datasourcefactory.html

用jsp语言自己做的一个网站bookshot的全套程序以及一些样例。完全属于原创。

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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<B>Constructor Detail</B></FONT></TD>
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<A NAME="DataSourceFactory()"><!-- --></A><H3>
DataSourceFactory</H3>
<PRE>
public <B>DataSourceFactory</B>()</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<B>Method Detail</B></FONT></TD>
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<A NAME="getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)"><!-- --></A><H3>
getObjectInstance</H3>
<PRE>
public java.lang.Object <B>getObjectInstance</B>(java.lang.Object&nbsp;obj,
                                          javax.naming.Name&nbsp;name,
                                          javax.naming.Context&nbsp;nameCtx,
                                          java.util.Hashtable&nbsp;environment)
                                   throws javax.naming.NamingException</PRE>
<DL>
<DD>Creates an instance of the DataSource based on the
 configuration info. The class name must be passed as a parameter
 named "dataSourceClassName". Introspection is used to find
 and call setter methods in the DataSource corresponding to all
 other parameters.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getObjectInstance</CODE> in interface <CODE>javax.naming.spi.ObjectFactory</CODE></DL>
</DD>
<DD><DL>

<DD><CODE>javax.naming.NamingException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="setProperty(java.lang.String, java.lang.String, java.lang.Object)"><!-- --></A><H3>
setProperty</H3>
<PRE>
private void <B>setProperty</B>(java.lang.String&nbsp;prop,
                         java.lang.String&nbsp;value,
                         java.lang.Object&nbsp;ds)</PRE>
<DL>
<DD>Sets the specified property to the specified value in the
 specified object.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getSetter(java.lang.String, java.lang.Object)"><!-- --></A><H3>
getSetter</H3>
<PRE>
private java.lang.reflect.Method <B>getSetter</B>(java.lang.String&nbsp;prop,
                                           java.lang.Object&nbsp;ds)</PRE>
<DL>
<DD>Returns the setter method corresponding to the property name in
 the specified object, or null if no matching setter method is
 found.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="buildArgs(java.lang.String, java.lang.reflect.Method)"><!-- --></A><H3>
buildArgs</H3>
<PRE>
private java.lang.Object[] <B>buildArgs</B>(java.lang.String&nbsp;value,
                                     java.lang.reflect.Method&nbsp;setter)</PRE>
<DL>
<DD>Converts the specified String value to the setter methods parameter
 type, if possible, and returns it as an Object array suitable as
 the argument to the Method.invoke() method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="coerceValue(java.lang.String, java.lang.Class)"><!-- --></A><H3>
coerceValue</H3>
<PRE>
private java.lang.Object <B>coerceValue</B>(java.lang.String&nbsp;value,
                                     java.lang.Class&nbsp;type)</PRE>
<DL>
<DD>Converts the specified String value to the specified type, if
 possible, and returns the converted value.

 Only conversion to Integer and Boolean is currently supported,
 since these types covers all DataSource implementations I've
 come across. It's easy to add new conversions if needed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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