core/org.argeo.entity.api/src/org/argeo/entity/JcrName.java

   1 package org.argeo.entity;
   2
   3 import java.util.function.Supplier;
   4
   5 /** Can be applied to {@link Enum}s in order to generate prefixed names. */
   6 @FunctionalInterface
   7 public interface JcrName extends Supplier<String> {
   8         String name();
   9
  10         default String getPrefix() {
  11                 return null;
  12         }
  13
  14         default String getNamespace() {
  15                 return null;
  16         }
  17
  18         @Override
  19         default String get() {
  20                 String prefix = getPrefix();
  21                 return prefix != null ? prefix + ":" + name() : name();
  22         }
  23
  24         default String withNamespace() {
  25                 String namespace = getNamespace();
  26                 if (namespace == null)
  27                         throw new UnsupportedOperationException("No namespace is specified for " + getClass());
  28                 return "{" + namespace + "}" + name();
  29         }
  30 }