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JavaTM 2 Platform Std. Ed. v1.4.2 |
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java.lang.Objectjava.util.jar.Attributes
The Attributes class maps Manifest attribute names to associated string values. Valid attribute names are case-insensitive, are restricted to the ASCII characters in the set [0-9a-zA-Z_-], and cannot exceed 70 characters in length. Attribute values can contain any characters and will be UTF8-encoded when written to the output stream. See the JAR File Specification for more information about valid attribute names and values.
Manifest| Nested Class Summary | |
static class |
Attributes.Name
The Attributes.Name class represents an attribute name stored in this Map. |
| Nested classes inherited from class java.util.Map |
Map.Entry |
| Field Summary | |
protected Map |
map
The attribute name-value mappings. |
| Constructor Summary | |
Attributes()
Constructs a new, empty Attributes object with default size. |
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Attributes(Attributes attr)
Constructs a new Attributes object with the same attribute name-value mappings as in the specified Attributes. |
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Attributes(int size)
Constructs a new, empty Attributes object with the specified initial size. |
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| Method Summary | |
void |
clear()
Removes all attributes from this Map. |
Object |
clone()
Returns a copy of the Attributes, implemented as follows: |
boolean |
containsKey(Object name)
Returns true if this Map contains the specified attribute name (key). |
boolean |
containsValue(Object value)
Returns true if this Map maps one or more attribute names (keys) to the specified value. |
Set |
entrySet()
Returns a Collection view of the attribute name-value mappings contained in this Map. |
boolean |
equals(Object o)
Compares the specified Attributes object with this Map for equality. |
Object |
get(Object name)
Returns the value of the specified attribute name, or null if the attribute name was not found. |
String |
getValue(Attributes.Name name)
Returns the value of the specified Attributes.Name, or null if the attribute was not found. |
String |
getValue(String name)
Returns the value of the specified attribute name, specified as a string, or null if the attribute was not found. |
int |
hashCode()
Returns the hash code value for this Map. |
boolean |
isEmpty()
Returns true if this Map contains no attributes. |
Set |
keySet()
Returns a Set view of the attribute names (keys) contained in this Map. |
Object |
put(Object name,
Object value)
Associates the specified value with the specified attribute name (key) in this Map. |
void |
putAll(Map attr)
Copies all of the attribute name-value mappings from the specified Attributes to this Map. |
String |
putValue(String name,
String value)
Associates the specified value with the specified attribute name, specified as a String. |
Object |
remove(Object name)
Removes the attribute with the specified name (key) from this Map. |
int |
size()
Returns the number of attributes in this Map. |
Collection |
values()
Returns a Collection view of the attribute values contained in this Map. |
| Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
protected Map map
| Constructor Detail |
public Attributes()
public Attributes(int size)
size - the initial number of attributespublic Attributes(Attributes attr)
attr - the specified Attributes| Method Detail |
public Object get(Object name)
get in interface Mapname - the attribute name
Map.containsKey(Object)public String getValue(String name)
This method is defined as:
return (String)get(new Attributes.Name((String)name));
name - the attribute name as a string
IllegalArgumentException - if the attribute name is invalidpublic String getValue(Attributes.Name name)
This method is defined as:
return (String)get(name);
name - the Attributes.Name object
public Object put(Object name,
Object value)
put in interface Mapname - the attribute namevalue - the attribute value
ClassCastException - if the name is not a Attributes.Name
or the value is not a String
public String putValue(String name,
String value)
This method is defined as:
return (String)put(new Attributes.Name(name), value);
name - the attribute name as a stringvalue - the attribute value
IllegalArgumentException - if the attribute name is invalidpublic Object remove(Object name)
remove in interface Mapname - attribute name
public boolean containsValue(Object value)
containsValue in interface Mapvalue - the attribute value
public boolean containsKey(Object name)
containsKey in interface Mapname - the attribute name
public void putAll(Map attr)
putAll in interface Mapattr - the Attributes to be stored in this map
ClassCastException - if attr is not an Attributespublic void clear()
clear in interface Mappublic int size()
size in interface Mappublic boolean isEmpty()
isEmpty in interface Mappublic Set keySet()
keySet in interface Mappublic Collection values()
values in interface Mappublic Set entrySet()
entrySet in interface Mappublic boolean equals(Object o)
equals in interface Mapequals in class Objecto - the Object to be compared
Object.hashCode(),
Hashtablepublic int hashCode()
hashCode in interface MaphashCode in class ObjectObject.equals(java.lang.Object),
Hashtablepublic Object clone()
public Object clone() { return new Attributes(this); }
Since the attribute names and values are themselves immutable,
the Attributes returned can be safely modified without affecting
the original.
clone in class ObjectCloneable
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JavaTM 2 Platform Std. Ed. v1.4.2 |
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Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.