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Java Source Code / Java Documentation » Sevlet Container » tomcat connectors » org.apache.tomcat.util.collections 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.tomcat.util.collections.MultiMap

All known Subclasses:   org.apache.tomcat.util.http.Parameters,
MultiMap
public class MultiMap (Code)
An efficient representation for certain type of map. The keys can have a single or multi values, but most of the time there are single values. The data is of "MessageBytes" type, meaning bytes[] that can be converted to Strings ( if needed, and encoding is lazy-binded ). This is a base class for MimeHeaders, Parameters and Cookies. Data structures: each field is a single-valued key/value. The fields are allocated when needed, and are recycled. The current implementation does linear search, in future we'll also use the hashkey.
author:
   dac@eng.sun.com
author:
   James Todd [gonzo@eng.sun.com]
author:
   Costin Manolache

Inner Class :final class Field

Field Summary
final static  intLAST
    
final static  intNEED_NEXT
    
protected  intcount
    
protected  Field[]fields
    

Constructor Summary
public  MultiMap(int initial_size)
    

Method Summary
public  intaddField()
     Create a new, unitialized entry.
public  intfind(String name, int starting)
     Find the index of a field with the given name.
public  intfindFirst(String name)
    
public  intfindIgnoreCase(String name, int starting)
     Find the index of a field with the given name.
public  intfindNext(int startPos)
    
public  MessageBytesget(String name)
    
public  MessageBytesgetName(int n)
     Returns the Nth header name This may be used to iterate through all header fields.
public  MessageBytesgetValue(int n)
     Returns the Nth header value This may be used to iterate through all header fields.
public  voidrecycle()
     Clears all header fields.
public  voidremove(int i)
     Removes the field at the specified position.
public  intsize()
     Returns the current number of header fields.

Field Detail
LAST
final static int LAST(Code)



NEED_NEXT
final static int NEED_NEXT(Code)



count
protected int count(Code)



fields
protected Field[] fields(Code)




Constructor Detail
MultiMap
public MultiMap(int initial_size)(Code)




Method Detail
addField
public int addField()(Code)
Create a new, unitialized entry.



find
public int find(String name, int starting)(Code)
Find the index of a field with the given name.



findFirst
public int findFirst(String name)(Code)



findIgnoreCase
public int findIgnoreCase(String name, int starting)(Code)
Find the index of a field with the given name.



findNext
public int findNext(int startPos)(Code)



get
public MessageBytes get(String name)(Code)



getName
public MessageBytes getName(int n)(Code)
Returns the Nth header name This may be used to iterate through all header fields. An exception is thrown if the index is not valid ( <0 or >size )



getValue
public MessageBytes getValue(int n)(Code)
Returns the Nth header value This may be used to iterate through all header fields.



recycle
public void recycle()(Code)
Clears all header fields.



remove
public void remove(int i)(Code)
Removes the field at the specified position. MultiMap will preserve the order of field add unless remove() is called. This is not thread-safe, and will invalidate all iterators. This is not a frequent operation for Headers and Parameters - there are better ways ( like adding a "isValid" field )



size
public int size()(Code)
Returns the current number of header fields.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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