IT. Expert System.

Java Standard Edition (SE)

AttributeSet


javax.print.attribute

Interface AttributeSet

    • Method Summary

      All Methods Instance Methods Abstract 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 value 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 value.
      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.
    • Method Detail

      • get

        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.
        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

        boolean add(Attribute attribute)
        Adds the specified attribute to this attribute set if it is not already present, first removing any existing value in the same attribute category as the specified attribute value.
        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

        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.
        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 value had been a member of this attribute set.
        Throws:
        UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support the remove() operation.
      • remove

        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.
        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

        boolean containsKey(Class<?> category)
        Returns true if this attribute set contains an attribute for the specified category.
        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

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

        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.

        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.
        See Also:
        add(Attribute)
      • size

        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.
        Returns:
        The number of attributes in this attribute set.
      • toArray

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

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

        boolean isEmpty()
        Returns true if this attribute set contains no attributes.
        Returns:
        true if this attribute set contains no attributes.
      • equals

        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.
        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
      • hashCode

        int hashCode()
        Returns the hash code value for this attribute set. The hash code of an attribute set is defined to be the sum of the hash codes of each entry in the AttributeSet. This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two attribute sets t1 and t2, as required by the general contract of Object.hashCode().
        Overrides:
        hashCode in class Object
        Returns:
        The hash code value for this attribute set.
        See Also:
        Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)


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