Interface PrintServiceAttributeSet

All Superinterfaces:: AttributeSet

All Known Implementing Classes:: HashPrintServiceAttributeSet

public interface PrintServiceAttributeSet extends AttributeSet

Interface PrintServiceAttributeSet specifies the interface for a set of print job attributes, i.e. printing attributes that implement interface PrintServiceAttribute. In the Print Service API, the Print Service instance uses a PrintServiceAttributeSet to report the status of the print service.

A PrintServiceAttributeSet is just an AttributeSet whose constructors and mutating operations guarantee an additional invariant, namely that all attribute values in the PrintServiceAttributeSet must be instances of interface PrintServiceAttribute. The add(Attribute), and addAll(AttributeSet) operations are respecified below to guarantee this additional invariant.

Method Summary

Modifier and Type	Method	Description
`boolean`	`add(Attribute attribute)`	Adds the specified attribute value 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 (optional operation).
`boolean`	`addAll(AttributeSet attributes)`	Adds all of the elements in the specified set to this attribute.

Methods declared in interface AttributeSet

clear, containsKey, containsValue, equals, get, hashCode, isEmpty, remove, remove, size, toArray

Modifier and Type	Method	Description
`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(Class<?> category)`	Removes any attribute for this category from this attribute set if present.
`boolean`	`remove(Attribute attribute)`	Removes the specified attribute 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 Details

add

boolean add(Attribute attribute)

Adds the specified attribute value 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 (optional operation).

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:: UnmodifiableSetException - if this attribute set does not support the add() operation; ClassCastException - if the attribute is not an instance of interface PrintServiceAttribute; NullPointerException - if the attribute is null

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. If none of the categories in the specified set are the same as any categories in this attribute set, the addAll() operation effectively modifies this attribute set so that its value is the union of the two sets.

The behavior of the addAll() operation is unspecified if the specified set is modified while the operation is in progress.

If the addAll() 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 - if this attribute set does not support the addAll() method

ClassCastException - if some element in the specified set is not an instance of interface PrintServiceAttribute

NullPointerException - if the specified set is null

See Also:

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