connectionpool.html
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ConnectionPool
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com.ora.jsp.sql</FONT>
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Class ConnectionPool</H2>
<PRE>
java.lang.Object
|
+--<B>com.ora.jsp.sql.ConnectionPool</B>
</PRE>
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<DL>
<DT>public class <B>ConnectionPool</B><DT>extends java.lang.Object</DL>
<P>
This class implements a connection pool. It's the same as the
ConnectionPool class described in Java Servlet Programming (O'Reilly),
Second Edition, copied with permission from Jason Hunter.
It's used by the DataSourceWrapper class to provide a JDBC 2.0
DataSource interface to the pool.
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>2.0</DD>
<DT><B>Author:</B></DT>
<DD>Jason Hunter, <jhunter@acm.org></DD>
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<CODE>private java.util.Hashtable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#connections">connections</A></B></CODE>
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<CODE>private java.util.Properties</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#props">props</A></B></CODE>
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<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#ConnectionPool(java.util.Properties, int)">ConnectionPool</A></B>(java.util.Properties props,
int initialConnections)</CODE>
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<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#ConnectionPool(java.lang.String, java.lang.String, java.lang.String, java.lang.String, int)">ConnectionPool</A></B>(java.lang.String driverClassName,
java.lang.String dbURL,
java.lang.String user,
java.lang.String password,
int initialConnections)</CODE>
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<CODE> java.sql.Connection</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#getConnection()">getConnection</A></B>()</CODE>
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<CODE>private java.sql.Connection</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#getNewConnection()">getNewConnection</A></B>()</CODE>
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<CODE>private void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#initializePool(java.util.Properties, int)">initializePool</A></B>(java.util.Properties props,
int initialConnections)</CODE>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ora/jsp/sql/ConnectionPool.html#returnConnection(java.sql.Connection)">returnConnection</A></B>(java.sql.Connection returned)</CODE>
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<A NAME="connections"><!-- --></A><H3>
connections</H3>
<PRE>
private java.util.Hashtable <B>connections</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="props"><!-- --></A><H3>
props</H3>
<PRE>
private java.util.Properties <B>props</B></PRE>
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<DL>
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<A NAME="ConnectionPool(java.util.Properties, int)"><!-- --></A><H3>
ConnectionPool</H3>
<PRE>
public <B>ConnectionPool</B>(java.util.Properties props,
int initialConnections)
throws java.sql.SQLException,
java.lang.ClassNotFoundException</PRE>
<DL>
</DL>
<HR>
<A NAME="ConnectionPool(java.lang.String, java.lang.String, java.lang.String, java.lang.String, int)"><!-- --></A><H3>
ConnectionPool</H3>
<PRE>
public <B>ConnectionPool</B>(java.lang.String driverClassName,
java.lang.String dbURL,
java.lang.String user,
java.lang.String password,
int initialConnections)
throws java.sql.SQLException,
java.lang.ClassNotFoundException</PRE>
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<A NAME="getConnection()"><!-- --></A><H3>
getConnection</H3>
<PRE>
public java.sql.Connection <B>getConnection</B>()
throws java.sql.SQLException</PRE>
<DL>
<DD><DL>
<DD><CODE>java.sql.SQLException</CODE></DL>
</DD>
</DL>
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<A NAME="returnConnection(java.sql.Connection)"><!-- --></A><H3>
returnConnection</H3>
<PRE>
public void <B>returnConnection</B>(java.sql.Connection returned)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="initializePool(java.util.Properties, int)"><!-- --></A><H3>
initializePool</H3>
<PRE>
private void <B>initializePool</B>(java.util.Properties props,
int initialConnections)
throws java.sql.SQLException,
java.lang.ClassNotFoundException</PRE>
<DL>
<DD><DL>
<DD><CODE>java.sql.SQLException</CODE>
<DD><CODE>java.lang.ClassNotFoundException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="getNewConnection()"><!-- --></A><H3>
getNewConnection</H3>
<PRE>
private java.sql.Connection <B>getNewConnection</B>()
throws java.sql.SQLException</PRE>
<DL>
<DD><DL>
<DD><CODE>java.sql.SQLException</CODE></DL>
</DD>
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