org.eclipse.jetty.util
类 StringMap

java.lang.Object
  java.util.AbstractMap
      org.eclipse.jetty.util.StringMap

所有已实现的接口：

Externalizable, Serializable, Map

public class StringMap
extends AbstractMap
implements Externalizable

Map implementation Optimized for Strings keys.. This String Map has been optimized for mapping small sets of Strings where the most frequently accessed Strings have been put to the map first. It also has the benefit that it can look up entries by substring or sections of char and byte arrays. This can prevent many String objects from being created just to look up in the map. This map is NOT synchronized.

另请参见：

序列化表格

嵌套类摘要

从类 java.util.AbstractMap 继承的嵌套类/接口

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

从接口 java.util.Map 继承的嵌套类/接口

Map.Entry<K,V>

字段摘要

protected static int	__HASH_WIDTH
protected HashSet	_entrySet
protected boolean	_ignoreCase
protected org.eclipse.jetty.util.StringMap.NullEntry	_nullEntry
protected Object	_nullValue
protected org.eclipse.jetty.util.StringMap.Node	_root
protected Set	_umEntrySet
protected int	_width
static boolean	CASE_INSENSTIVE

构造方法摘要

StringMap()
Constructor.

StringMap(boolean ignoreCase)
Constructor.

StringMap(boolean ignoreCase, int width)
Constructor.

方法摘要

void	clear()
boolean	containsKey(Object key)
Set	entrySet()
Object	get(Object key)
Object	get(String key)
Map.Entry	getBestEntry(byte[] key, int offset, int maxLength) Get a map entry by byte array key, using as much of the passed key as needed for a match.
Map.Entry	getEntry(char[] key, int offset, int length) Get a map entry by char array key.
Map.Entry	getEntry(String key, int offset, int length) Get a map entry by substring key.
int	getWidth()
boolean	isEmpty()
boolean	isIgnoreCase()
Object	put(Object key, Object value)
Object	put(String key, Object value)
void	readExternal(ObjectInput in)
Object	remove(Object key)
Object	remove(String key)
void	setIgnoreCase(boolean ic) Set the ignoreCase attribute.
void	setWidth(int width) Set the hash width.
int	size()
void	writeExternal(ObjectOutput out)

从类 java.util.AbstractMap 继承的方法

clone, containsValue, equals, hashCode, keySet, putAll, toString, values

从类 java.lang.Object 继承的方法

finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细信息

CASE_INSENSTIVE

public static final boolean CASE_INSENSTIVE

另请参见：

常量字段值

__HASH_WIDTH

protected static final int __HASH_WIDTH

另请参见：

常量字段值

_width

protected int _width

_root

protected org.eclipse.jetty.util.StringMap.Node _root

_ignoreCase

protected boolean _ignoreCase

_nullEntry

protected org.eclipse.jetty.util.StringMap.NullEntry _nullEntry

_nullValue

protected Object _nullValue

_entrySet

protected HashSet _entrySet

_umEntrySet

protected Set _umEntrySet

构造方法详细信息

StringMap

public StringMap()

Constructor.

StringMap

public StringMap(boolean ignoreCase)

Constructor.

参数：

ignoreCase -

StringMap

public StringMap(boolean ignoreCase,
                 int width)

Constructor.

参数：

ignoreCase -

width - Width of hash tables, larger values are faster but use more memory.

方法详细信息

setIgnoreCase

public void setIgnoreCase(boolean ic)

Set the ignoreCase attribute.

参数：

ic - If true, the map is case insensitive for keys.

isIgnoreCase

public boolean isIgnoreCase()

setWidth

public void setWidth(int width)

Set the hash width.

参数：

width - Width of hash tables, larger values are faster but use more memory.

getWidth

public int getWidth()

put

public Object put(Object key,
                  Object value)

指定者：

接口 Map 中的 put

覆盖：

类 AbstractMap 中的 put

put

public Object put(String key,
                  Object value)

get

public Object get(Object key)

指定者：

接口 Map 中的 get

覆盖：

类 AbstractMap 中的 get

get

public Object get(String key)

getEntry

public Map.Entry getEntry(String key,
                          int offset,
                          int length)

Get a map entry by substring key.

参数：

key - String containing the key

offset - Offset of the key within the String.

length - The length of the key

返回：

The Map.Entry for the key or null if the key is not in the map.

getEntry

public Map.Entry getEntry(char[] key,
                          int offset,
                          int length)

Get a map entry by char array key.

参数：

key - char array containing the key

offset - Offset of the key within the array.

length - The length of the key

返回：

The Map.Entry for the key or null if the key is not in the map.

getBestEntry

public Map.Entry getBestEntry(byte[] key,
                              int offset,
                              int maxLength)

Get a map entry by byte array key, using as much of the passed key as needed for a match. A simple 8859-1 byte to char mapping is assumed.

参数：

key - char array containing the key

offset - Offset of the key within the array.

maxLength - The length of the key

返回：

The Map.Entry for the key or null if the key is not in the map.

remove

public Object remove(Object key)

指定者：

接口 Map 中的 remove

覆盖：

类 AbstractMap 中的 remove

remove

public Object remove(String key)

entrySet

public Set entrySet()

指定者：

接口 Map 中的 entrySet

指定者：

类 AbstractMap 中的 entrySet

size

public int size()

指定者：

接口 Map 中的 size

覆盖：

类 AbstractMap 中的 size

isEmpty

public boolean isEmpty()

指定者：

接口 Map 中的 isEmpty

覆盖：

类 AbstractMap 中的 isEmpty

containsKey

public boolean containsKey(Object key)

指定者：

接口 Map 中的 containsKey

覆盖：

类 AbstractMap 中的 containsKey

clear

public void clear()

指定者：

接口 Map 中的 clear

覆盖：

类 AbstractMap 中的 clear

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

指定者：

接口 Externalizable 中的 writeExternal

抛出：

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

指定者：

接口 Externalizable 中的 readExternal

抛出：

IOException

ClassNotFoundException