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:
Serialized Form

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.

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Method Summary

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.

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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- 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
  - 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 Object.hashCode().
    
    Specified by:
    
    hashCode in interface AttributeSet
    
    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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Vielen Dank im Voraus.

Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/print/attribute/HashAttributeSet.html

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Referenzen

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Inhaltsverzeichnis Haut

Class HashAttributeSet

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HashAttributeSet

HashAttributeSet

HashAttributeSet

HashAttributeSet

HashAttributeSet

HashAttributeSet

HashAttributeSet

HashAttributeSet

Method Detail

get

add

remove

remove

containsKey

containsValue

addAll

size

toArray

clear

isEmpty

equals

hashCode

Referenzen