JavaConstantResource (Apache Ant API)

java.lang.Object
- org.apache.tools.ant.ProjectComponent
- - org.apache.tools.ant.types.DataType
  - - org.apache.tools.ant.types.Resource
    - - org.apache.tools.ant.types.resources.AbstractClasspathResource
      - org.apache.tools.ant.types.resources.JavaConstantResource

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable<Resource>, java.lang.Iterable<Resource>, ResourceCollection
```
public class JavaConstantResource
extends AbstractClasspathResource
```
A resource that is a java constant. This lets you extract values off the classpath and use them elsewhere

Since:

Ant 1.7

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.tools.ant.types.resources.AbstractClasspathResource
  AbstractClasspathResource.ClassLoaderWithFlag

Field Summary
- Fields inherited from class org.apache.tools.ant.types.Resource
  MAGIC, UNKNOWN_DATETIME, UNKNOWN_SIZE
- Fields inherited from class org.apache.tools.ant.types.DataType
  checked, ref
- Fields inherited from class org.apache.tools.ant.ProjectComponent
  description, location, project

Constructor Summary

Constructors
Constructor Description

JavaConstantResource()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.io.InputStream`	`openInputStream(java.lang.ClassLoader cl)`	open the input stream from a specific classloader

Methods inherited from class org.apache.tools.ant.types.resources.AbstractClasspathResource
createClasspath, dieOnCircularReference, getClassLoader, getClasspath, getInputStream, getLoader, getRef, isExists, setClasspath, setClasspathRef, setLoaderRef, setParentFirst, setRefid

Methods inherited from class org.apache.tools.ant.types.Resource
as, asOptional, clone, compareTo, equals, getLastModified, getMagicNumber, getName, getOutputStream, getSize, hashCode, isDirectory, isFilesystemOnly, iterator, setDirectory, setExists, setLastModified, setName, setSize, size, toLongString, toString

Methods inherited from class org.apache.tools.ant.types.DataType
checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes

Methods inherited from class org.apache.tools.ant.ProjectComponent
getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Methods inherited from interface org.apache.tools.ant.types.ResourceCollection
isEmpty, stream

- Constructor Detail
  - JavaConstantResource
```
public JavaConstantResource()
```
- Method Detail
  - openInputStream
```
protected java.io.InputStream openInputStream(java.lang.ClassLoader cl)
                                       throws java.io.IOException
```
    open the input stream from a specific classloader
    
    Specified by:
    
    openInputStream in class AbstractClasspathResource
    
    Parameters:
    
    cl - the classloader to use. Will be null if the system classloader is used
    
    Returns:
    
    an open input stream for the resource
    
    Throws:
    
    java.io.IOException - if an error occurs.