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package javax.mail.search;
import javax.mail.Message;
/**
* This class implements the logical NEGATION operator.
*
* @author Bill Shannon
* @author John Mani
*/
public final class NotTerm extends SearchTerm {
/**
* The search term to negate.
*
* @serial
*/
private SearchTerm term;
private static final long serialVersionUID = 7152293214217310216L;
public NotTerm(SearchTerm t) {
term = t;
}
/**
* Return the term to negate.
*
* @return the Term
*/
public SearchTerm getTerm() {
return term;
}
/* The NOT operation */
@Override
public boolean match(Message msg) {
return !term.match(msg);
}
/**
* Equality comparison.
*/
@Override
public boolean equals(Object obj) {
if (!(obj instanceof NotTerm))
return false;
NotTerm nt = (NotTerm)obj;
return nt.term.equals(this.term);
}
/**
* Compute a hashCode for this object.
*/
@Override
public int hashCode() {
return term.hashCode() << 1;
}
}