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ClasspathUtils.Delegate (Apache Ant API)
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org.apache.tools.ant.util
 
Class ClasspathUtils.Delegate</H2>
<PRE>
java.lang.Object
 <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by ">org.apache.tools.ant.util.ClasspathUtils.Delegate
</PRE>
<DL>
<DT>Enclosing class:<DD><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.html" title="class in org.apache.tools.ant.util">ClasspathUtils</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public static class ClasspathUtils.Delegate<DT>extends java.lang.Object</DL>
</PRE>

Delegate that helps out any specific ProjectComponent that needs
 dynamic classloading.

Ant ProjectComponents that need a to be able to dynamically load
 Classes and instantiate them often expose the following ant syntax
 sugar:

<ul><li> nested &lt;classpath&gt; </li>
 <li> attribute @classpathref </li>
 <li> attribute @classname </li></ul>

This class functions as a delegate handling the configuration
 issues for this recurring pattern. Its usage pattern, as the name
 suggests, is delegation rather than inheritance.

<DL>
<DT>Since:</DT>
 <DD>Ant 1.6</DD>
</DL>
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Method Summary</TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;<A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A></CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#createClasspath()">createClasspath</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delegate method handling the &lt;classpath&gt; tag.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;java.lang.ClassLoader</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#getClassLoader()">getClassLoader</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Finds or creates the classloader for this object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;java.lang.String</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#getClassLoadId()">getClassLoadId</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Computes the loaderId based on the configuration of the component.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;<A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A></CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#getClasspath()">getClasspath</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The classpath.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;boolean</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#isReverseLoader()">isReverseLoader</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the reverseLoader setting.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;java.lang.Object</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#newInstance()">newInstance</A>()</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Helper method obtaining a fresh instance of the class specified
 in the @classname and using the specified classpath.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;void</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#setClassname(java.lang.String)">setClassname</A>(java.lang.String&nbsp;fcqn)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delegate method handling the @classname attribute.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;void</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#setClasspath(org.apache.tools.ant.types.Path)">setClasspath</A>(<A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A>&nbsp;classpath)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method is a Delegate method handling the @classpath attribute.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;void</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#setClasspathref(org.apache.tools.ant.types.Reference)">setClasspathref</A>(<A HREF="../../../../../org/apache/tools/ant/types/Reference.html" title="class in org.apache.tools.ant.types">Reference</A>&nbsp;r)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delegate method handling the @classpathref attribute.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;void</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#setLoaderRef(org.apache.tools.ant.types.Reference)">setLoaderRef</A>(<A HREF="../../../../../org/apache/tools/ant/types/Reference.html" title="class in org.apache.tools.ant.types">Reference</A>&nbsp;r)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the loaderRef.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%">
<CODE>&nbsp;void</CODE></TD>
<TD><CODE><A HREF="../../../../../org/apache/tools/ant/util/ClasspathUtils.Delegate.html#setReverseLoader(boolean)">setReverseLoader</A>(boolean&nbsp;reverseLoader)</CODE>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delegate method handling the @reverseLoader attribute.</TD>
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<TH ALIGN="left">Methods inherited from class java.lang.Object</TH>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="setClasspath(org.apache.tools.ant.types.Path)"></A><H3>
setClasspath</H3>
<PRE>
public void setClasspath(<A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A>&nbsp;classpath)</PRE>
<DL>
<DD>This method is a Delegate method handling the @classpath attribute.

This attribute can set a path to add to the classpath.

<DD><DL>
<DT>Parameters:<DD><CODE>classpath</CODE> - the path to use for the classpath.</DL>
</DD>
</DL>
<HR>

<A NAME="createClasspath()"></A><H3>
createClasspath</H3>
<PRE>
public <A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A> createClasspath()</PRE>
<DL>
<DD>Delegate method handling the &lt;classpath&gt; tag.

This nested path-like structure can set a path to add to the
 classpath.

<DD><DL>

<DT>Returns:<DD>the created path.</DL>
</DD>
</DL>
<HR>

<A NAME="setClassname(java.lang.String)"></A><H3>
setClassname</H3>
<PRE>
public void setClassname(java.lang.String&nbsp;fcqn)</PRE>
<DL>
<DD>Delegate method handling the @classname attribute.

This attribute sets the full qualified class name of the class
 to load and instantiate.

<DD><DL>
<DT>Parameters:<DD><CODE>fcqn</CODE> - the name of the class to load.</DL>
</DD>
</DL>
<HR>

<A NAME="setClasspathref(org.apache.tools.ant.types.Reference)"></A><H3>
setClasspathref</H3>
<PRE>
public void setClasspathref(<A HREF="../../../../../org/apache/tools/ant/types/Reference.html" title="class in org.apache.tools.ant.types">Reference</A>&nbsp;r)</PRE>
<DL>
<DD>Delegate method handling the @classpathref attribute.

This attribute can add a referenced path-like structure to the
 classpath.

<DD><DL>
<DT>Parameters:<DD><CODE>r</CODE> - the reference to the classpath.</DL>
</DD>
</DL>
<HR>

<A NAME="setReverseLoader(boolean)"></A><H3>
setReverseLoader</H3>
<PRE>
public void setReverseLoader(boolean&nbsp;reverseLoader)</PRE>
<DL>
<DD>Delegate method handling the @reverseLoader attribute.

This attribute can set a boolean indicating that the used
 classloader should NOT follow the classical parent-first scheme.

By default this is supposed to be false.

Caution: this behaviour is contradictory to the normal way
 classloaders work. Do not let your ProjectComponent use it if
 you are not really sure.

<DD><DL>
<DT>Parameters:<DD><CODE>reverseLoader</CODE> - if true reverse the order of looking up a class.</DL>
</DD>
</DL>
<HR>

<A NAME="setLoaderRef(org.apache.tools.ant.types.Reference)"></A><H3>
setLoaderRef</H3>
<PRE>
public void setLoaderRef(<A HREF="../../../../../org/apache/tools/ant/types/Reference.html" title="class in org.apache.tools.ant.types">Reference</A>&nbsp;r)</PRE>
<DL>
<DD>Sets the loaderRef.

<DD><DL>
<DT>Parameters:<DD><CODE>r</CODE> - the reference to the loader.</DL>
</DD>
</DL>
<HR>

<A NAME="getClassLoader()"></A><H3>
getClassLoader</H3>
<PRE>
public java.lang.ClassLoader getClassLoader()</PRE>
<DL>
<DD>Finds or creates the classloader for this object.

<DD><DL>

<DT>Returns:<DD>The class loader.</DL>
</DD>
</DL>
<HR>

<A NAME="getClassLoadId()"></A><H3>
getClassLoadId</H3>
<PRE>
public java.lang.String getClassLoadId()</PRE>
<DL>
<DD>Computes the loaderId based on the configuration of the component.

<DD><DL>

<DT>Returns:<DD>a loader identifier.</DL>
</DD>
</DL>
<HR>

<A NAME="newInstance()"></A><H3>
newInstance</H3>
<PRE>
public java.lang.Object newInstance()</PRE>
<DL>
<DD>Helper method obtaining a fresh instance of the class specified
 in the @classname and using the specified classpath.

<DD><DL>

<DT>Returns:<DD>the fresh instantiated object.</DL>
</DD>
</DL>
<HR>

<A NAME="getClasspath()"></A><H3>
getClasspath</H3>
<PRE>
public <A HREF="../../../../../org/apache/tools/ant/types/Path.html" title="class in org.apache.tools.ant.types">Path</A> getClasspath()</PRE>
<DL>
<DD>The classpath.

<DD><DL>

<DT>Returns:<DD>the classpath.</DL>
</DD>
</DL>
<HR>

<A NAME="isReverseLoader()"></A><H3>
isReverseLoader</H3>
<PRE>
public boolean isReverseLoader()</PRE>
<DL>
<DD>Get the reverseLoader setting.

<DD><DL>

<DT>Returns:<DD>true if looking up in reverse order.</DL>
</DD>
</DL>

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