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## org.w3c.www.http
Class HttpBag

    java.lang.Object
      |
      +--org.w3c.www.http.BasicValue
            |
            +--org.w3c.www.http.HttpBag

public class HttpBag
extends BasicValue

Internal representation of protocol headers conforming to the bag spec. The bag specification is part of the Protocol Extension Protocol defined by w3c, it can be found

Fields inherited from class org.w3c.www.http.BasicValue
`isValid, raw, rlen, roff`

Method Summary
`void` | `addBag(HttpBag subbag)` Add a named bag into this bag.
`void` | `addItem(HttpBag subbag)` Add a sub-bag to this bag.
`void` | `addItem(java.lang.String name)` Add an item into this bag.
`HttpBag` | `getBag(java.lang.String name)` Get a named sub-bag from this bag.
`java.lang.String` | `getName()` Get this bag names
`java.lang.Object` | `getValue()` HeaderValue implemenntation - Get this header value.
`boolean` | `hasBag(java.lang.String name)` Does this bag have a named sub-bag of the given name ?
`boolean` | `hasItem(java.lang.String name)` Does this bag contains the given item, being a bag or a simple word.
`boolean` | `isToplevelBag()` Is that a top level bag or not ?
`java.util.Enumeration` | `keys()` Get all named items from this bag.
`protected void` | `parse()` parse.
`protected HttpBag` | `parseBag(org.w3c.www.http.ParseState ps)` parse bag.
`void` | `removeItem(java.lang.String name)` Remove an item from that bag.
`protected void` | `updateByteValue()` Update the RFC822 compatible header value for this object.

Methods inherited from class org.w3c.www.http.BasicValue
`addBytes, appendValue, checkByteValue, emit, error, invalidateByteValue, setBytes, setString, toExternalForm, toString, validate`

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

Method Detail

### updateByteValue

    protected final void updateByteValue()

  Description copied from class: BasicValue
  Update the RFC822 compatible header value for this object.
  Overrides:
    updateByteValue in class BasicValue

### parseBag

    protected HttpBag parseBag(org.w3c.www.http.ParseState ps)
                        throws HttpParserException

  parse bag.
  Throws:
    HttpParserException - if parsing failed.

### parse

    protected final void parse()
                        throws HttpParserException

  parse.
  Overrides:
    parse in class BasicValue
  Throws:
    HttpParserException - if parsing failed.

### getValue

    public java.lang.Object getValue()

  Description copied from class: BasicValue
  HeaderValue implemenntation - Get this header value.
  Overrides:
    getValue in class BasicValue
  Tags copied from class: BasicValue
  Returns:
    An object representing the parsed value for this header.

### getName

    public java.lang.String getName()

  Get this bag names
  Returns:
    The name of this bag.

### addBag

    public void addBag(HttpBag subbag)

  Add a named bag into this bag.
  Parameters:
    `bag` - The bag to add (in case item is a bag).

### hasBag

    public boolean hasBag(java.lang.String name)

  Does this bag have a named sub-bag of the given name ?
  Parameters:
    `name` - The name of the sub-bag to be tested for.
  Returns:
    true if this sub-bag exists.

### getBag

    public HttpBag getBag(java.lang.String name)

  Get a named sub-bag from this bag.
  Parameters:
    `name` - The name of the sub-bag to get.
  Returns:
    A bag instance, or null if none was found.

### addItem

    public void addItem(java.lang.String name)

  Add an item into this bag.
  Parameters:
    `name` - The new item name.

### addItem

    public void addItem(HttpBag subbag)

  Add a sub-bag to this bag.
  Parameters:
    `subbag` - The sub-bag to add.

### hasItem

    public boolean hasItem(java.lang.String name)

  Does this bag contains the given item, being a bag or a simple word.
  Parameters:
    `name` - The name of the item to test.
  Returns:
    true if the bag contains the given item, false otherwise.

### removeItem

    public void removeItem(java.lang.String name)

  Remove an item from that bag.
  Parameters:
    `name` - The name of the item to remove.

### keys

    public java.util.Enumeration keys()

  Get all named items from this bag. This include both named sub-bags and items by their own.

### isToplevelBag

    public boolean isToplevelBag()

  Is that a top level bag or not ?
  Returns:
    A boolean, true if the bag was a toplevel bag.

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