IT. Expert System.

Java Standard Edition (SE)

HashAttributeSet


javax.print.attribute

Class HashAttributeSet

    • Constructor Summary

      Constructors 
      Modifier Constructor and Description
        HashAttributeSet()
      Construct a new, empty attribute set.
        HashAttributeSet(Attribute attribute)
      Construct a new attribute set, initially populated with the given attribute.
        HashAttributeSet(Attribute[] attributes)
      Construct a new attribute set, initially populated with the values from the given array.
      protected HashAttributeSet(Attribute[] attributes, Class<?> interfaceName)
      Construct a new attribute set, where the members of the attribute set are restricted to the given interface.
      protected HashAttributeSet(Attribute attribute, Class<?> interfaceName)
      Construct a new attribute set, initially populated with the given attribute, where the members of the attribute set are restricted to the given interface.
        HashAttributeSet(AttributeSet attributes)
      Construct a new attribute set, initially populated with the values from the given set.
      protected HashAttributeSet(AttributeSet attributes, Class<?> interfaceName)
      Construct a new attribute set, initially populated with the values from the given set where the members of the attribute set are restricted to the given interface.
      protected HashAttributeSet(Class<?> interfaceName)
      Construct a new, empty attribute set, where the members of the attribute set are restricted to the given interface.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      boolean add(Attribute attribute)
      Adds the specified attribute to this attribute set if it is not already present, first removing any existing in the same attribute category as the specified attribute value.
      boolean addAll(AttributeSet attributes)
      Adds all of the elements in the specified set to this attribute.
      void clear()
      Removes all attributes from this attribute set.
      boolean containsKey(Class<?> category)
      Returns true if this attribute set contains an attribute for the specified category.
      boolean containsValue(Attribute attribute)
      Returns true if this attribute set contains the given attribute.
      boolean equals(Object object)
      Compares the specified object with this attribute set for equality.
      Attribute get(Class<?> category)
      Returns the attribute value which this attribute set contains in the given attribute category.
      int hashCode()
      Returns the hash code value for this attribute set.
      boolean isEmpty()
      Returns true if this attribute set contains no attributes.
      boolean remove(Attribute attribute)
      Removes the specified attribute from this attribute set if present.
      boolean remove(Class<?> category)
      Removes any attribute for this category from this attribute set if present.
      int size()
      Returns the number of attributes in this attribute set.
      Attribute[] toArray()
      Returns an array of the attributes contained in this set.
    • Constructor Detail

      • HashAttributeSet

        public HashAttributeSet()
        Construct a new, empty attribute set.
      • HashAttributeSet

        public HashAttributeSet(Attribute attribute)
        Construct a new attribute set, initially populated with the given attribute.
        Parameters:
        attribute - Attribute value to add to the set.
        Throws:
        NullPointerException - (unchecked exception) Thrown if attribute is null.
      • HashAttributeSet

        public HashAttributeSet(Attribute[] attributes)
        Construct a new attribute set, initially populated with the values from the given array. The new attribute set is populated by adding the elements of attributes array to the set in sequence, starting at index 0. Thus, later array elements may replace earlier array elements if the array contains duplicate attribute values or attribute categories.
        Parameters:
        attributes - Array of attribute values to add to the set. If null, an empty attribute set is constructed.
        Throws:
        NullPointerException - (unchecked exception) Thrown if any element of attributes is null.
      • HashAttributeSet

        public HashAttributeSet(AttributeSet attributes)
        Construct a new attribute set, initially populated with the values from the given set.
        Parameters:
        attributes - Set of attributes from which to initialise this set. If null, an empty attribute set is constructed.
      • HashAttributeSet

        protected HashAttributeSet(Class<?> interfaceName)
        Construct a new, empty attribute set, where the members of the attribute set are restricted to the given interface.
        Parameters:
        interfaceName - The interface of which all members of this attribute set must be an instance. It is assumed to be interface Attribute or a subinterface thereof.
        Throws:
        NullPointerException - if interfaceName is null.
      • HashAttributeSet

        protected HashAttributeSet(Attribute attribute,
                                   Class<?> interfaceName)
        Construct a new attribute set, initially populated with the given attribute, where the members of the attribute set are restricted to the given interface.
        Parameters:
        attribute - Attribute value to add to the set.
        interfaceName - The interface of which all members of this attribute set must be an instance. It is assumed to be interface Attribute or a subinterface thereof.
        Throws:
        NullPointerException - (unchecked exception) Thrown if attribute is null.
        NullPointerException - if interfaceName is null.
        ClassCastException - (unchecked exception) Thrown if attribute is not an instance of interfaceName.
      • HashAttributeSet

        protected HashAttributeSet(Attribute[] attributes,
                                   Class<?> interfaceName)
        Construct a new attribute set, where the members of the attribute set are restricted to the given interface. The new attribute set is populated by adding the elements of attributes array to the set in sequence, starting at index 0. Thus, later array elements may replace earlier array elements if the array contains duplicate attribute values or attribute categories.
        Parameters:
        attributes - Array of attribute values to add to the set. If null, an empty attribute set is constructed.
        interfaceName - The interface of which all members of this attribute set must be an instance. It is assumed to be interface Attribute or a subinterface thereof.
        Throws:
        NullPointerException - (unchecked exception) Thrown if any element of attributes is null.
        NullPointerException - if interfaceName is null.
        ClassCastException - (unchecked exception) Thrown if any element of attributes is not an instance of interfaceName.
      • HashAttributeSet

        protected HashAttributeSet(AttributeSet attributes,
                                   Class<?> interfaceName)
        Construct a new attribute set, initially populated with the values from the given set where the members of the attribute set are restricted to the given interface.
        Parameters:
        attributes - set of attribute values to initialise the set. If null, an empty attribute set is constructed.
        interfaceName - The interface of which all members of this attribute set must be an instance. It is assumed to be interface Attribute or a subinterface thereof.
        Throws:
        ClassCastException - (unchecked exception) Thrown if any element of attributes is not an instance of interfaceName.
    • Method Detail

      • get

        public Attribute get(Class<?> category)
        Returns the attribute value which this attribute set contains in the given attribute category. Returns null if this attribute set does not contain any attribute value in the given attribute category.
        Specified by:
        get in interface AttributeSet
        Parameters:
        category - Attribute category whose associated attribute value is to be returned. It must be a Class that implements interface Attribute.
        Returns:
        The attribute value in the given attribute category contained in this attribute set, or null if this attribute set does not contain any attribute value in the given attribute category.
        Throws:
        NullPointerException - (unchecked exception) Thrown if the category is null.
        ClassCastException - (unchecked exception) Thrown if the category is not a Class that implements interface Attribute.
      • add

        public boolean add(Attribute attribute)
        Adds the specified attribute to this attribute set if it is not already present, first removing any existing in the same attribute category as the specified attribute value.
        Specified by:
        add in interface AttributeSet
        Parameters:
        attribute - Attribute value to be added to this attribute set.
        Returns:
        true if this attribute set changed as a result of the call, i.e., the given attribute value was not already a member of this attribute set.
        Throws:
        NullPointerException - (unchecked exception) Thrown if the attribute is null.
        UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support the add() operation.
      • remove

        public boolean remove(Class<?> category)
        Removes any attribute for this category from this attribute set if present. If category is null, then remove() does nothing and returns false.
        Specified by:
        remove in interface AttributeSet
        Parameters:
        category - Attribute category to be removed from this attribute set.
        Returns:
        true if this attribute set changed as a result of the call, i.e., the given attribute category had been a member of this attribute set.
        Throws:
        UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support the remove() operation.
      • remove

        public boolean remove(Attribute attribute)
        Removes the specified attribute from this attribute set if present. If attribute is null, then remove() does nothing and returns false.
        Specified by:
        remove in interface AttributeSet
        Parameters:
        attribute - Attribute value to be removed from this attribute set.
        Returns:
        true if this attribute set changed as a result of the call, i.e., the given attribute value had been a member of this attribute set.
        Throws:
        UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support the remove() operation.
      • containsKey

        public boolean containsKey(Class<?> category)
        Returns true if this attribute set contains an attribute for the specified category.
        Specified by:
        containsKey in interface AttributeSet
        Parameters:
        category - whose presence in this attribute set is to be tested.
        Returns:
        true if this attribute set contains an attribute value for the specified category.
      • containsValue

        public boolean containsValue(Attribute attribute)
        Returns true if this attribute set contains the given attribute.
        Specified by:
        containsValue in interface AttributeSet
        Parameters:
        attribute - value whose presence in this attribute set is to be tested.
        Returns:
        true if this attribute set contains the given attribute value.
      • addAll

        public boolean addAll(AttributeSet attributes)
        Adds all of the elements in the specified set to this attribute. The outcome is the same as if the add(Attribute) operation had been applied to this attribute set successively with each element from the specified set. The behavior of the addAll(AttributeSet) operation is unspecified if the specified set is modified while the operation is in progress.

        If the addAll(AttributeSet) operation throws an exception, the effect on this attribute set's state is implementation dependent; elements from the specified set before the point of the exception may or may not have been added to this attribute set.

        Specified by:
        addAll in interface AttributeSet
        Parameters:
        attributes - whose elements are to be added to this attribute set.
        Returns:
        true if this attribute set changed as a result of the call.
        Throws:
        UnmodifiableSetException - (Unchecked exception) Thrown if this attribute set does not support the addAll(AttributeSet) method.
        NullPointerException - (Unchecked exception) Thrown if some element in the specified set is null, or the set is null.
        See Also:
        add(Attribute)
      • size

        public int size()
        Returns the number of attributes in this attribute set. If this attribute set contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.
        Specified by:
        size in interface AttributeSet
        Returns:
        The number of attributes in this attribute set.
      • toArray

        public Attribute[] toArray()
        Description copied from interface: AttributeSet
        Returns an array of the attributes contained in this set.
        Specified by:
        toArray in interface AttributeSet
        Returns:
        the Attributes contained in this set as an array, zero length if the AttributeSet is empty.
      • clear

        public void clear()
        Removes all attributes from this attribute set.
        Specified by:
        clear in interface AttributeSet
        Throws:
        UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support the clear() operation.
      • isEmpty

        public boolean isEmpty()
        Returns true if this attribute set contains no attributes.
        Specified by:
        isEmpty in interface AttributeSet
        Returns:
        true if this attribute set contains no attributes.
      • equals

        public boolean equals(Object object)
        Compares the specified object with this attribute set for equality. Returns true if the given object is also an attribute set and the two attribute sets contain the same attribute category-attribute value mappings. This ensures that the equals() method works properly across different implementations of the AttributeSet interface.
        Specified by:
        equals in interface AttributeSet
        Overrides:
        equals in class Object
        Parameters:
        object - to be compared for equality with this attribute set.
        Returns:
        true if the specified object is equal to this attribute set.
        See Also:
        Object.hashCode(), HashMap


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