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ResourceLoader (Tuscany Common incubating-M1 API)
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org.apache.tuscany.common.resource</FONT>
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Interface ResourceLoader</H2>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../org/apache/tuscany/common/resource/impl/ResourceLoaderImpl.html" title="class in org.apache.tuscany.common.resource.impl">ResourceLoaderImpl</A></DD>
</DL>
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<DL>
<DT><PRE>public interface <B>ResourceLoader</B></DL>
</PRE>
<P>
Interface which abstracts the implementation of something that is able to
load resources (such as a ClassLoader). All Tuscany code should use this
API rather than a ClassLoader directly in order to reduce the risk of
memory leaks due to ClassLoader references.
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Rev: 379878 $ $Date: 2006-02-22 12:45:50 -0800 (Wed, 22 Feb 2006) $</DD>
</DL>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.Class<?></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#addClass(byte[])">addClass</A></B>(byte[] bytes)</CODE>
<BR>
Converts an array of bytes into a Class.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.ClassLoader</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#getClassLoader()">getClassLoader</A></B>()</CODE>
<BR>
Returns the underlying classloader this loader is wrapping.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.List<<A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html" title="interface in org.apache.tuscany.common.resource">ResourceLoader</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#getParents()">getParents</A></B>()</CODE>
<BR>
Returns the parent resource loaders.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.net.URL</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#getResource(java.lang.String)">getResource</A></B>(java.lang.String name)</CODE>
<BR>
Finds the first resource with the given name.</TD>
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<CODE> java.util.Iterator<java.net.URL></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#getResources(java.lang.String)">getResources</A></B>(java.lang.String name)</CODE>
<BR>
Find resources with the given name that are available from this
ResourceLoader or any of its parents.</TD>
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<CODE> java.lang.Class<?></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#loadClass(java.lang.String)">loadClass</A></B>(java.lang.String name)</CODE>
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Loads the class with the specified binary name.</TD>
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<A NAME="getParents()"><!-- --></A><H3>
getParents</H3>
<PRE>
java.util.List<<A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html" title="interface in org.apache.tuscany.common.resource">ResourceLoader</A>> <B>getParents</B>()</PRE>
<DL>
<DD>Returns the parent resource loaders.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>resource loaders that are parents to this one</DL>
</DD>
</DL>
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<A NAME="loadClass(java.lang.String)"><!-- --></A><H3>
loadClass</H3>
<PRE>
java.lang.Class<?> <B>loadClass</B>(java.lang.String name)
throws java.lang.ClassNotFoundException</PRE>
<DL>
<DD>Loads the class with the specified binary name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the binary name of the class
<DT><B>Returns:</B><DD>the resulting Class object
<DT><B>Throws:</B>
<DD><CODE>java.lang.ClassNotFoundException</CODE> - if the class was not found<DT><B>See Also:</B><DD><CODE>ClassLoader.loadClass(String)</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="addClass(byte[])"><!-- --></A><H3>
addClass</H3>
<PRE>
java.lang.Class<?> <B>addClass</B>(byte[] bytes)</PRE>
<DL>
<DD>Converts an array of bytes into a Class.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bytes</CODE> - the bytecode for the class; must match the class file format
<DT><B>Returns:</B><DD>a Class defined from the supplied bytecode</DL>
</DD>
</DL>
<HR>
<A NAME="getResource(java.lang.String)"><!-- --></A><H3>
getResource</H3>
<PRE>
java.net.URL <B>getResource</B>(java.lang.String name)</PRE>
<DL>
<DD>Finds the first resource with the given name.
<p/>
Each parent is searched first (in the order returned by <A HREF="../../../../../org/apache/tuscany/common/resource/ResourceLoader.html#getParents()"><CODE>getParents()</CODE></A>)
and the first resource located is found. If no parent returns a resource then
the first resource defined by this ResourceLoader is returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the resource name
<DT><B>Returns:</B><DD>a <CODE>URL</CODE> that can be used to read the resource, or null if no resource could be found</DL>
</DD>
</DL>
<HR>
<A NAME="getResources(java.lang.String)"><!-- --></A><H3>
getResources</H3>
<PRE>
java.util.Iterator<java.net.URL> <B>getResources</B>(java.lang.String name)
throws java.io.IOException</PRE>
<DL>
<DD>Find resources with the given name that are available from this
ResourceLoader or any of its parents.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the resource name
<DT><B>Returns:</B><DD>an Iterator of <CODE>URL</CODE> objects for the resource
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if there was a problem locating the resources</DL>
</DD>
</DL>
<HR>
<A NAME="getClassLoader()"><!-- --></A><H3>
getClassLoader</H3>
<PRE>
java.lang.ClassLoader <B>getClassLoader</B>()</PRE>
<DL>
<DD>Returns the underlying classloader this loader is wrapping.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the underlying classloader this loader is wrapping</DL>
</DD>
</DL>
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