//
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// Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd.
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// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
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//
package org.eclipse.jetty.util;
import java.nio.ByteBuffer;
import java.util.Set;
A Trie String lookup data structure.
Type parameters: - <V> – the Trie entry type
/**
* A Trie String lookup data structure.
*
* @param <V> the Trie entry type
*/
public interface Trie<V>
{
Put an entry into the Trie
Params: - s – The key for the entry
- v – The value of the entry
Returns: True if the Trie had capacity to add the field.
/**
* Put an entry into the Trie
*
* @param s The key for the entry
* @param v The value of the entry
* @return True if the Trie had capacity to add the field.
*/
public boolean put(String s, V v);
Put a value as both a key and a value.
Params: - v – The value and key
Returns: True if the Trie had capacity to add the field.
/**
* Put a value as both a key and a value.
*
* @param v The value and key
* @return True if the Trie had capacity to add the field.
*/
public boolean put(V v);
public V remove(String s);
Get an exact match from a String key
Params: - s – The key
Returns: the value for the string key
/**
* Get an exact match from a String key
*
* @param s The key
* @return the value for the string key
*/
public V get(String s);
Get an exact match from a String key
Params: - s – The key
- offset – The offset within the string of the key
- len – the length of the key
Returns: the value for the string / offset / length
/**
* Get an exact match from a String key
*
* @param s The key
* @param offset The offset within the string of the key
* @param len the length of the key
* @return the value for the string / offset / length
*/
public V get(String s, int offset, int len);
Get an exact match from a segment of a ByteBuufer as key
Params: - b – The buffer
Returns: The value or null if not found
/**
* Get an exact match from a segment of a ByteBuufer as key
*
* @param b The buffer
* @return The value or null if not found
*/
public V get(ByteBuffer b);
Get an exact match from a segment of a ByteBuufer as key
Params: - b – The buffer
- offset – The offset within the buffer of the key
- len – the length of the key
Returns: The value or null if not found
/**
* Get an exact match from a segment of a ByteBuufer as key
*
* @param b The buffer
* @param offset The offset within the buffer of the key
* @param len the length of the key
* @return The value or null if not found
*/
public V get(ByteBuffer b, int offset, int len);
Get the best match from key in a String.
Params: - s – The string
Returns: The value or null if not found
/**
* Get the best match from key in a String.
*
* @param s The string
* @return The value or null if not found
*/
public V getBest(String s);
Get the best match from key in a String.
Params: - s – The string
- offset – The offset within the string of the key
- len – the length of the key
Returns: The value or null if not found
/**
* Get the best match from key in a String.
*
* @param s The string
* @param offset The offset within the string of the key
* @param len the length of the key
* @return The value or null if not found
*/
public V getBest(String s, int offset, int len);
Get the best match from key in a byte array.
The key is assumed to by ISO_8859_1 characters.
Params: - b – The buffer
- offset – The offset within the array of the key
- len – the length of the key
Returns: The value or null if not found
/**
* Get the best match from key in a byte array.
* The key is assumed to by ISO_8859_1 characters.
*
* @param b The buffer
* @param offset The offset within the array of the key
* @param len the length of the key
* @return The value or null if not found
*/
public V getBest(byte[] b, int offset, int len);
Get the best match from key in a byte buffer.
The key is assumed to by ISO_8859_1 characters.
Params: - b – The buffer
- offset – The offset within the buffer of the key
- len – the length of the key
Returns: The value or null if not found
/**
* Get the best match from key in a byte buffer.
* The key is assumed to by ISO_8859_1 characters.
*
* @param b The buffer
* @param offset The offset within the buffer of the key
* @param len the length of the key
* @return The value or null if not found
*/
public V getBest(ByteBuffer b, int offset, int len);
public Set<String> keySet();
public boolean isFull();
public boolean isCaseInsensitive();
public void clear();
}