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| RenderTool (VelocityTools 2.0 Documentation) | |
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| <FONT SIZE="-1"> | |
| org.apache.velocity.tools.generic</FONT> | |
| <BR> | |
| Class RenderTool</H2> | |
| <PRE> | |
| java.lang.Object | |
| <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html" title="class in org.apache.velocity.tools.generic">org.apache.velocity.tools.generic.SafeConfig</A> | |
| <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.velocity.tools.generic.RenderTool</B> | |
| </PRE> | |
| <DL> | |
| <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../org/apache/velocity/tools/view/tools/ViewRenderTool.html" title="class in org.apache.velocity.tools.view.tools">ViewRenderTool</A></DD> | |
| </DL> | |
| <HR> | |
| <DL> | |
| <DT><PRE><FONT SIZE="-1"><A HREF="../../../../../org/apache/velocity/tools/config/DefaultKey.html" title="annotation in org.apache.velocity.tools.config">@DefaultKey</A>(<A HREF="../../../../../org/apache/velocity/tools/config/DefaultKey.html#value()">value</A>="render") | |
| </FONT>public class <B>RenderTool</B><DT>extends <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html" title="class in org.apache.velocity.tools.generic">SafeConfig</A></DL> | |
| </PRE> | |
| <P> | |
| This tool exposes methods to evaluate the given | |
| strings as VTL (Velocity Template Language) | |
| using either a pre-configured context or one you | |
| provide directly. | |
| <pre> | |
| Example of eval(): | |
| Input | |
| ----- | |
| #set( $list = [1,2,3] ) | |
| #set( $object = '$list' ) | |
| #set( $method = 'size()' ) | |
| $render.eval("${object}.$method") | |
| Output | |
| ------ | |
| 3 | |
| Example of recurse(): | |
| Input | |
| ----- | |
| #macro( say_hi )hello world!#end | |
| #set( $foo = '#say_hi()' ) | |
| #set( $bar = '$foo' ) | |
| $render.recurse($bar) | |
| Output | |
| ------ | |
| hello world! | |
| Toolbox configuration: | |
| <tools> | |
| <toolbox scope="request"> | |
| <tool class="org.apache.velocity.tools.generic.RenderTool"> | |
| <property name="parseDepth" type="number" value="10"/> | |
| </tool> | |
| </toolbox> | |
| </tools> | |
| </pre> | |
| <p>Ok, so these examples are really lame. But, it seems like | |
| someone out there is always asking how to do stuff like this | |
| and we always tell them to write a tool. Now we can just tell | |
| them to use this tool.</p> | |
| <p>This tool may be used in any scope, however, the context provided | |
| for the <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(java.lang.String)"><CODE>eval(String)</CODE></A> and <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(java.lang.String)"><CODE>recurse(String)</CODE></A> methods | |
| will only be current if the tool is request scoped. If application or | |
| session scoped, then the context will be the same one set at the time | |
| of the tool's first use. In such a case, each call to eval(String) or | |
| recurse(String) will by default create a new Context that wraps the | |
| configured one to prevent modifications to the configured Context | |
| (concurrent or otherwise). If you wish to risk it and accrete changes | |
| then you can relax the thread-safety by setting the 'forceThreadSafe' | |
| property to 'false'. </p> | |
| <p>Of course none of the previous paragraph likely applies if you are | |
| not using the core tool management facilities or if you stick to the | |
| <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(org.apache.velocity.context.Context, java.lang.String)"><CODE>eval(Context,String)</CODE></A> and <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(org.apache.velocity.context.Context, java.lang.String)"><CODE>recurse(Context,String)</CODE></A> | |
| methods. :)</p> | |
| <p>This tool by default will catch | |
| and log any exceptions thrown during rendering and | |
| instead return null in such cases. It also limits recursion, by default, | |
| to 20 cycles, to prevent infinite loops. Both settings may be configured | |
| to behave otherwise.</p> | |
| <P> | |
| <P> | |
| <DL> | |
| <DT><B>Version:</B></DT> | |
| <DD>$Revision: 671010 $ $Date: 2008-06-23 20:40:41 -0700 (Mon, 23 Jun 2008) $</DD> | |
| <DT><B>Author:</B></DT> | |
| <DD>Nathan Bubna</DD> | |
| </DL> | |
| <HR> | |
| <P> | |
| <!-- =========== FIELD SUMMARY =========== --> | |
| <A NAME="field_summary"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> | |
| <B>Field Summary</B></FONT></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private boolean</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#catchExceptions">catchExceptions</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private org.apache.velocity.context.Context</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#context">context</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>static int</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#DEFAULT_PARSE_DEPTH">DEFAULT_PARSE_DEPTH</A></B></CODE> | |
| <BR> | |
| The maximum number of loops allowed when recursing.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private org.apache.velocity.app.VelocityEngine</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#engine">engine</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private boolean</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#forceThreadSafe">forceThreadSafe</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>static java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#KEY_CATCH_EXCEPTIONS">KEY_CATCH_EXCEPTIONS</A></B></CODE> | |
| <BR> | |
| <B>Deprecated.</B> </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>static java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#KEY_FORCE_THREAD_SAFE">KEY_FORCE_THREAD_SAFE</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>static java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#KEY_PARSE_DEPTH">KEY_PARSE_DEPTH</A></B></CODE> | |
| <BR> | |
| <B>Deprecated.</B> </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private static java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#LOG_TAG">LOG_TAG</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private int</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#parseDepth">parseDepth</A></B></CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| </TABLE> | |
| <A NAME="fields_inherited_from_class_org.apache.velocity.tools.generic.SafeConfig"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> | |
| <TH ALIGN="left"><B>Fields inherited from class org.apache.velocity.tools.generic.<A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html" title="class in org.apache.velocity.tools.generic">SafeConfig</A></B></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE><A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#LOCK_CONFIG_KEY">LOCK_CONFIG_KEY</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#OLD_LOCK_CONFIG_KEY">OLD_LOCK_CONFIG_KEY</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#SAFE_MODE_KEY">SAFE_MODE_KEY</A></CODE></TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> | |
| <A NAME="constructor_summary"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> | |
| <B>Constructor Summary</B></FONT></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#RenderTool()">RenderTool</A></B>()</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <!-- ========== METHOD SUMMARY =========== --> | |
| <A NAME="method_summary"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> | |
| <B>Method Summary</B></FONT></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>protected void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#configure(org.apache.velocity.tools.generic.ValueParser)">configure</A></B>(<A HREF="../../../../../org/apache/velocity/tools/generic/ValueParser.html" title="class in org.apache.velocity.tools.generic">ValueParser</A> parser)</CODE> | |
| <BR> | |
| Looks for deprecated parse depth and catch.exceptions properties, | |
| as well as any 'forceThreadSafe' setting.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#debug(java.lang.String)">debug</A></B>(java.lang.String message)</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>private void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#debug(java.lang.String, java.lang.Throwable)">debug</A></B>(java.lang.String message, | |
| java.lang.Throwable t)</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(org.apache.velocity.context.Context, java.lang.String)">eval</A></B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl)</CODE> | |
| <BR> | |
| Evaluates a String containing VTL using the current context, | |
| and returns the result as a String.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(java.lang.String)">eval</A></B>(java.lang.String vtl)</CODE> | |
| <BR> | |
| Evaluates a String containing VTL using the context passed | |
| to the <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setVelocityContext(org.apache.velocity.context.Context)"><CODE>setVelocityContext(org.apache.velocity.context.Context)</CODE></A> method.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> boolean</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#getCatchExceptions()">getCatchExceptions</A></B>()</CODE> | |
| <BR> | |
| Returns <code>true</code> if this render() and eval() methods will | |
| catch exceptions thrown during rendering.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> int</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#getParseDepth()">getParseDepth</A></B>()</CODE> | |
| <BR> | |
| Get the maximum number of loops allowed when recursing.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>protected java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#internalEval(org.apache.velocity.context.Context, java.lang.String)">internalEval</A></B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl)</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>protected java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#internalRecurse(org.apache.velocity.context.Context, java.lang.String, int)">internalRecurse</A></B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl, | |
| int count)</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(org.apache.velocity.context.Context, java.lang.String)">recurse</A></B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl)</CODE> | |
| <BR> | |
| Recursively evaluates a String containing VTL using the | |
| current context, and returns the result as a String.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> java.lang.String</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(java.lang.String)">recurse</A></B>(java.lang.String vtl)</CODE> | |
| <BR> | |
| Recursively evaluates a String containing VTL using the | |
| current context, and returns the result as a String.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setCatchExceptions(boolean)">setCatchExceptions</A></B>(boolean catchExceptions)</CODE> | |
| <BR> | |
| Sets whether or not the render() and eval() methods should catch | |
| exceptions during their execution or not.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setParseDepth(int)">setParseDepth</A></B>(int depth)</CODE> | |
| <BR> | |
| Set the maximum number of loops allowed when recursing.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setVelocityContext(org.apache.velocity.context.Context)">setVelocityContext</A></B>(org.apache.velocity.context.Context context)</CODE> | |
| <BR> | |
| Sets the <CODE>Context</CODE> to be used by the <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(java.lang.String)"><CODE>eval(String)</CODE></A> | |
| and <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(java.lang.String)"><CODE>recurse(String)</CODE></A> methods.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setVelocityEngine(org.apache.velocity.app.VelocityEngine)">setVelocityEngine</A></B>(org.apache.velocity.app.VelocityEngine ve)</CODE> | |
| <BR> | |
| Allow user to specify a VelocityEngine to be used | |
| in place of the Velocity singleton.</TD> | |
| </TR> | |
| </TABLE> | |
| <A NAME="methods_inherited_from_class_org.apache.velocity.tools.generic.SafeConfig"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> | |
| <TH ALIGN="left"><B>Methods inherited from class org.apache.velocity.tools.generic.<A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html" title="class in org.apache.velocity.tools.generic">SafeConfig</A></B></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE><A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#configure(java.util.Map)">configure</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#isConfigLocked()">isConfigLocked</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#isSafeMode()">isSafeMode</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#setLockConfig(boolean)">setLockConfig</A>, <A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#setSafeMode(boolean)">setSafeMode</A></CODE></TD> | |
| </TR> | |
| </TABLE> | |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> | |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <P> | |
| <!-- ============ FIELD DETAIL =========== --> | |
| <A NAME="field_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Field Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="DEFAULT_PARSE_DEPTH"><!-- --></A><H3> | |
| DEFAULT_PARSE_DEPTH</H3> | |
| <PRE> | |
| public static final int <B>DEFAULT_PARSE_DEPTH</B></PRE> | |
| <DL> | |
| <DD>The maximum number of loops allowed when recursing. | |
| <P> | |
| <DL> | |
| <DT><B>Since:</B></DT> | |
| <DD>VelocityTools 1.2</DD> | |
| <DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.velocity.tools.generic.RenderTool.DEFAULT_PARSE_DEPTH">Constant Field Values</A></DL> | |
| </DL> | |
| <HR> | |
| <A NAME="KEY_PARSE_DEPTH"><!-- --></A><H3> | |
| KEY_PARSE_DEPTH</H3> | |
| <PRE> | |
| <FONT SIZE="-1">@Deprecated | |
| </FONT>public static final java.lang.String <B>KEY_PARSE_DEPTH</B></PRE> | |
| <DL> | |
| <DD><B>Deprecated.</B> <DL> | |
| <DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.velocity.tools.generic.RenderTool.KEY_PARSE_DEPTH">Constant Field Values</A></DL> | |
| </DL> | |
| <HR> | |
| <A NAME="KEY_CATCH_EXCEPTIONS"><!-- --></A><H3> | |
| KEY_CATCH_EXCEPTIONS</H3> | |
| <PRE> | |
| <FONT SIZE="-1">@Deprecated | |
| </FONT>public static final java.lang.String <B>KEY_CATCH_EXCEPTIONS</B></PRE> | |
| <DL> | |
| <DD><B>Deprecated.</B> <DL> | |
| <DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.velocity.tools.generic.RenderTool.KEY_CATCH_EXCEPTIONS">Constant Field Values</A></DL> | |
| </DL> | |
| <HR> | |
| <A NAME="KEY_FORCE_THREAD_SAFE"><!-- --></A><H3> | |
| KEY_FORCE_THREAD_SAFE</H3> | |
| <PRE> | |
| public static final java.lang.String <B>KEY_FORCE_THREAD_SAFE</B></PRE> | |
| <DL> | |
| <DL> | |
| <DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.velocity.tools.generic.RenderTool.KEY_FORCE_THREAD_SAFE">Constant Field Values</A></DL> | |
| </DL> | |
| <HR> | |
| <A NAME="LOG_TAG"><!-- --></A><H3> | |
| LOG_TAG</H3> | |
| <PRE> | |
| private static final java.lang.String <B>LOG_TAG</B></PRE> | |
| <DL> | |
| <DL> | |
| <DT><B>See Also:</B><DD><A HREF="../../../../../constant-values.html#org.apache.velocity.tools.generic.RenderTool.LOG_TAG">Constant Field Values</A></DL> | |
| </DL> | |
| <HR> | |
| <A NAME="engine"><!-- --></A><H3> | |
| engine</H3> | |
| <PRE> | |
| private org.apache.velocity.app.VelocityEngine <B>engine</B></PRE> | |
| <DL> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <HR> | |
| <A NAME="context"><!-- --></A><H3> | |
| context</H3> | |
| <PRE> | |
| private org.apache.velocity.context.Context <B>context</B></PRE> | |
| <DL> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <HR> | |
| <A NAME="parseDepth"><!-- --></A><H3> | |
| parseDepth</H3> | |
| <PRE> | |
| private int <B>parseDepth</B></PRE> | |
| <DL> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <HR> | |
| <A NAME="catchExceptions"><!-- --></A><H3> | |
| catchExceptions</H3> | |
| <PRE> | |
| private boolean <B>catchExceptions</B></PRE> | |
| <DL> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <HR> | |
| <A NAME="forceThreadSafe"><!-- --></A><H3> | |
| forceThreadSafe</H3> | |
| <PRE> | |
| private boolean <B>forceThreadSafe</B></PRE> | |
| <DL> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> | |
| <A NAME="constructor_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Constructor Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="RenderTool()"><!-- --></A><H3> | |
| RenderTool</H3> | |
| <PRE> | |
| public <B>RenderTool</B>()</PRE> | |
| <DL> | |
| </DL> | |
| <!-- ============ METHOD DETAIL ========== --> | |
| <A NAME="method_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Method Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="configure(org.apache.velocity.tools.generic.ValueParser)"><!-- --></A><H3> | |
| configure</H3> | |
| <PRE> | |
| protected void <B>configure</B>(<A HREF="../../../../../org/apache/velocity/tools/generic/ValueParser.html" title="class in org.apache.velocity.tools.generic">ValueParser</A> parser)</PRE> | |
| <DL> | |
| <DD>Looks for deprecated parse depth and catch.exceptions properties, | |
| as well as any 'forceThreadSafe' setting. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html#configure(org.apache.velocity.tools.generic.ValueParser)">configure</A></CODE> in class <CODE><A HREF="../../../../../org/apache/velocity/tools/generic/SafeConfig.html" title="class in org.apache.velocity.tools.generic">SafeConfig</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="setVelocityEngine(org.apache.velocity.app.VelocityEngine)"><!-- --></A><H3> | |
| setVelocityEngine</H3> | |
| <PRE> | |
| public void <B>setVelocityEngine</B>(org.apache.velocity.app.VelocityEngine ve)</PRE> | |
| <DL> | |
| <DD>Allow user to specify a VelocityEngine to be used | |
| in place of the Velocity singleton. | |
| <P> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="setParseDepth(int)"><!-- --></A><H3> | |
| setParseDepth</H3> | |
| <PRE> | |
| public void <B>setParseDepth</B>(int depth)</PRE> | |
| <DL> | |
| <DD>Set the maximum number of loops allowed when recursing. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Since:</B></DT> | |
| <DD>VelocityTools 1.2</DD> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="setVelocityContext(org.apache.velocity.context.Context)"><!-- --></A><H3> | |
| setVelocityContext</H3> | |
| <PRE> | |
| public void <B>setVelocityContext</B>(org.apache.velocity.context.Context context)</PRE> | |
| <DL> | |
| <DD>Sets the <CODE>Context</CODE> to be used by the <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(java.lang.String)"><CODE>eval(String)</CODE></A> | |
| and <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#recurse(java.lang.String)"><CODE>recurse(String)</CODE></A> methods. | |
| <P> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="getParseDepth()"><!-- --></A><H3> | |
| getParseDepth</H3> | |
| <PRE> | |
| public int <B>getParseDepth</B>()</PRE> | |
| <DL> | |
| <DD>Get the maximum number of loops allowed when recursing. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Since:</B></DT> | |
| <DD>VelocityTools 1.2</DD> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="setCatchExceptions(boolean)"><!-- --></A><H3> | |
| setCatchExceptions</H3> | |
| <PRE> | |
| public void <B>setCatchExceptions</B>(boolean catchExceptions)</PRE> | |
| <DL> | |
| <DD>Sets whether or not the render() and eval() methods should catch | |
| exceptions during their execution or not. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Since:</B></DT> | |
| <DD>VelocityTools 1.3</DD> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="getCatchExceptions()"><!-- --></A><H3> | |
| getCatchExceptions</H3> | |
| <PRE> | |
| public boolean <B>getCatchExceptions</B>()</PRE> | |
| <DL> | |
| <DD>Returns <code>true</code> if this render() and eval() methods will | |
| catch exceptions thrown during rendering. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Since:</B></DT> | |
| <DD>VelocityTools 1.3</DD> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="eval(java.lang.String)"><!-- --></A><H3> | |
| eval</H3> | |
| <PRE> | |
| public java.lang.String <B>eval</B>(java.lang.String vtl) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><p>Evaluates a String containing VTL using the context passed | |
| to the <A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#setVelocityContext(org.apache.velocity.context.Context)"><CODE>setVelocityContext(org.apache.velocity.context.Context)</CODE></A> method. If this tool is request | |
| scoped, then this will be the current context and open to modification | |
| by the rendered VTL. If application or session scoped, the context | |
| will be a new wrapper around the configured context to protect it | |
| from modification. | |
| The results of the rendering are returned as a String. By default, | |
| <code>null</code> will be returned when this throws an exception. | |
| This evaluation is not recursive.</p> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>vtl</CODE> - the code to be evaluated | |
| <DT><B>Returns:</B><DD>the evaluated code as a String | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="recurse(java.lang.String)"><!-- --></A><H3> | |
| recurse</H3> | |
| <PRE> | |
| public java.lang.String <B>recurse</B>(java.lang.String vtl) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><p>Recursively evaluates a String containing VTL using the | |
| current context, and returns the result as a String. It | |
| will continue to re-evaluate the output of the last | |
| evaluation until an evaluation returns the same code | |
| that was fed into it.</p> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>vtl</CODE> - the code to be evaluated | |
| <DT><B>Returns:</B><DD>the evaluated code as a String | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE><DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/velocity/tools/generic/RenderTool.html#eval(java.lang.String)"><CODE>eval(String)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="eval(org.apache.velocity.context.Context, java.lang.String)"><!-- --></A><H3> | |
| eval</H3> | |
| <PRE> | |
| public java.lang.String <B>eval</B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><p>Evaluates a String containing VTL using the current context, | |
| and returns the result as a String. By default if this fails, then | |
| <code>null</code> will be returned, though this tool can be configured | |
| to let Exceptions pass through. This evaluation is not recursive.</p> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>ctx</CODE> - the current Context<DD><CODE>vtl</CODE> - the code to be evaluated | |
| <DT><B>Returns:</B><DD>the evaluated code as a String | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="internalEval(org.apache.velocity.context.Context, java.lang.String)"><!-- --></A><H3> | |
| internalEval</H3> | |
| <PRE> | |
| protected java.lang.String <B>internalEval</B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><DL> | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="recurse(org.apache.velocity.context.Context, java.lang.String)"><!-- --></A><H3> | |
| recurse</H3> | |
| <PRE> | |
| public java.lang.String <B>recurse</B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><p>Recursively evaluates a String containing VTL using the | |
| current context, and returns the result as a String. It | |
| will continue to re-evaluate the output of the last | |
| evaluation until an evaluation returns the same code | |
| that was fed into it or the number of recursive loops | |
| exceeds the set parse depth.</p> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>ctx</CODE> - the current Context<DD><CODE>vtl</CODE> - the code to be evaluated | |
| <DT><B>Returns:</B><DD>the evaluated code as a String | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="internalRecurse(org.apache.velocity.context.Context, java.lang.String, int)"><!-- --></A><H3> | |
| internalRecurse</H3> | |
| <PRE> | |
| protected java.lang.String <B>internalRecurse</B>(org.apache.velocity.context.Context ctx, | |
| java.lang.String vtl, | |
| int count) | |
| throws java.lang.Exception</PRE> | |
| <DL> | |
| <DD><DL> | |
| <DT><B>Throws:</B> | |
| <DD><CODE>java.lang.Exception</CODE></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="debug(java.lang.String)"><!-- --></A><H3> | |
| debug</H3> | |
| <PRE> | |
| private void <B>debug</B>(java.lang.String message)</PRE> | |
| <DL> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="debug(java.lang.String, java.lang.Throwable)"><!-- --></A><H3> | |
| debug</H3> | |
| <PRE> | |
| private void <B>debug</B>(java.lang.String message, | |
| java.lang.Throwable t)</PRE> | |
| <DL> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| </DL> | |
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