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## org.springframework.core.io
Class DescriptiveResource

    java.lang.Object
      org.springframework.core.io.AbstractResource
          org.springframework.core.io.DescriptiveResource

All Implemented Interfaces:
  InputStreamSource, Resource

    public class DescriptiveResource

extends AbstractResource

Simple `Resource` implementation that holds a resource description but does not point to an actually readable resource.

To be used as placeholder if a Resource argument is demanded but not necessarily used for reading.

Since:
  1.2.6
Author:
  Juergen Hoeller

Constructor Summary
`DescriptiveResource(String description)` Create a new DescriptiveResource.

Method Summary
`boolean` | `equals(Object obj)` This implementation compares the underlying description String.
`String` | `getDescription()` This abstract method declaration shadows the method in the Resource interface.
`InputStream` | `getInputStream()` Return an `InputStream`.
`int` | `hashCode()` This implementation returns the hash code of the underlying description String.

Methods inherited from class org.springframework.core.io.AbstractResource
`createRelative, exists, getFile, getFilename, getURL, isOpen, toString`

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

Constructor Detail

### DescriptiveResource

    public DescriptiveResource(String description)

  Create a new DescriptiveResource.

  Parameters:
    `description` - the resource description

Method Detail

### getInputStream

    public InputStream getInputStream()
                               throws IOException

  Description copied from interface: `InputStreamSource`
  Return an `InputStream`.

  It is expected that each call creates a fresh stream.

  This requirement is particularly important when you consider an API such as JavaMail, which needs to be able to read the stream multiple times when creating mail attachments. For such a use case, it is required that each `getInputStream()` call returns a fresh stream.

  Throws:
    `IOException` - if the stream could not be opened
  See Also:
    `MimeMessageHelper.addAttachment(String, InputStreamSource)`

### getDescription

    public String getDescription()

  Description copied from class: `AbstractResource`
  This abstract method declaration shadows the method in the Resource interface. This is necessary to make the `toString` implementation in this class work on Sun's JDK 1.3 classic VM, which can't find the method when executing `toString` else. Furthermore, `getDescription` is also called from `equals` and `hashCode`

  Specified by:
    `getDescription` in interface `Resource`
  Specified by:
    `getDescription` in class `AbstractResource`
  See Also:
    `Resource.getDescription()`, `AbstractResource.toString()`, `AbstractResource.equals(Object)`, `AbstractResource.hashCode()`

### equals

    public boolean equals(Object obj)

  This implementation compares the underlying description String.

  Overrides:
    `equals` in class `AbstractResource`
  See Also:
    `AbstractResource.getDescription()`

### hashCode

    public int hashCode()

  This implementation returns the hash code of the underlying description String.

  Overrides:
    `hashCode` in class `AbstractResource`
  See Also:
    `AbstractResource.getDescription()`

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