PrinterStateReasons (Java SE 17 & JDK 17)
Description: declaration: module: java.desktop, package: javax.print.attribute.standard, class: PrinterStateReasons
Keywords: javax.print.attribute.standard.PrinterStateReasons class

Module java.desktop
Package javax.print.attribute.standard

# Class PrinterStateReasons

java.lang.Object
java.util.AbstractMap<K,V>
java.util.HashMap<PrinterStateReason,Severity>
javax.print.attribute.standard.PrinterStateReasons

All Implemented Interfaces:
  `Serializable`, `Cloneable`, `Map<PrinterStateReason,Severity>`, `Attribute`, `PrintServiceAttribute`

public final class PrinterStateReasons extends HashMap<PrinterStateReason,Severity> implements PrintServiceAttribute
Class `PrinterStateReasons` is a printing attribute class, a set of enumeration values, that provides additional information about the printer's current state, i.e., information that augments the value of the printer's `PrinterState` attribute.

Instances of `PrinterStateReason` do not appear in a Print Service's attribute set directly. Rather, a `PrinterStateReasons` attribute appears in the Print Service's attribute set. The `PrinterStateReasons` attribute contains zero, one, or more than one `PrinterStateReason` objects which pertain to the Print Service's status, and each `PrinterStateReason` object is associated with a `Severity` level of `REPORT` (least severe), `WARNING`, or `ERROR` (most severe). The printer adds a `PrinterStateReason` object to the Print Service's `PrinterStateReasons` attribute when the corresponding condition becomes true of the printer, and the printer removes the `PrinterStateReason` object again when the corresponding condition becomes false, regardless of whether the Print Service's overall `PrinterState` also changed.

Class PrinterStateReasons inherits its implementation from class `java.util.HashMap`. Each entry in the map consists of a `PrinterStateReason` object (key) mapping to a `Severity` object (value):

Unlike most printing attributes which are immutable once constructed, class `PrinterStateReasons` is designed to be mutable; you can add `PrinterStateReason` objects to an existing `PrinterStateReasons` object and remove them again. However, like class `java.util.HashMap`, class `PrinterStateReasons` is not multiple thread safe. If a `PrinterStateReasons` object will be used by multiple threads, be sure to synchronize its operations (e.g., using a synchronized map view obtained from class `java.util.Collections`).

IPP Compatibility: The string values returned by each individual `PrinterStateReason` object's and the associated `Severity` object's `toString()` methods, concatenated together with a hyphen (`"-"`) in between, gives the IPP keyword value. The category name returned by `getName()` gives the IPP attribute name.

See Also:
  - Serialized Form

- ## Nested Class Summary

  ## Nested classes/interfaces declared in class java.util.AbstractMap

  `AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>`

  ## Nested classes/interfaces declared in interface java.util.Map

  `Map.Entry<K,V>`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `PrinterStateReasons()`
  Construct a new, empty printer state reasons attribute; the underlying hash map has the default initial capacity and load factor.
  `PrinterStateReasons(int initialCapacity)`
  Construct a new, empty printer state reasons attribute; the underlying hash map has the given initial capacity and the default load factor.
  `PrinterStateReasons(int initialCapacity, float loadFactor)`
  Construct a new, empty printer state reasons attribute; the underlying hash map has the given initial capacity and load factor.
  `PrinterStateReasons(Map<PrinterStateReason,Severity> map)`
  Construct a new printer state reasons attribute that contains the same `PrinterStateReason`-to-`Severity` mappings as the given map.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `final Class<? extends Attribute>`
  `getCategory()`
  Get the printing attribute class which is to be used as the "category" for this printing attribute value.
  `final String`
  `getName()`
  Get the name of the category of which this attribute value is an instance.
  `Set<PrinterStateReason>`
  `printerStateReasonSet(Severity severity)`
  Obtain an unmodifiable set view of the individual printer state reason attributes at the given severity level in this `PrinterStateReasons` attribute.
  `Severity`
  `put(PrinterStateReason reason, Severity severity)`
  Adds the given printer state reason to this printer state reasons attribute, associating it with the given severity level.

  ### Methods declared in class java.util.HashMap

  `clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, get, isEmpty, keySet, merge, putAll, remove, size, values`

  ### Methods declared in class java.util.AbstractMap

  `equals, hashCode, toString`

  ### Methods declared in class java.lang.Object

  `finalize, getClass, notify, notifyAll, wait, wait, wait`

  ### Methods declared in interface java.util.Map

  `equals, forEach, getOrDefault, hashCode, putIfAbsent, remove, replace, replace, replaceAll`

- ## Constructor Details

  - ### PrinterStateReasons

    public PrinterStateReasons()
    Construct a new, empty printer state reasons attribute; the underlying hash map has the default initial capacity and load factor.

  - ### PrinterStateReasons

    public PrinterStateReasons(int initialCapacity)
    Construct a new, empty printer state reasons attribute; the underlying hash map has the given initial capacity and the default load factor.
    Parameters:
      `initialCapacity` - initial capacity
    Throws:
      `IllegalArgumentException` - if the initial capacity is negative

  - ### PrinterStateReasons

    public PrinterStateReasons(int initialCapacity, float loadFactor)
    Construct a new, empty printer state reasons attribute; the underlying hash map has the given initial capacity and load factor.
    Parameters:
      `initialCapacity` - initial capacity
      `loadFactor` - load factor
    Throws:
      `IllegalArgumentException` - if the initial capacity is negative

  - ### PrinterStateReasons

    public PrinterStateReasons(Map<PrinterStateReason,Severity> map)
    Construct a new printer state reasons attribute that contains the same `PrinterStateReason`-to-`Severity` mappings as the given map. The underlying hash map's initial capacity and load factor are as specified in the superclass constructor `HashMap(Map)`.
    Parameters:
      `map` - map to copy
    Throws:
      `NullPointerException` - if `map` is `null` or if any key or value in `map` is `null`
      `ClassCastException` - if any key in `map` is not an instance of class `PrinterStateReason` or if any value in `map` is not an instance of class `Severity`

- ## Method Details

  - ### put

    public Severity put(PrinterStateReason reason, Severity severity)
    Adds the given printer state reason to this printer state reasons attribute, associating it with the given severity level. If this printer state reasons attribute previously contained a mapping for the given printer state reason, the old value is replaced.
    Specified by:
      `put` in interface `Map<PrinterStateReason,Severity>`
    Overrides:
      `put` in class `HashMap<PrinterStateReason,Severity>`
    Parameters:
      `reason` - printer state reason. This must be an instance of class `PrinterStateReason`
      `severity` - severity of the printer state reason. This must be an instance of class `Severity`
    Returns:
      previous severity associated with the given printer state reason, or `null` if the given printer state reason was not present
    Throws:
      `NullPointerException` - if `reason` is `null` or `severity` is `null`
      `ClassCastException` - if `reason` is not an instance of class `PrinterStateReason` or if `severity` is not an instance of class `Severity`
    Since:
      1.5

  - ### getCategory

    public final Class<? extends Attribute> getCategory()
    Get the printing attribute class which is to be used as the "category" for this printing attribute value.

    For class `PrinterStateReasons`, the category is class `PrinterStateReasons` itself.

    Specified by:
      `getCategory` in interface `Attribute`
    Returns:
      printing attribute class (category), an instance of class `java.lang.Class`

  - ### getName

    public final String getName()
    Get the name of the category of which this attribute value is an instance.

    For class `PrinterStateReasons`, the category name is `"printer-state-reasons"`.

    Specified by:
      `getName` in interface `Attribute`
    Returns:
      attribute category name

  - ### printerStateReasonSet

    public Set<PrinterStateReason> printerStateReasonSet(Severity severity)
    Obtain an unmodifiable set view of the individual printer state reason attributes at the given severity level in this `PrinterStateReasons` attribute. Each element in the set view is a `PrinterStateReason` object. The only elements in the set view are the `PrinterStateReason` objects that map to the given severity value. The set view is backed by this `PrinterStateReasons` attribute, so changes to this `PrinterStateReasons` attribute are reflected in the set view. The set view does not support element insertion or removal. The set view's iterator does not support element removal.
    Parameters:
      `severity` - severity level
    Returns:
      set view of the individual `PrinterStateReason` attributes at the given `Severity` level
    Throws:
      `NullPointerException` - if `severity` is `null`