/**
* Returns the strategy applicable for the given class or <code>null</code> if no such strategy
* is found. A strategy that applies strictly to the given class is always preferable. If no
* such strategy is available then the range strategies are checked for applicability. Backup
* strategies, if applicable, are returned as a last resort.
*
* @param target to lookup strategy for
* @return the applicable strategy or null
*/
public S lookup(Class target) {
final S ss = this.strict.get(target);
if (ss != null) {
return ss; // found strict.
}
for (S rs : this.range) {
if (rs.appliesTo(target)) {
return rs; // found range.
}
}
if (this.backup != null) {
for (S bs : this.backup) {
if (bs.appliesTo(target)) {
return bs; // found backup.
}
}
}
return null;
}
