Apache Ant AntStructure Task

This task is used to generate a DTD for Ant buildfiles. It contains information about all tasks currently known to Ant.

We can always add XML entities using <taskdef> or <typedef> elements. This task doesn't know about required attributes.

AntStructure Task Attributes

Attribute	Description	Required
output	A output file to write the DTD.	Yes

We can simply use it using <antstructure> element by specifying output file. See the example below.

If we want to specify a structure other than a DTD, first we need to implement the interface AntStructure.

package org.example;
import org.apache.tools.ant.taskdefs.AntStructure;
public class MyPrinter implements AntStructure.StructurePrinter {
    ...
}

and then we can use it via typedef element.

<typedef name="myprinter" classname="org.example.MyPrinter"/>
<antstructure output="project.my">
  <myprinter/>
</antstructure>

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