Metadata implements CreativeCommons, Geographic, HttpHeaders,
        Message, ClimateForcast, TIFF, TikaMimeKeys,
        Serializable { public boolean isMultiValued(final Property property) { return metadata.get(property.getName()) != null && metadata.get(property.getName()).length > 1; } Metadata(); boolean isMultiValued(final Property property); boolean isMultiValued(final String name); String[] names(); String get(final String name); String get(Property property); Integer getInt(Property property); Date getDate(Property property); String[] getValues(final Property property); String[] getValues(final String name); void add(final String name, final String value); void add(final Property property, final String value); @SuppressWarnings("unchecked") void setAll(Properties properties); void set(String name, String value); void set(Property property, String value); void set(Property property, String[] values); void set(Property property, int value); void add(Property property, int value); int[] getIntValues(Property property); void set(Property property, double value); void set(Property property, Date date); void set(Property property, Calendar date); void remove(String name); int size(); int hashCode(); boolean equals(Object o); String toString();  }
@Test public void testIsMultiValued() { Metadata meta = new Metadata(); assertFalse(meta.isMultiValued("key")); meta.add("key", "value1"); assertFalse(meta.isMultiValued("key")); meta.add("key", "value2"); assertTrue(meta.isMultiValued("key")); }