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

---

org.jboss.resource.connectionmanager
Class JBossManagedConnectionPool.SubjectCriKey  

java.lang.Object
  org.jboss.resource.connectionmanager.JBossManagedConnectionPool.SubjectCriKey

Enclosing class:

JBossManagedConnectionPool

---

private static class JBossManagedConnectionPool.SubjectCriKey

extends java.lang.Object

Pool by subject and criteria

---

Field Summary
private  java.lang.Object	cri           The connection request information
private static java.lang.Object	NOCRI           Identifies no connection request information
private static java.lang.Object	NOSUBJECT           Identifies no subject
private  boolean	separateNoTx           Separate no tx
private  java.lang.Object	subject           The subject

 

Constructor Summary
(package private)	JBossManagedConnectionPool.SubjectCriKey(javax.security.auth.Subject subject, javax.resource.spi.ConnectionRequestInfo cri, boolean separateNoTx)

 

Method Summary
boolean	equals(java.lang.Object obj)           Determine whether this Object is semantically equal to another Object.
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

NOSUBJECT

private static final java.lang.Object NOSUBJECT

Identifies no subject

---

NOCRI

private static final java.lang.Object NOCRI

Identifies no connection request information

---

subject

private final java.lang.Object subject

The subject

---

cri

private final java.lang.Object cri

The connection request information

---

separateNoTx

private boolean separateNoTx

Separate no tx

Constructor Detail

JBossManagedConnectionPool.SubjectCriKey

JBossManagedConnectionPool.SubjectCriKey(javax.security.auth.Subject subject,
                                         javax.resource.spi.ConnectionRequestInfo cri,
                                         boolean separateNoTx)

Method Detail

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)

---

equals

public boolean equals(java.lang.Object obj)

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.

---

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

---