Package net.sf.saxon.query
Class SequenceWrapper
java.lang.Object
net.sf.saxon.event.SequenceReceiver
net.sf.saxon.query.SequenceWrapper
This class can be used in a push pipeline: it accepts any sequence as input, and generates
a document in which the items of the sequence are wrapped by elements containing information about
the types of the items in the input sequence.
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Field Summary
FieldsFields inherited from class net.sf.saxon.event.SequenceReceiver
pipelineConfiguration, previousAtomic, systemId
Fields inherited from interface javax.xml.transform.Result
PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Output an item (atomic value or node) to the sequencevoid
attribute
(NodeName attName, SimpleType typeCode, CharSequence value, int locationId, int properties) Notify an attribute.void
characters
(CharSequence chars, int locationId, int properties) Character datavoid
close()
Notify the end of the event streamvoid
comment
(CharSequence chars, int locationId, int properties) Output a commentvoid
Notify the end of a document nodevoid
End of elementvoid
namespace
(NamespaceBinding namespaceBinding, int properties) Notify a namespace.void
open()
Start the output processvoid
processingInstruction
(String target, CharSequence data, int locationId, int properties) Processing Instructionvoid
Notify the start of the content, that is, the completion of all attributes and namespaces.void
startDocument
(int properties) Start of a document node.void
startElement
(NodeName nameCode, SchemaType typeCode, int locationId, int properties) Notify the start of an elementboolean
Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute eventsMethods inherited from class net.sf.saxon.event.SequenceReceiver
append, getConfiguration, getNamePool, getPipelineConfiguration, getSystemId, setPipelineConfiguration, setSystemId, setUnparsedEntity
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Field Details
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RESULT_NS
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Constructor Details
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SequenceWrapper
Create a sequence wrapper. This creates an XML representation of the items sent to destination in which the types of all items are made explicit- Parameters:
destination
- the sequence being wrapped
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Method Details
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open
Description copied from class:SequenceReceiver
Start the output process- Specified by:
open
in interfaceReceiver
- Overrides:
open
in classSequenceReceiver
- Throws:
XPathException
- if an error occurs
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startDocument
Start of a document node.- Parameters:
properties
- bit-significant integer indicating properties of the document node. The definitions of the bits are in classReceiverOptions
- Throws:
XPathException
- if an error occurs
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endDocument
Notify the end of a document node- Throws:
XPathException
- if an error occurs
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startElement
public void startElement(NodeName nameCode, SchemaType typeCode, int locationId, int properties) throws XPathException Notify the start 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.locationId
- an integer which can be interpreted using aLocationProvider
to return information such as line number and system ID. If no location information is available, the value zero is supplied.properties
- properties of the element node- Throws:
XPathException
- if an error occurs
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endElement
End of element- Throws:
XPathException
- if an error occurs
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attribute
public void attribute(NodeName attName, SimpleType typeCode, CharSequence value, int locationId, int properties) throws XPathException Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.- Parameters:
attName
- The name of the attribute, as held in the name pooltypeCode
- The type of the attribute, as held in the name poolvalue
- the string value of the attributelocationId
- an integer which can be interpreted using aLocationProvider
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
- if an error occurs
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namespace
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; however, duplicates may be reported. A namespace must not conflict with any namespaces already used for element or attribute names.- Parameters:
namespaceBinding
-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:- Throws:
XPathException
- if an error occurs
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characters
Character data- Parameters:
chars
- The characterslocationId
- an integer which can be interpreted using aLocationProvider
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
- if an error occurs
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comment
Output a comment- Parameters:
chars
- The content of the commentlocationId
- an integer which can be interpreted using aLocationProvider
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.- Throws:
XPathException
- if an error occurs
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processingInstruction
public void processingInstruction(String target, CharSequence data, int locationId, int properties) throws XPathException Processing Instruction- Parameters:
target
- The PI name. This must be a legal name (it will not be checked).data
- The data portion of the processing instructionlocationId
- an integer which can be interpreted using aLocationProvider
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.- Throws:
XPathException
- if an error occurs
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append
Output an item (atomic value or node) to the sequence- Specified by:
append
in classSequenceReceiver
- Parameters:
item
- the item to be appendedlocationId
- the location of the calling instruction, for diagnosticscopyNamespaces
- if the item is an element node, this indicates whether its namespaces need to be copied. Values areNodeInfo.ALL_NAMESPACES
,NodeInfo.LOCAL_NAMESPACES
,NodeInfo.NO_NAMESPACES
- Throws:
XPathException
- if the operation fails
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startContent
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.- Throws:
XPathException
- if an error occurs
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close
Notify the end of the event stream- Throws:
XPathException
- if an error occurs
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usesTypeAnnotations
public boolean usesTypeAnnotations()Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events- Returns:
- true if the Receiver makes any use of this information. If false, the caller may supply untyped nodes instead of supplying the type annotation
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