1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/* Glazed Lists (c) 2003-2006 */
/* http://publicobject.com/glazedlists/ publicobject.com,*/
/* O'Dell Engineering Ltd.*/
package ca.odell.glazedlists.impl.matchers;
import ca.odell.glazedlists.matchers.Matcher;
/**
* A {@link Matcher} implementation that matches String objects if they are
* non-null and non-empty. Use {@link #getInstance()} to obtain a singleton
* instance.
*
* James Lemieux
*/
public class NonNullAndNonEmptyStringMatcher implements Matcher<String> {
/** Singleton instance of NonNullAndNonEmptyStringMatcher. */
private static final Matcher<String> INSTANCE = new NonNullAndNonEmptyStringMatcher();
/**
* Return a singleton instance.
*/
public static Matcher<String> getInstance() {
return INSTANCE;
}
/** {@inheritDoc} */
public boolean matches(String item) {
return item != null && item.length() > 0;
}
}
|
