/*
* @(#)JobKOctets.java 1.8 04/05/05
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.print.attribute.standard;
import javax.print.attribute.Attribute;
import javax.print.attribute.IntegerSyntax;
import javax.print.attribute.PrintRequestAttribute;
import javax.print.attribute.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.
* <P>
* 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.
* <P>
* The JobKOctets value must not include the multiplicative factors contributed
* by the number of copies specified by the {@link Copies 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.
* <P>
* 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.
* <P>
* The size of a doc is computed based on the print data representation class as
* specified by the doc's {@link javax.print.DocFlavor DocFlavor}, as
* shown in the table below.
* <P>
* <TABLE BORDER=1 CELLPADDING=2 CELLSPACING=1 SUMMARY="Table showing computation of doc sizes">
* <TR BGCOLOR="#E5E5E5">
* <TH>Representation Class</TH>
* <TH>Document Size</TH>
* </TR>
* <TR>
* <TD>byte[]</TD>
* <TD>Length of the byte array</TD>
* </TR>
* <TR>
* <TD>java.io.InputStream</TD>
* <TD>Number of bytes read from the stream</TD>
* </TR>
* <TR>
* <TD>char[]</TD>
* <TD>Length of the character array x 2</TD>
* </TR>
* <TR>
* <TD>java.lang.String</TD>
* <TD>Length of the string x 2</TD>
* </TR>
* <TR>
* <TD>java.io.Reader</TD>
* <TD>Number of characters read from the stream x 2</TD>
* </TR>
* <TR>
* <TD>java.net.URL</TD>
* <TD>Number of bytes read from the file at the given URL address</TD>
* </TR>
* <TR>
* <TD>java.awt.image.renderable.RenderableImage</TD>
* <TD>Implementation dependent*</TD>
* </TR>
* <TR>
* <TD>java.awt.print.Printable</TD>
* <TD>Implementation dependent*</TD>
* </TR>
* <TR>
* <TD>java.awt.print.Pageable</TD>
* <TD>Implementation dependent*</TD>
* </TR>
* </TABLE>
* <P>
* * 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.
* <P>
* <B>IPP Compatibility:</B> The integer value gives the IPP integer value. The
* category name returned by <CODE>getName()</CODE> gives the IPP attribute
* name.
* <P>
*
* @see JobKOctetsSupported
* @see JobKOctetsProcessed
* @see JobImpressions
* @see JobMediaSheets
*
* @author Alan Kaminsky
*/
public final class JobKOctets extends IntegerSyntax
implements PrintRequestAttribute, PrintJobAttribute {
private static final long serialVersionUID = -8959710146498202869L;
/**
* Construct a new job K octets attribute with the given integer value.
*
* @param value Integer value.
*
* @exception IllegalArgumentException
* (Unchecked exception) Thrown if <CODE>value</CODE> is less than 0.
*/
public JobKOctets(int value) {
super (value, 0, Integer.MAX_VALUE);
}
/**
* 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:
* <OL TYPE=1>
* <LI>
* <CODE>object</CODE> is not null.
* <LI>
* <CODE>object</CODE> is an instance of class JobKOctets.
* <LI>
* This job K octets attribute's value and <CODE>object</CODE>'s value
* are equal.
* </OL>
*
* @param object Object to compare to.
*
* @return True if <CODE>object</CODE> is equivalent to this job K
* octets attribute, false otherwise.
*/
public boolean equals(Object object) {
return super.equals(object) && object instanceof JobKOctets;
}
/**
* Get the printing attribute class which is to be used as the "category"
* for this printing attribute value.
* <P>
* For class JobKOctets, the category is class JobKOctets itself.
*
* @return Printing attribute class (category), an instance of class
* {@link java.lang.Class java.lang.Class}.
*/
public final Class<? extends Attribute> getCategory() {
return JobKOctets.class;
}
/**
* Get the name of the category of which this attribute value is an
* instance.
* <P>
* For class JobKOctets, the category name is <CODE>"job-k-octets"</CODE>.
*
* @return Attribute category name.
*/
public final String getName() {
return "job-k-octets";
}
}
|
