Package org.forgerock.opendj.ldap

Interface Attribute

All Superinterfaces:
Collection<ByteString>, Iterable<ByteString>
All Known Implementing Classes:
AbstractAttribute, CompactAttribute, EntryHistoricalAttribute, LinkedAttribute
public interface Attribute extends Collection<ByteString>
An attribute, comprising of an attribute description and zero or more attribute values.

Any methods which perform comparisons between attribute values use the equality matching rule associated with the attribute description.

Any methods which accept Object based attribute values convert the attribute values to instances of ByteString using ByteString.valueOfObject(Object).

This class is conceptually a mathematical Set<ByteString>.
However, this is declared to implement Collection<ByteString> because java's Set.equals(Object) requires that all sets should be equal with any other set. This is impossible for an attribute because it is testing attribute description's equality.

  • Method Summary

    Modifier and Type
    Method
    Description
    default boolean
    add(Object... values)
    Adds all of the provided attribute values to this attribute if they are not already present (optional operation).
    default boolean
    add(ByteString value)
    Adds value to this attribute if it is not already present (optional operation).
    default boolean
    addAll(Collection<? extends ByteString> values)
    Adds all of the attribute values contained in values to this attribute if they are not already present (optional operation).
    default <T> boolean
    addAll(Collection<T> values, Collection<? super T> duplicateValues)
    Adds all of the attribute values contained in values to this attribute if they are not already present (optional operation).
    default void
    clear()
    Removes all of the attribute values from this attribute (optional operation).
    boolean
    contains(Object value)
    Returns true if this attribute contains value.
    boolean
    containsAll(Collection<?> values)
    Returns true if this attribute contains all of the attribute values contained in values.
    boolean
    equals(Object object)
    Returns true if object is an attribute which is equal to this attribute.
    ByteString
    firstValue()
    Returns the first attribute value in this attribute.
    default String
    firstValueAsString()
    Returns the first attribute value in this attribute decoded as a UTF-8 string.
    void
    forEachNormalizedValue(BiConsumer<? super ByteString,? super ByteString> action)
    Performs the provided action for each value and its associated normalized value in this attribute.
    AttributeDescription
    getAttributeDescription()
    Returns the attribute description of this attribute, which includes its attribute type and any options.
    default String
    getAttributeDescriptionAsString()
    Returns the string representation of the attribute description of this attribute, which includes its attribute type and any options.
    int
    hashCode()
    Returns the hash code for this attribute.
    boolean
    isEmpty()
    Returns true if this attribute contains no attribute values.
    default boolean
    isReal()
    Indicates whether this is a real attribute (persisted) rather than a virtual attribute (dynamically computed).
    boolean
    isVirtual()
    Indicates whether this is a virtual attribute (dynamically computed) rather than a real attribute (persisted).
    Iterator<ByteString>
    iterator()
    Returns an iterator over the attribute values in this attribute.
    boolean
    matchesAnyNormalizedValue(Predicate<? super ByteString> predicate)
    Returns true if any values in this attribute match the provided predicate.
    boolean
    matchesAnyNormalizedValue(Map<ByteString,ByteString> normalizedValues)
    Returns true if any values in this attribute match at least one of the values in the provided map.
    AttributeParser
    parse()
    Returns a parser for this attribute which can be used for decoding values as different types of object.
    default Attribute
    put(Object... values)
    Adds all of the provided attribute values to this attribute if they are not already present (optional operation).
    default Attribute
    put(ByteString value)
    Adds value to this attribute if it is not already present (optional operation).
    default boolean
    remove(Object value)
    Removes value from this attribute if it is present (optional operation).
    default boolean
    removeAll(Collection<?> values)
    Removes all of the attribute values contained in values from this attribute if they are present (optional operation).
    default <T> boolean
    removeAll(Collection<T> values, Collection<? super T> missingValues)
    Removes all of the attribute values contained in values from this attribute if they are present (optional operation).
    default boolean
    retainAll(Collection<?> values)
    Retains only the attribute values in this attribute which are contained in values (optional operation).
    default <T> boolean
    retainAll(Collection<T> values, Collection<? super T> missingValues)
    Retains only the attribute values in this attribute which are contained in values (optional operation).
    int
    size()
    Returns the number of attribute values in this attribute.
    ByteString[]
    toArray()
    Returns an array containing all of the attribute values contained in this attribute.
    <T> T[]
    toArray(T[] array)
    Returns an array containing all of the attribute values in this attribute; the runtime type of the returned array is that of the specified array.
    String
    toString()
    Returns a string representation of this attribute.

    Methods inherited from interface java.util.Collection

    parallelStream, removeIf, spliterator, stream, toArray

    Methods inherited from interface java.lang.Iterable

    forEach

  • Method Details

    • add

      default boolean add(ByteString value)
      Adds value to this attribute if it is not already present (optional operation). If this attribute already contains value, the call leaves the attribute unchanged and returns false.
      Specified by:
      add in interface Collection<ByteString>
      Parameters:
      value - The attribute value to be added to this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If value was null.

    • put

      default Attribute put(ByteString value)
      Adds value to this attribute if it is not already present (optional operation).

      If this attribute already contains value, the call leaves the attribute unchanged. This method is equivalent to add(ByteString) except that it is designed for chaining by returning a reference to the updated attribute.

      Parameters:
      value - The attribute value to be added to this attribute.
      Returns:
      This attribute.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If value was null.

    • add

      default boolean add(Object... values)
      Adds all of the provided attribute values to this attribute if they are not already present (optional operation).

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      Parameters:
      values - The attribute values to be added to this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If values was null.

    • put

      default Attribute put(Object... values)
      Adds all of the provided attribute values to this attribute if they are not already present (optional operation).

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      This method is equivalent to add(Object...) except that it is designed for chaining by returning a reference to the updated attribute.

      Parameters:
      values - The attribute values to be added to this attribute.
      Returns:
      This attribute.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If values was null.

    • addAll

      default boolean addAll(Collection<? extends ByteString> values)
      Adds all of the attribute values contained in values to this attribute if they are not already present (optional operation).

      An invocation of this method is equivalent to: 

       attribute.addAll(values, null);
      Specified by:
      addAll in interface Collection<ByteString>
      Parameters:
      values - The attribute values to be added to this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If values was null.

    • addAll

      default <T> boolean addAll(Collection<T> values, Collection<? super T> duplicateValues)
      Adds all of the attribute values contained in values to this attribute if they are not already present (optional operation). Any attribute values which are already present will be added to duplicateValues if specified.

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      Type Parameters:
      T - The type of the attribute value objects being added.
      Parameters:
      values - The attribute values to be added to this attribute.
      duplicateValues - A collection into which duplicate values will be added, or null if duplicate values should not be saved.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support addition of attribute values.
      NullPointerException - If values was null.

    • clear

      default void clear()
      Removes all of the attribute values from this attribute (optional operation). This attribute will be empty after this call returns.
      Specified by:
      clear in interface Collection<ByteString>
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.

    • contains

      boolean contains(Object value)
      Returns true if this attribute contains value.

      If value is not an instance of ByteString then it will be converted using the ByteString.valueOfObject(Object) method.

      Specified by:
      contains in interface Collection<ByteString>
      Parameters:
      value - The attribute value whose presence in this attribute is to be tested.
      Returns:
      true if this attribute contains value, or false if not.
      Throws:
      NullPointerException - If value was null.

    • containsAll

      boolean containsAll(Collection<?> values)
      Returns true if this attribute contains all of the attribute values contained in values.

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      Specified by:
      containsAll in interface Collection<ByteString>
      Parameters:
      values - The attribute values whose presence in this attribute is to be tested.
      Returns:
      true if this attribute contains all of the attribute values contained in values, or false if not.
      Throws:
      NullPointerException - If values was null.

    • equals

      boolean equals(Object object)
      Returns true if object is an attribute which is equal to this attribute. Two attributes are considered equal if their attribute descriptions are equal, they both have the same number of attribute values, and every attribute value contained in the first attribute is also contained in the second attribute.
      Specified by:
      equals in interface Collection<ByteString>
      Overrides:
      equals in class Object
      Parameters:
      object - The object to be tested for equality with this attribute.
      Returns:
      true if object is an attribute which is equal to this attribute, or false if not.

    • firstValue

      ByteString firstValue()
      Returns the first attribute value in this attribute.
      Returns:
      The first attribute value in this attribute.
      Throws:
      NoSuchElementException - If this attribute is empty.

    • firstValueAsString

      default String firstValueAsString()
      Returns the first attribute value in this attribute decoded as a UTF-8 string.
      Returns:
      The first attribute value in this attribute decoded as a UTF-8 string.
      Throws:
      NoSuchElementException - If this attribute is empty.

    • forEachNormalizedValue

      void forEachNormalizedValue(BiConsumer<? super ByteString,? super ByteString> action)
      Performs the provided action for each value and its associated normalized value in this attribute.
      Parameters:
      action - The action to perform which will be passed the normalized value as the first parameter and the user provided value as the second parameter.

    • getAttributeDescription

      AttributeDescription getAttributeDescription()
      Returns the attribute description of this attribute, which includes its attribute type and any options.
      Returns:
      The attribute description.

    • getAttributeDescriptionAsString

      default String getAttributeDescriptionAsString()
      Returns the string representation of the attribute description of this attribute, which includes its attribute type and any options.
      Returns:
      The string representation of the attribute description.

    • hashCode

      int hashCode()
      Returns the hash code for this attribute. It will be calculated as the sum of the hash codes of the attribute description and all of the attribute values.
      Specified by:
      hashCode in interface Collection<ByteString>
      Overrides:
      hashCode in class Object
      Returns:
      The hash code for this attribute.

    • isEmpty

      boolean isEmpty()
      Returns true if this attribute contains no attribute values.
      Specified by:
      isEmpty in interface Collection<ByteString>
      Returns:
      true if this attribute contains no attribute values.

    • isReal

      default boolean isReal()
      Indicates whether this is a real attribute (persisted) rather than a virtual attribute (dynamically computed).
      Returns:
      true if this is a real attribute.

    • isVirtual

      boolean isVirtual()
      Indicates whether this is a virtual attribute (dynamically computed) rather than a real attribute (persisted).
      Returns:
      true if this is a virtual attribute.

    • iterator

      Iterator<ByteString> iterator()
      Returns an iterator over the attribute values in this attribute. The attribute values are returned in no particular order, unless the implementation of this attribute provides such a guarantee.
      Specified by:
      iterator in interface Collection<ByteString>
      Specified by:
      iterator in interface Iterable<ByteString>
      Returns:
      An iterator over the attribute values in this attribute.

    • matchesAnyNormalizedValue

      boolean matchesAnyNormalizedValue(Map<ByteString,ByteString> normalizedValues)
      Returns true if any values in this attribute match at least one of the values in the provided map. Returns false if this attribute is empty or if the provided map is empty. The map elements are mappings from normalized values to their corresponding values, where the normalized values must have been normalized according to this attribute's equality matching rule.

      NOTE: this method returns true if the intersection of the normalized values in this attribute and the normalized values of the provided map is not empty.

      Parameters:
      normalizedValues - The map whose elements are mappings from normalized values to their corresponding values.
      Returns:
      true if any values in this attribute are contained in the provided map.

    • matchesAnyNormalizedValue

      boolean matchesAnyNormalizedValue(Predicate<? super ByteString> predicate)
      Returns true if any values in this attribute match the provided predicate. Returns false if this attribute is empty.
      Parameters:
      predicate - The predicate which will be passed the normalized value as the first parameter and the user provided value as the second parameter.
      Returns:
      true if any values in this attribute match the provided predicate.

    • parse

      AttributeParser parse()
      Returns a parser for this attribute which can be used for decoding values as different types of object.
      Returns:
      A parser for this attribute.

    • remove

      default boolean remove(Object value)
      Removes value from this attribute if it is present (optional operation). If this attribute does not contain value, the call leaves the attribute unchanged and returns false.

      If value is not an instance of ByteString then it will be converted using the ByteString.valueOfObject(Object) method.

      Specified by:
      remove in interface Collection<ByteString>
      Parameters:
      value - The attribute value to be removed from this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.
      NullPointerException - If value was null.

    • removeAll

      default boolean removeAll(Collection<?> values)
      Removes all of the attribute values contained in values from this attribute if they are present (optional operation).

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      An invocation of this method is equivalent to: 

       attribute.removeAll(values, null);
      Specified by:
      removeAll in interface Collection<ByteString>
      Parameters:
      values - The attribute values to be removed from this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.
      NullPointerException - If values was null.

    • removeAll

      default <T> boolean removeAll(Collection<T> values, Collection<? super T> missingValues)
      Removes all of the attribute values contained in values from this attribute if they are present (optional operation). Any attribute values which are not already present will be added to missingValues if specified.

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      Type Parameters:
      T - The type of the attribute value objects being removed.
      Parameters:
      values - The attribute values to be removed from this attribute.
      missingValues - A collection into which missing values will be added, or null if missing values should not be saved.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.
      NullPointerException - If values was null.

    • retainAll

      default boolean retainAll(Collection<?> values)
      Retains only the attribute values in this attribute which are contained in values (optional operation).

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      An invocation of this method is equivalent to: 

       attribute.retainAll(values, null);
      Specified by:
      retainAll in interface Collection<ByteString>
      Parameters:
      values - The attribute values to be retained in this attribute.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.
      NullPointerException - If values was null.

    • retainAll

      default <T> boolean retainAll(Collection<T> values, Collection<? super T> missingValues)
      Retains only the attribute values in this attribute which are contained in values (optional operation). Any attribute values which are not already present will be added to missingValues if specified.

      Any attribute values which are not instances of ByteString will be converted using the ByteString.valueOfObject(Object) method.

      Type Parameters:
      T - The type of the attribute value objects being retained.
      Parameters:
      values - The attribute values to be retained in this attribute.
      missingValues - A collection into which missing values will be added, or null if missing values should not be saved.
      Returns:
      true if this attribute changed as a result of this call.
      Throws:
      UnsupportedOperationException - If this attribute does not support removal of attribute values.
      NullPointerException - If values was null.

    • size

      int size()
      Returns the number of attribute values in this attribute.
      Specified by:
      size in interface Collection<ByteString>
      Returns:
      The number of attribute values in this attribute.

    • toArray

      ByteString[] toArray()
      Returns an array containing all of the attribute values contained in this attribute.

      If this attribute makes any guarantees as to what order its attribute values are returned by its iterator, this method must return the attribute values in the same order.

      The returned array will be "safe" in that no references to it are maintained by this attribute. The caller is thus free to modify the returned array.

      Specified by:
      toArray in interface Collection<ByteString>
      Returns:
      An array containing all of the attribute values contained in this attribute.

    • toArray

      <T> T[] toArray(T[] array)
      Returns an array containing all of the attribute values in this attribute; the runtime type of the returned array is that of the specified array.

      If the set fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this attribute. If this attribute fits in the specified array with room to spare (i.e., the array has more elements than this attribute), the elements in the array immediately following the end of the set is set to null.

      If this attribute makes any guarantees as to what order its attribute values are returned by its iterator, this method must return the attribute values in the same order.

      Specified by:
      toArray in interface Collection<ByteString>
      Type Parameters:
      T - The type of elements contained in array.
      Parameters:
      array - An array into which the elements of this attribute should be put.
      Returns:
      An array containing all of the attribute values contained in this attribute.
      Throws:
      ArrayStoreException - If the runtime type of array is not a supertype of ByteString.
      NullPointerException - If array was null.

    • toString

      String toString()
      Returns a string representation of this attribute.
      Overrides:
      toString in class Object
      Returns:
      The string representation of this attribute.