File	Doc	Category	Size	Date	Package
BasicHeaderIterator.java	API Doc	Android 1.5 API	5354	Wed May 06 22:41:10 BST 2009	org.apache.http.message

BasicHeaderIterator

• java.lang.Object

Fields Summary
protected final Header[]	allHeaders An array of headers to iterate over. Not all elements of this array are necessarily part of the iteration. This array will never be modified by the iterator. Derived implementations are expected to adhere to this restriction.
protected int	currentIndex The position of the next header in {@link #allHeaders allHeaders}. Negative if the iteration is over.
protected String	headerName The header name to filter by. null to iterate over all headers in the array.

Constructors Summary
public BasicHeaderIterator(Header[] headers, String name) Creates a new header iterator. param headers an array of headers over which to iterate param name the name of the headers over which to iterate, or null for any if (headers == null) { throw new IllegalArgumentException ("Header array must not be null."); } this.allHeaders = headers; this.headerName = name; this.currentIndex = findNext(-1);

Methods Summary
protected boolean	filterHeader(int index) Checks whether a header is part of the iteration. param index the index of the header to check return true if the header should be part of the iteration, false to skip return (this.headerName == null) || this.headerName.equalsIgnoreCase(this.allHeaders[index].getName());
protected int	findNext(int from) Determines the index of the next header. param from one less than the index to consider first, -1 to search for the first header return the index of the next header that matches the filter name, or negative if there are no more headers if (from < -1) return -1; final int to = this.allHeaders.length-1; boolean found = false; while (!found && (from < to)) { from++; found = filterHeader(from); } return found ? from : -1;
public boolean	hasNext() return (this.currentIndex >= 0);
public final java.lang.Object	next() Returns the next header. Same as {@link #nextHeader nextHeader}, but not type-safe. return the next header in this iteration throws NoSuchElementException if there are no more headers return nextHeader();
public org.apache.http.Header	nextHeader() Obtains the next header from this iteration. return the next header in this iteration throws NoSuchElementException if there are no more headers final int current = this.currentIndex; if (current < 0) { throw new NoSuchElementException("Iteration already finished."); } this.currentIndex = findNext(current); return this.allHeaders[current];
public void	remove() Removing headers is not supported. throws UnsupportedOperationException always throw new UnsupportedOperationException ("Removing headers is not supported.");