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public final class SimpleDoc extends Object implements Doc
This class is an implementation of interface Doc
that can
be used in many common printing requests.
It can handle all of the presently defined "pre-defined" doc flavors
defined as static variables in the DocFlavor class.
In particular this class implements certain required semantics of the Doc specification as follows:
If the print data is a stream, or a print job requests data as a
stream, then SimpleDoc
does not monitor if the service
properly closes the stream after data transfer completion or job
termination.
Clients may prefer to use provide their own implementation of doc that
adds a listener to monitor job completion and to validate that
resources such as streams are freed (ie closed).
Constructor Summary | |
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SimpleDoc(Object printData, DocFlavor flavor, DocAttributeSet attributes) Constructs a SimpleDoc with the specified
print data, doc flavor and doc attribute set.
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Method Summary | |
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DocAttributeSet |
Obtains the set of printing attributes for this doc object. |
DocFlavor |
Determines the doc flavor in which this doc object will supply its piece of print data. |
Object |
|
Reader |
Obtains a reader for extracting character print data from this doc. |
InputStream |
Obtains an input stream for extracting byte print data from this doc. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SimpleDoc(Object printData, DocFlavor flavor, DocAttributeSet attributes)
SimpleDoc
with the specified
print data, doc flavor and doc attribute set.
printData
- the print data objectflavor
- the DocFlavor
objectattributes
- a DocAttributeSet
, which can
be null
Method Detail |
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public DocAttributeSet getAttributes()
public DocFlavor getDocFlavor()
public Object getPrintData() throws IOException
IOException
public Reader getReaderForText() throws IOException
Doc
implementation is required to support this
method if the DocFlavor
has one of the following print
data representation classes, and return null
otherwise:
char[]
java.lang.String
java.io.Reader
Reader
for reading the print data as a stream
of characters from the print data representation object.
However, if the print data representation object is itself a
Reader
then the print data representation object is
simply returned.
Reader
for reading the print data
characters from this doc.
If a reader cannot be provided because this doc does not meet
the criteria stated above, null
is returned.IOException
- if there was an I/O error while creating
the reader.public InputStream getStreamForBytes() throws IOException
Doc
implementation is required to support this
method if the DocFlavor
has one of the following print
data representation classes; otherwise this method
returns null
:
byte[]
java.io.InputStream
InputStream
for reading the print data
bytes from this doc. If an input stream cannot be
provided because this doc does not meet
the criteria stated above, null
is returned.IOException
- if there was an I/O error while creating the input stream.
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