List of usage examples for java.util Collection isEmpty
boolean isEmpty();
From source file:Main.java
public static boolean isValidate(Collection<?> collection) { return null != collection && !collection.isEmpty(); }
From source file:Main.java
public static final <T> boolean isEmpty(final Collection<T> collection) { return (collection == null) || collection.isEmpty(); }
From source file:Main.java
public static boolean isNotEmpty(Collection<?> collection) { return (collection != null) && !(collection.isEmpty()); }
From source file:Main.java
@SuppressWarnings("rawtypes") public static boolean isEmpty(Collection collection) { return (collection == null) || collection.isEmpty(); }
From source file:Main.java
/** * Returns true if the collection is null or 0-length. * * @param collection the collection to be examined * @return true if str collection null or zero length *//* w ww. j av a2 s .c om*/ public static boolean isEmpty(Collection<?> collection) { if (collection == null || collection.isEmpty() || collection.size() == 0) { return true; } else { return false; } }
From source file:Main.java
/** * Implementation of the OCL//from w ww .j a v a2 s .c om * <tt>Collection::isEmpty() : Boolean</tt> * operation. * * @param self the source collection * @return whether the collection does not have any elements */ public static boolean isEmpty(Collection<?> self) { return self.isEmpty(); }
From source file:Main.java
public static <T> T getFirstElement(Collection<T> collection) { if (collection == null || collection.isEmpty()) { return null; }//from w w w .jav a 2 s. c om return collection.iterator().next(); }
From source file:Main.java
/** * INTERNAL: Gets the first object in the collection. If the * collection is empty, null is returned. *//*from w w w. ja va 2 s. c o m*/ public static <T> T getFirst(Collection<T> coll) { return (coll == null) || coll.isEmpty() ? null : coll.iterator().next(); }
From source file:Main.java
public static boolean isEmpty(final Collection<?> collection) { return (collection == null) || collection.isEmpty(); }
From source file:Main.java
/** * Checks if a collection is null or empty * * @param collection - the collection// w ww .j ava 2 s . c o m * @return - if it is empty * @since 1.0 */ public static boolean isEmpty(Collection collection) { return collection == null || collection.isEmpty(); }