net.sf.saxon.tinytree
Class TinyBuilder

java.lang.Object
  net.sf.saxon.event.Builder
      net.sf.saxon.tinytree.TinyBuilder

All Implemented Interfaces:

Result, Receiver

Direct Known Subclasses:

TinyBuilderCondensed

public class TinyBuilder
extends Builder

The TinyBuilder class is responsible for taking a stream of SAX events and constructing a Document tree, using the "TinyTree" implementation.

Author:

Michael H. Kay

Field Summary

static int

PARENT_POINTER_INTERVAL

Fields inherited from class net.sf.saxon.event.Builder

baseURI, config, currentRoot, lineNumbering, LINKED_TREE, namePool, pipe, STANDARD_TREE, started, systemId, timing, TINY_TREE, TINY_TREE_CONDENSED, UNSPECIFIED_TREE_MODEL

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

TinyBuilder()
Create a TinyTree builder

Method Summary

void	attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties) Notify an attribute.
void	characters(CharSequence chars, int locationId, int properties) Callback interface for SAX: not for application use
void	close() Notify the end of the event stream
void	comment(CharSequence chars, int locationId, int properties) Callback interface for SAX: not for application use
void	endDocument() Callback interface for SAX: not for application use
void	endElement() Callback interface for SAX: not for application use
int	getCurrentDepth() Get the current depth in the tree
NodeInfo	getLastCompletedElement() Get the last completed element node.
int[]	getSizeParameters() Get the size parameters for the tree
TinyTree	getTree() Get the tree being built by this builder
protected int	makeTextNode(CharSequence chars, int len) Create a text node.
void	namespace(int namespaceCode, int properties) Notify a namespace.
void	open() Open the event stream
void	processingInstruction(String piname, CharSequence remainder, int locationId, int properties) Callback interface for SAX: not for application use
void	reset() Reset the builder to its initial state.
void	setSizeParameters(int[] params) Set the size parameters for the tree
void	setUnparsedEntity(String name, String uri, String publicId) Set an unparsed entity in the document
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startDocument(int properties) Write a document node to the tree
void	startElement(int nameCode, int typeCode, int locationId, int properties) Notify the start tag of an element

Methods inherited from class net.sf.saxon.event.Builder

build, build, getBaseURI, getConfiguration, getCurrentRoot, getPipelineConfiguration, getSystemId, isTiming, setBaseURI, setLineNumbering, setPipelineConfiguration, setSystemId, setTiming, usesTypeAnnotations

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PARENT_POINTER_INTERVAL

public static final int PARENT_POINTER_INTERVAL

See Also:

Constant Field Values

Constructor Detail

TinyBuilder

public TinyBuilder()

Create a TinyTree builder

Method Detail

setSizeParameters

public void setSizeParameters(int[] params)

Set the size parameters for the tree

Parameters:

params - an array of four integers giving the expected number of non-attribute nodes, the expected number of attributes, the expected number of namespace declarations, and the expected total length of character data

getSizeParameters

public int[] getSizeParameters()

Get the size parameters for the tree

Returns:

an array of four integers giving the actual number of non-attribute nodes, the actual number of attributes, the actual number of namespace declarations, and the actual total length of character data

getTree

public TinyTree getTree()

Get the tree being built by this builder

Returns:

the TinyTree

getCurrentDepth

public int getCurrentDepth()

Get the current depth in the tree

Returns:

the current depth

open

public void open()
          throws XPathException

Open the event stream

Specified by:

open in interface Receiver

Overrides:

open in class Builder

Throws:

XPathException

startDocument

public void startDocument(int properties)
                   throws XPathException

Write a document node to the tree

Parameters:

properties - bit-significant integer indicating properties of the document node. The definitions of the bits are in class ReceiverOptions

Throws:

XPathException

endDocument

public void endDocument()
                 throws XPathException

Callback interface for SAX: not for application use

Throws:

XPathException

reset

public void reset()

Description copied from class: Builder

Reset the builder to its initial state. The most important effect of calling this method (implemented in subclasses) is to release any links to the constructed document tree, allowing the memory occupied by the tree to released by the garbage collector even if the Builder is still in memory. This can happen because the Builder is referenced from a parser in the Configuration's parser pool.

Overrides:

reset in class Builder

close

public void close()
           throws XPathException

Description copied from interface: Receiver

Notify the end of the event stream

Specified by:

close in interface Receiver

Overrides:

close in class Builder

Throws:

XPathException

startElement

public void startElement(int nameCode,
                         int typeCode,
                         int locationId,
                         int properties)
                  throws XPathException

Notify the start tag of an element

Parameters:

nameCode - integer code identifying the name of the element within the name pool.

typeCode - integer code identifying the element's type within the name pool. The value -1 indicates the default type, xs:untyped.

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - bit-significant properties of the element node. If there are no revelant properties, zero is supplied. The definitions of the bits are in class ReceiverOptions

Throws:

XPathException

namespace

public void namespace(int namespaceCode,
                      int properties)
               throws XPathException

Description copied from interface: Receiver

Notify a namespace. Namespaces are notified after the startElement event, and before any children for the element. The namespaces that are reported are only required to include those that are different from the parent element. The events represent namespace declarations and undeclarations rather than in-scope namespace nodes: an undeclaration is represented by a namespace code of zero. If the sequence of namespace events contains two A namespace must not conflict with any namespaces already used for element or attribute names.

Parameters:

namespaceCode - an integer: the top half is a prefix code, the bottom half a URI code. These may be translated into an actual prefix and URI using the name pool. A prefix code of zero represents the empty prefix (that is, the default namespace). A URI code of zero represents a URI of "", that is, a namespace undeclaration.

properties - The most important property is REJECT_DUPLICATES. If this property is set, the namespace declaration will be rejected if it conflicts with a previous declaration of the same prefix. If the property is not set, the namespace declaration will be ignored if it conflicts with a previous declaration. This reflects the fact that when copying a tree, namespaces for child elements are emitted before the namespaces of their parent element. Unfortunately this conflicts with the XSLT rule for complex content construction, where the recovery action in the event of conflicts is to take the namespace that comes last. XSLT therefore doesn't recover from this error: it sets the REJECT_DUPLICATES flag, and this is treated as a hard error.

Throws:

XPathException

attribute

public void attribute(int nameCode,
                      int typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException

Description copied from interface: Receiver

Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.

Parameters:

nameCode - The name of the attribute, as held in the name pool

typeCode - The type of the attribute, as held in the name pool. The additional bit NodeInfo.IS_DTD_TYPE may be set to indicate a DTD-derived type.

value - the string value of the attribute

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this attribute

NO_SPECIAL_CHARACTERS

Attribute value contains no special characters

Throws:

XPathException

startContent

public void startContent()

Description copied from interface: Receiver

Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

endElement

public void endElement()
                throws XPathException

Callback interface for SAX: not for application use

Throws:

XPathException

getLastCompletedElement

public NodeInfo getLastCompletedElement()

Get the last completed element node. This is used during checking of schema assertions, which happens while the tree is still under construction. This method is called immediately after a call on endElement(), and it returns the element that has just ended.

Returns:

the last completed element node, that is, the element whose endElement event is the most recent endElement event to be reported

characters

public void characters(CharSequence chars,
                       int locationId,
                       int properties)
                throws XPathException

Callback interface for SAX: not for application use

Parameters:

chars - The characters

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this text node

USE_CDATA

Output as a CDATA section

Throws:

XPathException

makeTextNode

protected int makeTextNode(CharSequence chars,
                           int len)

Create a text node. Separate method so it can be overridden

Parameters:

chars - the contents of the text node

len - the length of the text node

processingInstruction

public void processingInstruction(String piname,
                                  CharSequence remainder,
                                  int locationId,
                                  int properties)
                           throws XPathException

Callback interface for SAX: not for application use

Parameters:

piname - The PI name. This must be a legal name (it will not be checked).

remainder - The data portion of the processing instruction

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Additional information about the PI. The following bits are defined:

CHECKED

Data is known to be legal (e.g. doesn't contain "?>")

Throws:

XPathException

comment

public void comment(CharSequence chars,
                    int locationId,
                    int properties)
             throws XPathException

Callback interface for SAX: not for application use

Parameters:

chars - The content of the comment

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Additional information about the comment. The following bits are defined:

CHECKED

Comment is known to be legal (e.g. doesn't contain "--")

Throws:

XPathException

setUnparsedEntity

public void setUnparsedEntity(String name,
                              String uri,
                              String publicId)

Set an unparsed entity in the document

Parameters:

name - The name of the unparsed entity

uri - The system identifier of the unparsed entity

publicId - The public identifier of the unparsed entity