JobKOctets (Java SE 15 & JDK 15)
Description: declaration: module: java.desktop, package: javax.print.attribute.standard, class: JobKOctets
Keywords: javax.print.attribute.standard.JobKOctets class

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

# Class JobKOctets

java.lang.Object
javax.print.attribute.IntegerSyntax
javax.print.attribute.standard.JobKOctets

All Implemented Interfaces:
  `Serializable`, `Cloneable`, `Attribute`, `PrintJobAttribute`, `PrintRequestAttribute`

    public final class JobKOctets
    extends IntegerSyntax
    implements PrintRequestAttribute, PrintJobAttribute

Class `JobKOctets` is an integer valued printing attribute class that specifies the total size of the document(s) in K octets, i.e., in units of 1024 octets requested to be processed in the job. The value must be rounded up, so that a job between 1 and 1024 octets must be indicated as being 1K octets, 1025 to 2048 must be 2K octets, etc. For a multidoc print job (a job with multiple documents), the `JobKOctets` value is computed by adding up the individual documents' sizes in octets, then rounding up to the next K octets value.

The `JobKOctets` attribute describes the size of the job. This attribute is not intended to be a counter; it is intended to be useful routing and scheduling information if known. The printer may try to compute the `JobKOctets` attribute's value if it is not supplied in the Print Request. Even if the client does supply a value for the `JobKOctets` attribute in the Print Request, the printer may choose to change the value if the printer is able to compute a value which is more accurate than the client supplied value. The printer may be able to determine the correct value for the `JobKOctets` attribute either right at job submission time or at any later point in time.

The `JobKOctets` value must not include the multiplicative factors contributed by the number of copies specified by the `Copies` attribute, independent of whether the device can process multiple copies without making multiple passes over the job or document data and independent of whether the output is collated or not. Thus the value is independent of the implementation and indicates the size of the document(s) measured in K octets independent of the number of copies.

The `JobKOctets` value must also not include the multiplicative factor due to a copies instruction embedded in the document data. If the document data actually includes replications of the document data, this value will include such replication. In other words, this value is always the size of the source document data, rather than a measure of the hardcopy output to be produced.

The size of a doc is computed based on the print data representation class as specified by the doc's `DocFlavor`, as shown in the table below.

Table showing computation of doc sizes
Representation Class | Document Size
--- | ---
`byte[]` | Length of the byte array
`java.io.InputStream` | Number of bytes read from the stream
`char[]` | Length of the character array x 2
`java.lang.String` | Length of the string x 2
`java.io.Reader` | Number of characters read from the stream x 2
`java.net.URL` | Number of bytes read from the file at the given `URL` address
`java.awt.image.renderable.RenderableImage` | Implementation dependent*
`java.awt.print.Printable` | Implementation dependent*
`java.awt.print.Pageable` | Implementation dependent*

* In these cases the Print Service itself generates the print data sent to the printer. If the Print Service supports the `JobKOctets` attribute, for these cases the Print Service itself must calculate the size of the print data, replacing any `JobKOctets` value the client specified.

IPP Compatibility: The integer value gives the IPP integer value. The category name returned by `getName()` gives the IPP attribute name.

See Also:
  `JobKOctetsSupported`, `JobKOctetsProcessed`, `JobImpressions`, `JobMediaSheets`, Serialized Form

- ## Constructor Summary

  Constructors
  Constructor | Description
  --- | ---
  `JobKOctets​(int value)` | Construct a new job K octets attribute with the given integer value.

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `boolean` | `equals​(Object object)` | Returns whether this job K octets attribute is equivalent to the passed in object.
  `Class<? extends Attribute>` | `getCategory()` | Get the printing attribute class which is to be used as the "category" for this printing attribute value.
  `String` | `getName()` | Get the name of the category of which this attribute value is an instance.

  ### Methods declared in class javax.print.attribute.IntegerSyntax

  `getValue, hashCode, toString`

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

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

- ## Constructor Details

  - ### JobKOctets

    public JobKOctets​(int value)
    Construct a new job K octets attribute with the given integer value.
    Parameters:
      `value` - Integer value
    Throws:
      `IllegalArgumentException` - if `value` is negative

- ## Method Details

  - ### equals

    public boolean equals​(Object object)
    Returns whether this job K octets attribute is equivalent to the passed in object. To be equivalent, all of the following conditions must be true:
    1. `object` is not `null`.
    2. `object` is an instance of class `JobKOctets`.
    3. This job K octets attribute's value and `object`'s value are equal.
    Overrides:
      `equals` in class `IntegerSyntax`
    Parameters:
      `object` - `Object` to compare to
    Returns:
      `true` if `object` is equivalent to this job K octets attribute, `false` otherwise
    See Also:
      `Object.hashCode()`, `HashMap`

  - ### 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 `JobKOctets`, the category is class `JobKOctets` 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 `JobKOctets`, the category name is `"job-k-octets"`.

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