org.glassfish.hk2.utilities.general.ThreadSpecificObject Maven / Gradle / Ivy
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package org.glassfish.hk2.utilities.general;
/**
* This ties the given object with the thread upon
* which this object is created
*
* This class can be used as the key in a hashSet if the
* incoming object can be used as the key in a hashSet
* @author jwells
*
*/
public class ThreadSpecificObject {
private final T incoming;
private final long tid;
private final int hash;
public ThreadSpecificObject(T incoming) {
this.incoming = incoming;
this.tid = Thread.currentThread().getId();
int hash = (incoming == null) ? 0 : incoming.hashCode();
hash ^= Long.valueOf(tid).hashCode();
this.hash = hash;
}
/**
* Gets the thread on which this object was created
* @return The thread on which this object was created
*/
public long getThreadIdentifier() {
return tid;
}
/**
* Gets the incoming object bound to the thread id
* @return The incoming object bound to the thread id
*/
public T getIncomingObject() {
return incoming;
}
@Override
public int hashCode() {
return hash;
}
@Override
public boolean equals(Object o) {
if (o == null) return false;
if (!(o instanceof ThreadSpecificObject)) return false;
ThreadSpecificObject other = (ThreadSpecificObject) o;
if (tid != other.tid) return false;
return GeneralUtilities.safeEquals(incoming, other.incoming);
}
}