simpledatasource.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

<DL>
<DD>Sets the log writer. The default implementation delegates to the <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/DriverManager.html" title="class or interface in java.sql"><CODE>DriverManager</CODE></A>,
 which have a system-wide effect.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html#setLogWriter(java.io.PrintWriter)" title="class or interface in javax.sql">setLogWriter</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html" title="class or interface in javax.sql">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getLoginTimeout()"><!-- --></A><H3>
getLoginTimeout</H3>
<PRE>
public int <B>getLoginTimeout</B>()
                    throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></PRE>
<DL>
<DD>Gets the maximum time in seconds that this data source can wait while attempting to
 connect to a database.  The default implementation returns zero, which means that the
 timeout is the default system timeout .
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html#getLoginTimeout()" title="class or interface in javax.sql">getLoginTimeout</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html" title="class or interface in javax.sql">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="setLoginTimeout(int)"><!-- --></A><H3>
setLoginTimeout</H3>
<PRE>
public void <B>setLoginTimeout</B>(int&nbsp;seconds)
                     throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></PRE>
<DL>
<DD>Sets the maximum time in seconds that this data source will wait while attempting to
 connect to a database. The default implementation does nothing.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html#setLoginTimeout(int)" title="class or interface in javax.sql">setLoginTimeout</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html" title="class or interface in javax.sql">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getPriority()"><!-- --></A><H3>
getPriority</H3>
<PRE>
public int <B>getPriority</B>()</PRE>
<DL>
<DD>Returns the priority for this data source. The default implementation returns
 <A HREF="../../../../../org/geotools/referencing/factory/epsg/DataSource.html#NORMAL_PRIORITY"><CODE>NORMAL_PRIORITY</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/referencing/factory/epsg/DataSource.html#getPriority()">getPriority</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/referencing/factory/epsg/DataSource.html" title="interface in org.geotools.referencing.factory.epsg">DataSource</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getConnection()"><!-- --></A><H3>
getConnection</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/Connection.html" title="class or interface in java.sql">Connection</A> <B>getConnection</B>()
                         throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></PRE>
<DL>
<DD>Attempts to establish a connection with the data source.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html#getConnection()" title="class or interface in javax.sql">getConnection</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html" title="class or interface in javax.sql">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>A connection to the data source.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE> - if a database access error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="getConnection(java.lang.String, java.lang.String)"><!-- --></A><H3>
getConnection</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/Connection.html" title="class or interface in java.sql">Connection</A> <B>getConnection</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;username,
                                <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;password)
                         throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></PRE>
<DL>
<DD>Attempts to establish a connection with the data source.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html#getConnection(java.lang.String, java.lang.String)" title="class or interface in javax.sql">getConnection</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/sql/DataSource.html" title="class or interface in javax.sql">DataSource</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>username</CODE> - The database user on whose behalf the connection is being made.<DD><CODE>password</CODE> - The user's password.
<DT><B>Returns:</B><DD>A connection to the data source.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE> - if a database access error occurs.</DL>
</DD>
</DL>
<HR>

<A NAME="createFactory(org.geotools.factory.Hints)"><!-- --></A><H3>
createFactory</H3>
<PRE>
public <A HREF="../../../../../org/geotools/referencing/factory/AbstractAuthorityFactory.html" title="class in org.geotools.referencing.factory">AbstractAuthorityFactory</A> <B>createFactory</B>(<A HREF="../../../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory">Hints</A>&nbsp;hints)
                                       throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></PRE>
<DL>
<DD>Opens a connection and creates an EPSG factory for it. The default implementation attempts
 to create an instance of the class specified by the  key. This class shall
 have a constructor expecting the following arguments in that order: <A HREF="../../../../../org/geotools/factory/Hints.html" title="class in org.geotools.factory"><CODE>Hints</CODE></A>,
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/Connection.html" title="class or interface in java.sql"><CODE>Connection</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/geotools/referencing/factory/epsg/DataSource.html#createFactory(org.geotools.factory.Hints)">createFactory</A></CODE> in interface <CODE><A HREF="../../../../../org/geotools/referencing/factory/epsg/DataSource.html" title="interface in org.geotools.referencing.factory.epsg">DataSource</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hints</CODE> - A map of hints, including the low-level factories to use for CRS creation.
         This argument should be given unchanged to  constructor.
<DT><B>Returns:</B><DD>The <A HREF="../../../../../org/geotools/referencing/factory/epsg/FactoryUsingSQL.html" title="class in org.geotools.referencing.factory.epsg">EPSG factory</A> using SQL queries appropriate
         for this data source.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/sql/SQLException.html" title="class or interface in java.sql">SQLException</A></CODE> - if connection to the database failed.</DL>
</DD>
</DL>
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