org.apache.commons.fileupload.util

## Class FileItemHeadersImpl

- java.lang.Object
- - org.apache.commons.fileupload.util.FileItemHeadersImpl

- All Implemented Interfaces:
    Serializable, FileItemHeaders

      public class FileItemHeadersImpl
      extends Object
      implements FileItemHeaders, Serializable

  Default implementation of the `FileItemHeaders` interface.
  Since:
    1.2.1
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `FileItemHeadersImpl()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addHeader(String name, String value)` Method to add header values to this instance.
    `String` | `getHeader(String name)` Returns the value of the specified part header as a `String`.
    `Iterator<String>` | `getHeaderNames()` Returns an `Iterator` of all the header names.
    `Iterator<String>` | `getHeaders(String name)` Returns all the values of the specified item header as an `Iterator` of `String` objects.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### FileItemHeadersImpl

          public FileItemHeadersImpl()

  - ### Method Detail

    - #### getHeader

          public String getHeader(String name)

      Returns the value of the specified part header as a `String`. If the part did not include a header of the specified name, this method return `null`. If there are multiple headers with the same name, this method returns the first header in the item. The header name is case insensitive.
      Specified by:
        `getHeader` in interface `FileItemHeaders`
      Parameters:
        `name` - a `String` specifying the header name
      Returns:
        a `String` containing the value of the requested header, or `null` if the item does not have a header of that name

    - #### getHeaderNames

          public Iterator<String> getHeaderNames()

      Returns an `Iterator` of all the header names.

      Specified by:
        `getHeaderNames` in interface `FileItemHeaders`
      Returns:
        an `Iterator` containing all of the names of headers provided with this file item. If the item does not have any headers return an empty `Iterator`

    - #### getHeaders

          public Iterator<String> getHeaders(String name)

      Returns all the values of the specified item header as an `Iterator` of `String` objects.

      If the item did not include any headers of the specified name, this method returns an empty `Iterator`. The header name is case insensitive.

      Specified by:
        `getHeaders` in interface `FileItemHeaders`
      Parameters:
        `name` - a `String` specifying the header name
      Returns:
        an `Iterator` containing the values of the requested header. If the item does not have any headers of that name, return an empty `Iterator`

    - #### addHeader

          public void addHeader(String name,
                                String value)

      Method to add header values to this instance.
      Parameters:
        `name` - name of this header
        `value` - value of this header

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