// Create the Predicates
Predicate teamName = new XPathPredicate( "./name" );
Predicate coachFirstName = new XPathPredicate( "./coach/firstName" );
Predicate coachLastName = new XPathPredicate( "./coach/lastName" );
// Create a predicate that rejects all teams with name Dodgers
Map variables = new HashMap();
variables.put( "name", "Dodgers" );
Predicate noDodgers = new NotPredicate( new XPathPredicate( "./name[. = $name]", variables ) );
// Tie three Predicates together into an AllPredicate
Predicate[] predicateArray = new Predicate[] { teamName, coachFirstName, coachLastName, noDodgers };
AllPredicate valuePredicate = new AllPredicate( predicateArray );
// Decorate a HashMap with a predicate on the value
teamMap = PredicatedMap.decorate( new HashMap(), null, valuePredicate);
// Manufacture some teams
Team redSox = new Team( "Red Sox", new Coach( "Patrick", "Moloney") );
Team yankees= new Team( "Yankees", new Coach( "David", "McGarry") );
Team dodgers = new Team( "Dodgers", new Coach( "Nick", "Taylor") );
Team twins = new Team( null, new Coach( "Patrick", "Moloney") );
Team braves = new Team( "Braves", null );
// The follow put calls should work fine
teamMap.put( "RedSox", redSox );
teamMap.put( "Yankees", yankees );
// This should fail because we have a predicate checking for "Dodgers" and rejecting
try {
teamMap.put( "Dodgers", dodgers );
} catch( IllegalArgumentException iae ) {
System.out.println( "Dodgers put failed, as expected");
}
// This put should fail because the team name is null
try {
teamMap.put( "Twins", twins);
} catch( IllegalArgumentException iae ) {
System.out.println( "Twins put failed, as expected" );
}
// This put should fail because the coach is null
try {
teamMap.put( "Braves", braves);
} catch( IllegalArgumentException iae ) {
System.out.println( "Braves put failed, as expected" );
}
