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Java™ Platform Standard Ed. 6 |
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java.lang.Object extended by java.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/interfaces inherited from interface java.util.Map |
|---|
Map.Entry<K,V> |
| Field Summary | |
|---|---|
protected Map<Object,Object> |
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<Map.Entry<Object,Object>> |
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<Object> |
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<Object> |
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 |
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protected Map<Object,Object> map
| Constructor Detail |
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public Attributes()
public Attributes(int size)
size - the initial number of attributespublic Attributes(Attributes attr)
attr - the specified Attributes| Method Detail |
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public Object get(Object name)
name - the attribute name
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)
name - the attribute namevalue - the attribute value
ClassCastException - if the name is not a Attributes.Name
or the value is not a Stringpublic 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)
name - attribute name
public boolean containsValue(Object value)
containsValue in interface Map<Object,Object>value - the attribute value
public boolean containsKey(Object name)
containsKey in interface Map<Object,Object>name - the attribute name
public void putAll(Map<?,?> attr)
attr - the Attributes to be stored in this map
ClassCastException - if attr is not an Attributespublic void clear()
public int size()
public boolean isEmpty()
public Set<Object> keySet()
public Collection<Object> values()
public Set<Map.Entry<Object,Object>> entrySet()
public boolean equals(Object o)
o - the Object to be compared
Object.hashCode(),
Hashtablepublic int hashCode()
Object.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.
Cloneable
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Java™ Platform Standard Ed. 6 |
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