javax.print.attribute
class HashAttributeSet

java.lang.Object javax.print.attribute.HashAttributeSet

All Implemented Interfaces:

Serializable, AttributeSet

Direct Known Subclasses:

HashDocAttributeSet, HashPrintJobAttributeSet, HashPrintRequestAttributeSet, HashPrintServiceAttributeSet

public class HashAttributeSet
extends Object
implements AttributeSet, Serializable

Class HashAttributeSet provides an AttributeSet implementation with characteristics of a hash map.

See Also (auto-generated):

AttributeSet

AttributeSetUtilities

PrintRequestAttributeSet

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.

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 {@link Attribute Attribute} or a subinterface thereof.

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(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 {@link Attribute Attribute} or a subinterface thereof.

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.

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 {@link Attribute Attribute} or a subinterface thereof.

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 {@link Attribute Attribute} or a subinterface thereof.

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.

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.

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 {@link #add(Attribute) 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.

clear

public void clear()

Removes all attributes from this attribute set.

containsKey

public 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

public boolean containsValue(Attribute attribute)

Returns true if this attribute set contains the given attribute.

Parameters:

attribute - value whose presence in this attribute set is to be tested.

Returns:

true if this attribute set contains the given attribute value.

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.

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.

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.

Parameters:

category - Attribute category whose associated attribute value is to be returned. It must be a {@link java.lang.Class Class} that implements interface {@link Attribute 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.

hashCode

public 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 {@link java.lang.Object#hashCode() Object.hashCode()}.

Overrides:

hashCode in class Object

Returns:

The hash code value for this attribute set.

isEmpty

public boolean isEmpty()

Returns true if this attribute set contains no attributes.

Returns:

true if this attribute set contains no attributes.

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.

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.

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.

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.

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.

Returns:

The number of attributes in this attribute set.

toArray

public Attribute[] toArray()

Returns:

the Attributes contained in this set as an array, zero length if the AttributeSet is empty.