><code>ClientCache.close(boolean)</code></a> instead.</span></div>
 <div class="block">Disconnects from this distributed system. This operation will close the distribution manager
  and render the <a href="../../../../org/apache/geode/cache/Cache.html" title="interface in org.apache.geode.cache"><code>Cache</code></a> and all distributed collections
  obtained from this distributed system inoperable. After a disconnect has completed, a VM may
  connect to another distributed system.

  <P>

  Attempts to access a distributed system after a VM has disconnected from it will result in an
  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang"><code>IllegalStateException</code></a> being thrown.</div>
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 <div class="block">Returns whether or not this <code>DistributedSystem</code> is connected to the distributed
  system.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>whether this <code>DistributedSystem</code> is connected to the distributed system</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#disconnect--"><code>disconnect()</code></a></dd>
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 public abstract&nbsp;long&nbsp;getId()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment"><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getDistributedMember--"><code>getDistributedMember()</code></a> provides an identity for this connection that is
              unique across the entire distributed system.</span></div>
 <div class="block">Returns the id of this connection to the distributed system.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the id of this connection to the distributed system</dd>
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 public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getMemberId()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">as of GemFire 5.0, use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getDistributedMember--"><code>getDistributedMember()</code></a> instead</span></div>
 <div class="block">Returns a string that uniquely identifies this connection to the distributed system.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
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 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/admin/SystemMembershipEvent.html#getMemberId--"><code>SystemMembershipEvent.getMemberId()</code></a></dd>
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 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the member that represents this distributed system connection.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <div class="block">Returns a set of all the other members in this distributed system.</div>
 <dl>
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 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <div class="block">Returns a set of all the members in the given group. Members join a group by setting the
  "groups" gemfire property.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>group</code> - the group to which the distributed members to find belong</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>returns a set of all the member in a group.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <div class="block">Find the set of distributed members running on a given address</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>address</code> - the address of the distributed members to find</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a set of all DistributedMembers that have any interfaces that match the given IP
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 <dt><span class="simpleTagLabel">Since:</span></dt>
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 <pre>public abstract&nbsp;<a href="../../../../org/apache/geode/distributed/DistributedMember.html" title="interface in org.apache.geode.distributed">DistributedMember</a>&nbsp;findDistributedMember(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name)</pre>
 <div class="block">Find the distributed member with the given name</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>name</code> - the name of the distributed member to find</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the distributed member that has the given name, or null if no member is currently
          running with the given name.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 7.1</dd>
 </dl>
 </li>
 </ul>
 <a name="getName--">
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 <h4>getName</h4>
 <pre>public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getName()</pre>
 <div class="block">Returns the <a href="#name">name</a> of this connection to the distributed system.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the name of this connection to the distributed system</dd>
 </dl>
 </li>
 </ul>
 <a name="getPropertiesFile--">
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 <h4>getPropertiesFile</h4>
 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getPropertiesFile()</pre>
 <div class="block">Returns the current value of <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a> system property if set or the
  default value <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT"><code>PROPERTIES_FILE_DEFAULT</code></a>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current value of <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a> system property if set or the
          default value <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT"><code>PROPERTIES_FILE_DEFAULT</code></a></dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT"><code>PROPERTIES_FILE_DEFAULT</code></a></dd>
 </dl>
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 </ul>
 <a name="getSecurityPropertiesFile--">
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 <h4>getSecurityPropertiesFile</h4>
 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getSecurityPropertiesFile()</pre>
 <div class="block">Returns the current value of <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a> system property if set
  or the default value <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT"><code>SECURITY_PROPERTIES_FILE_DEFAULT</code></a>.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the current value of <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a> system property if set
          or the default value <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT"><code>SECURITY_PROPERTIES_FILE_DEFAULT</code></a></dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT"><code>SECURITY_PROPERTIES_FILE_DEFAULT</code></a></dd>
 </dl>
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 <h4>getPropertiesFileURL</h4>
 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a>&nbsp;getPropertiesFileURL()</pre>
 <div class="block">Gets an <code>URL</code> for the properties file, if one can be found, that the connect method
  will use as its properties file.
  <p>
  See <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a> for information on the name of the properties file and
  what locations it will be looked for in.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a <code>URL</code> that names the GemFire property file. Null is returned if no
          property file was found.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>Geode 1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_DEFAULT"><code>PROPERTIES_FILE_DEFAULT</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFile--"><code>getPropertiesFile()</code></a></dd>
 </dl>
 </li>
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 <a name="getPropertyFileURL--">
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 <h4>getPropertyFileURL</h4>
 <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
 public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a>&nbsp;getPropertyFileURL()</pre>
 <div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">As of 9.0, please use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFileURL--"><code>getPropertiesFileURL()</code></a></span></div>
 <div class="block">Gets an <code>URL</code> for the property file, if one can be found, that the connect method
  will use as its property file.
  <p>
  See <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#PROPERTIES_FILE_PROPERTY"><code>PROPERTIES_FILE_PROPERTY</code></a> for information on the name of the property file and what
  locations it will be looked for in.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a <code>URL</code> that names the GemFire property file. Null is returned if no
          property file was found.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 5.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getPropertiesFileURL--"><code>getPropertiesFileURL()</code></a></dd>
 </dl>
 </li>
 </ul>
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 <h4>getSecurityPropertiesFileURL</h4>
 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a>&nbsp;getSecurityPropertiesFileURL()</pre>
 <div class="block">Gets an <code>URL</code> for the security properties file, if one can be found, that the
  connect method will use as its properties file.
  <p>
  See <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a> for information on the name of the properties
  file and what locations it will be looked for in.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a <code>URL</code> that names the GemFire security properties file. Null is returned if
          no properties file was found.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>GemFire 6.6.2</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_PROPERTY"><code>SECURITY_PROPERTIES_FILE_PROPERTY</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#SECURITY_PROPERTIES_FILE_DEFAULT"><code>SECURITY_PROPERTIES_FILE_DEFAULT</code></a>,
 <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getSecurityPropertiesFile--"><code>getSecurityPropertiesFile()</code></a></dd>
 </dl>
 </li>
 </ul>
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 <h4>isReconnecting</h4>
 <pre>public abstract&nbsp;boolean&nbsp;isReconnecting()</pre>
 <div class="block">Test to see whether the DistributedSystem is in the process of reconnecting and recreating the
  cache after it has been removed from the system by other members or has shut down due to
  missing Roles and is reconnecting.
  <p>
  This will also return true if the DistributedSystem has finished reconnecting. When reconnect
  has completed you can use <a href="../../../../org/apache/geode/distributed/DistributedSystem.html#getReconnectedSystem--"><code>getReconnectedSystem()</code></a> to retrieve the new
  distributed system.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the DistributedSystem is attempting to reconnect or has finished reconnecting</dd>
 </dl>
 </li>
 </ul>
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 <h4>waitUntilReconnected</h4>
 <pre>public abstract&nbsp;boolean&nbsp;waitUntilReconnected(long&nbsp;time,
                                              <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a>&nbsp;units)
                                       throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre>
 <div class="block">Wait for the DistributedSystem to finish reconnecting to the system and recreate the cache.
  This may throw a DistributedSystemDisconnectedException if reconnect fails. The exception
  will detail what went wrong.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>time</code> - amount of time to wait, or -1 to wait forever</dd>
 <dd><code>units</code> - the units associated with the time</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the system was reconnected</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code> - if the thread is interrupted while waiting</dd>
 </dl>
 </li>
 </ul>
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 <h4>stopReconnecting</h4>
 <pre>public abstract&nbsp;void&nbsp;stopReconnecting()</pre>
 <div class="block">Force the DistributedSystem to stop reconnecting. If the DistributedSystem is currently
  connected this will disconnect it and close the cache.</div>
 </li>
 </ul>
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 <h4>getReconnectedSystem</h4>
 <pre>public abstract&nbsp;<a href="../../../../org/apache/geode/distributed/DistributedSystem.html" title="class in org.apache.geode.distributed">DistributedSystem</a>&nbsp;getReconnectedSystem()</pre>
 <div class="block">Returns the new DistributedSystem if there was an auto-reconnect</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the new DistributedSystem if there was an auto-reconnect</dd>
 </dl>
 </li>
 </ul>
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