Ejemplo n.º 1
0
 public <A, Q extends SimpleExpression<A>> Collection<Predicate> list(
     ListPath<A, Q> expr, ListExpression<A, Q> other, A knownElement) {
   List<Predicate> rv = new ArrayList<Predicate>();
   rv.addAll(collection(expr, other, knownElement));
   rv.add(expr.get(0).eq(knownElement));
   return ImmutableList.copyOf(rv);
 }
Ejemplo n.º 2
0
  /**
   * Creates a Predicate from list of BooleanExpression predicates which represents all search
   * filters.
   *
   * @param config PaginationConfiguration data holding object
   * @return query to filter entities according pagination configuration data.
   */
  @SuppressWarnings({"rawtypes", "unchecked"})
  protected Predicate getPredicate(PaginationConfiguration config) {

    PathBuilder<T> entityPath = new PathBuilder(entityClass, getAliasName(entityClass));
    BooleanExpression predicate = null;

    Map<String, Object> filters = config.getFilters();
    if (filters != null) {
      // first we process nonstandard filters
      List<String> filtersToRemove = processNonStandardFilters(filters, entityPath);
      filters = removeUsedFilters(filtersToRemove, filters);
      if (!filters.isEmpty()) {
        for (Map.Entry<String, Object> entry : filters.entrySet()) {
          String key = entry.getKey();
          Object filter = entry.getValue();
          if (filter != null) {

            // if ranged search (from - to fields)
            if (key.contains("fromRange-")) {
              // CHECKSTYLE:OFF
              String parsedKey = key.substring(10);
              // CHECKSTYLE:ON
              if (filter instanceof Number) {
                NumberPath path = createNumberPath(entityPath, parsedKey, filter);
                predicate = and(predicate, path.goe((Number) filter));
              } else if (filter instanceof Date) {
                DatePath path = entityPath.getDate(parsedKey, Date.class);
                predicate = and(predicate, path.goe((Date) filter));
              }
            } else if (key.contains("toRange-")) {
              // CHECKSTYLE:OFF
              String parsedKey = key.substring(8);
              // CHECKSTYLE:ON
              if (filter instanceof Number) {
                NumberPath path = createNumberPath(entityPath, parsedKey, filter);
                predicate = and(predicate, path.loe((Number) filter));
              } else if (filter instanceof Date) {
                DatePath path = entityPath.getDate(parsedKey, Date.class);
                predicate = and(predicate, path.loe((Date) filter));
              }
            } else if (key.contains("list-")) {
              // CHECKSTYLE:OFF
              // if searching elements from list
              String parsedKey = key.substring(5);
              // CHECKSTYLE:ON
              ListPath path = entityPath.getList(parsedKey, filter.getClass());
              predicate = and(predicate, path.contains(filter));
            } else { // if not ranged search
              if (filter instanceof String) {
                StringPath path = entityPath.getString(key);
                String filterString = (String) filter;
                predicate = and(predicate, path.startsWithIgnoreCase(filterString));
              } else if (filter instanceof Date) {
                DatePath path = entityPath.getDate(key, Date.class);
                predicate = and(predicate, path.eq(filter));
              } else if (filter instanceof Number) {
                NumberPath path = createNumberPath(entityPath, key, filter);
                predicate = and(predicate, path.eq(filter));
              } else if (filter instanceof Boolean) {
                BooleanPath path = entityPath.getBoolean(key);
                predicate = and(predicate, path.eq((Boolean) filter));
              } else if (filter instanceof Enum) {
                EnumPath path = entityPath.getEnum(key, Enum.class);
                predicate = and(predicate, path.eq(filter));
              } else if (BaseEntity.class.isAssignableFrom(filter.getClass())) {
                PathBuilder path = entityPath.get(key);
                predicate = and(predicate, path.eq(filter));
              }
            }
          }
        }
      }
    }
    return predicate;
  }