📄 jco.poolmanager.html
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#removePool(java.lang.String)">removePool</A></B>(java.lang.String pool_name)</CODE>
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Removes the named pool from the list of pools. </TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#removePoolChangedListener(com.sap.mw.jco.JCO.PoolChangedListener)">removePoolChangedListener</A></B>(<A HREF="../../../../com/sap/mw/jco/JCO.PoolChangedListener.html">JCO.PoolChangedListener</A> listener)</CODE>
<BR>
Unregister a pool changed listener</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#setConnectionTimeout(long)">setConnectionTimeout</A></B>(long connection_timeout)</CODE>
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Sets the default value for the connection timeout in milliseconds. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#setMaxWaitTime(long)">setMaxWaitTime</A></B>(long max_wait_time)</CODE>
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Sets the maximum time to wait in a connection request for a free connection. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#setTimeoutCheckPeriod(long)">setTimeoutCheckPeriod</A></B>(long timeout_check_period)</CODE>
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Sets the default value for the timeout check period in milliseconds. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html">JCO.PoolManager</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#singleton()">singleton</A></B>()</CODE>
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Returns the instance of the pool manager</TD>
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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<B>Method Detail</B></FONT></TD>
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<A NAME="singleton()"><!-- --></A><H3>
singleton</H3>
<PRE>
public static <A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html">JCO.PoolManager</A> <B>singleton</B>()</PRE>
<DL>
<DD>Returns the instance of the pool manager</DL>
<HR>
<A NAME="addPoolChangedListener(com.sap.mw.jco.JCO.PoolChangedListener)"><!-- --></A><H3>
addPoolChangedListener</H3>
<PRE>
public void <B>addPoolChangedListener</B>(<A HREF="../../../../com/sap/mw/jco/JCO.PoolChangedListener.html">JCO.PoolChangedListener</A> listener)</PRE>
<DL>
<DD>Register a pool changed listener<DD><DL>
<DT><B>Parameters:</B><DD><CODE>listener</CODE> - the listener to add</DL>
</DD>
</DL>
<HR>
<A NAME="removePoolChangedListener(com.sap.mw.jco.JCO.PoolChangedListener)"><!-- --></A><H3>
removePoolChangedListener</H3>
<PRE>
public void <B>removePoolChangedListener</B>(<A HREF="../../../../com/sap/mw/jco/JCO.PoolChangedListener.html">JCO.PoolChangedListener</A> listener)</PRE>
<DL>
<DD>Unregister a pool changed listener<DD><DL>
<DT><B>Parameters:</B><DD><CODE>listener</CODE> - the listener to remove</DL>
</DD>
</DL>
<HR>
<A NAME="addPool(java.lang.String, com.sap.mw.jco.JCO.Client, int)"><!-- --></A><H3>
addPool</H3>
<PRE>
public void <B>addPool</B>(java.lang.String pool_name, <A HREF="../../../../com/sap/mw/jco/JCO.Client.html">JCO.Client</A> master, int max_pool_size)</PRE>
<DL>
<DD>Adds a new pool to the pools list<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pool_name</CODE> - the name of the new pool<DD><CODE>master</CODE> - the connection that specifies the parameters for all connections in this pool.<DD><CODE>max_pool_size</CODE> - the max. number of connections that can be opened simultaneously in this pool<DT><B>Throws:</B><DD><CODE><A HREF="../../../../com/sap/mw/jco/JCO.Exception.html">JCO.Exception</A></CODE> - thrown if a pool with the same name already exists.</DL>
</DD>
</DL>
<HR>
<A NAME="getPoolNames()"><!-- --></A><H3>
getPoolNames</H3>
<PRE>
public java.lang.String[] <B>getPoolNames</B>()</PRE>
<DL>
<DD>Returns the array of pool names that are currently under control of the manager<DD><DL>
<DT><B>Returns:</B><DD>a string array of pool names</DL>
</DD>
</DL>
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<A NAME="getPool(java.lang.String)"><!-- --></A><H3>
getPool</H3>
<PRE>
public <A HREF="../../../../com/sap/mw/jco/JCO.Pool.html">JCO.Pool</A> <B>getPool</B>(java.lang.String pool_name)</PRE>
<DL>
<DD>Returns the pool with the specified name or <tt>null</tt> if such a pool does not exist in the pool list<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pool_name</CODE> - the name of the pool to return</DL>
</DD>
</DL>
<HR>
<A NAME="removePool(java.lang.String)"><!-- --></A><H3>
removePool</H3>
<PRE>
public void <B>removePool</B>(java.lang.String pool_name)</PRE>
<DL>
<DD>Removes the named pool from the list of pools. <em>Note: </em>The routine will close all open connections of the specified pool forcefully.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pool_name</CODE> - the name of the pool to remove</DL>
</DD>
</DL>
<HR>
<A NAME="getClient(java.lang.String)"><!-- --></A><H3>
getClient</H3>
<PRE>
public <A HREF="../../../../com/sap/mw/jco/JCO.Client.html">JCO.Client</A> <B>getClient</B>(java.lang.String pool_name)</PRE>
<DL>
<DD>Returns a new client connection from the specified pool.<br> <em>Note:</em> Any client obtained by this method <em>must</em> be released with <tt>JCO.releaseClient()</tt> if not needed anymore. If the pool is exhausted, that is, all clients of the pool are currently allocated by an application, the method will wait for a while and retry. The max. time the routine will wait can be specified by <tt>setMaxWaitTime()</tt>. If the second try to request a client from the pool also fails, the method will throw an exception. <p> <em>Note:</em> To avoid reconnect on connections to the SAP Systems below 4.0A it is necessary to set the <tt>resetOnRelease</tt> property to false and use <tt>JCO.getClient([pool name], false)</tt>. Be careful, if you use this way, if have to be certain, that the application using this pool never invokes functions, that maintain a state on the ABAP server.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pool_name</CODE> - the name of the pool from which to take the connection<DT><B>Returns:</B><DD>the newly created client or <tt>null</tt> in the case when the thread which was waiting for the client has been interrupted or client pool was removed.<DT><B>Throws:</B><DD><CODE><A HREF="../../../../com/sap/mw/jco/JCO.Exception.html">JCO.Exception</A></CODE> - with the error group set to <tt>JCO.Exception.JCO_ERROR_RESOURCE</tt>, if a client could not be allocated, i.e. the client pool is exhausted<DD><CODE><A HREF="../../../../com/sap/mw/jco/JCO.Exception.html">JCO.Exception</A></CODE> - thrown if a client connection could not be established due to wrong logon data, network problems, etc.<DT><B>See Also: </B><DD><A HREF="../../../../com/sap/mw/jco/JCO.html#releaseClient(com.sap.mw.jco.JCO.Client)"><CODE>JCO.releaseClient(com.sap.mw.jco.JCO.Client)</CODE></A>,
<A HREF="../../../../com/sap/mw/jco/JCO.PoolManager.html#setMaxWaitTime(long)"><CODE>setMaxWaitTime(long)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getClient(java.lang.String, boolean)"><!-- --></A><H3>
getClient</H3>
<PRE>
public <A HREF="../../../../com/sap/mw/jco/JCO.Client.html">JCO.Client</A> <B>getClient</B>(java.lang.String pool_name, boolean reset)</PRE>
<DL>
<DD>Returns a new client connection from the specified pool and resets all resources associated with this connection. If the pool is exhausted, that is, all clients of the pool are currently allocated by an application, the method will wait for a while and retry. The max. time the routine will wait can be specified by <tt>setMaxWaitTime()</tt>. If the second try to request a client from the pool also fails, the method will throw an exception.<p> <em>Note:</em> To avoid reconnect on connections to the SAP Systems below 4.0A it is necessary to set the <tt>resetOnRelease</tt> property to false and use <tt>JCO.getClient([pool name], false)</tt>. Be careful, if you use this way, if have to be certain,⌨️ 快捷键说明
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