Overview  Package   Class  Use  Deprecated  Index
Home >> All >> [ jsdsi overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

jsdsi
Class AclEntry  

java.lang.Object
  jsdsi.Obj
      jsdsi.AclEntry

---

public class AclEntry

extends Obj

An ACL entry that specifies a permission (the Tag) and a set of principals (the Subject) that may access the object protected by this entry's ACL.

Version:

$Revision: 1.2 $ $Date: 2003/04/22 21:37:44 $

---

Field Summary
private  Auth	auth           The permission of this ACL entry.
private  java.lang.String	comment           The comment of this AclEntry.
private  Subject	subject           The subject of this AclEntry.
private  Validity	validity           The validity of this AclEntry.

 

Constructor Summary

AclEntry(Subject s, Tag t, boolean p, Validity v, java.lang.String c)           Creates a new AclEntry from a given subject, tag, delegation bit, validity, and comment.

 

Method Summary
boolean	equals(java.lang.Object o)           Determine whether this Object is semantically equal to another Object.
java.lang.String	getComment()           Returns the comment of this AclEntry (may be null).
boolean	getPropagate()           Returns the delegation bit of this AclEntry's auth.
Subject	getSubject()           Returns the subject of this AclEntry.
Tag	getTag()           Returns the tag of this AclEntry's auth.
Validity	getValidity()           Returns the validity of this AclEntry (may be null).
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
(package private) static AclEntry	parseAclEntry(SexpList l)           Parses an AclEntry from a given SexpList.
SexpList	toSexp()           Returns an SexpList that represents this AclEntry.

 

Methods inherited from class jsdsi.Obj

parseObj, toByteArray, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

subject

private final Subject subject

The subject of this AclEntry.

---

auth

private final Auth auth

The permission of this ACL entry.

---

validity

private final Validity validity

The validity of this AclEntry.

---

comment

private final java.lang.String comment

The comment of this AclEntry.

Constructor Detail

AclEntry

public AclEntry(Subject s,
                Tag t,
                boolean p,
                Validity v,
                java.lang.String c)

Creates a new AclEntry from a given subject, tag, delegation bit, validity, and comment.

Method Detail

getSubject

public Subject getSubject()

Returns the subject of this AclEntry.

---

getTag

public Tag getTag()

Returns the tag of this AclEntry's auth.

---

getPropagate

public boolean getPropagate()

Returns the delegation bit of this AclEntry's auth.

---

getValidity

public Validity getValidity()

Returns the validity of this AclEntry (may be null).

---

getComment

public java.lang.String getComment()

Returns the comment of this AclEntry (may be null).

---

equals

public boolean equals(java.lang.Object o)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

Specified by:

equals in class Obj

---

hashCode

public int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

Specified by:

hashCode in class Obj

---

toSexp

public SexpList toSexp()

Returns an SexpList that represents this AclEntry.

Specified by:

toSexp in class Obj

---

parseAclEntry

static AclEntry parseAclEntry(SexpList l)
                       throws SexpParseException

Parses an AclEntry from a given SexpList.

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> [ jsdsi overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---