Package net.sf.saxon.event
Class TypeCheckingFilter
java.lang.Object
net.sf.saxon.event.SequenceReceiver
net.sf.saxon.event.ProxyReceiver
net.sf.saxon.event.TypeCheckingFilter
A filter on the push pipeline that performs type checking, both of the item type and the
cardinality.
Note that the TypeCheckingFilter cannot currently check document node tests of the form document-node(element(X,Y)), so it is not invoked in such cases. This isn't a big problem, because most instructions that return document nodes materialize them anyway.
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Field Summary
Fields inherited from class net.sf.saxon.event.ProxyReceiver
nextReceiver
Fields 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
(int nameCode, int typeCode, CharSequence value, int locationId, int properties) Notify an attribute.void
characters
(CharSequence chars, int locationId, int properties) Character datavoid
close()
End of event streamvoid
comment
(CharSequence chars, int locationId, int properties) Output a commentvoid
Notify the end of a document nodevoid
End of elementvoid
namespace
(int namespaceCode, int properties) Notify a namespace.void
processingInstruction
(String target, CharSequence data, int locationId, int properties) Processing Instructionvoid
setRequiredType
(ItemType type, int cardinality, RoleLocator role) void
startDocument
(int properties) Start of a document node.void
startElement
(int nameCode, int typeCode, int locationId, int properties) Notify the start of an elementMethods inherited from class net.sf.saxon.event.ProxyReceiver
getConfiguration, getDocumentLocator, getNamePool, getUnderlyingReceiver, open, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startContent
Methods inherited from class net.sf.saxon.event.SequenceReceiver
getPipelineConfiguration, getSystemId
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Constructor Details
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TypeCheckingFilter
public TypeCheckingFilter()
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Method Details
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setRequiredType
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attribute
public void attribute(int nameCode, int 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.- Specified by:
attribute
in interfaceReceiver
- Overrides:
attribute
in classProxyReceiver
- Parameters:
nameCode
- The name of the attribute, as held in the name pooltypeCode
- The type of the attribute, as held in the name poollocationId
- 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
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characters
Character data- Specified by:
characters
in interfaceReceiver
- Overrides:
characters
in classProxyReceiver
- 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
- NO_SPECIAL_CHARACTERS
- Value contains no special characters
- WHITESPACE
- Text is all whitespace
- Throws:
XPathException
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comment
Output a comment- Specified by:
comment
in interfaceReceiver
- Overrides:
comment
in classProxyReceiver
- 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. The following bits are defined:- CHECKED
- Comment is known to be legal (e.g. doesn't contain "--")
- Throws:
XPathException
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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.- Specified by:
namespace
in interfaceReceiver
- Overrides:
namespace
in classProxyReceiver
- 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
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processingInstruction
public void processingInstruction(String target, CharSequence data, int locationId, int properties) throws XPathException Processing Instruction- Specified by:
processingInstruction
in interfaceReceiver
- Overrides:
processingInstruction
in classProxyReceiver
- 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. The following bits are defined:- CHECKED
- Data is known to be legal (e.g. doesn't contain "?>")
- Throws:
XPathException
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startDocument
Start of a document node.- Specified by:
startDocument
in interfaceReceiver
- Overrides:
startDocument
in classProxyReceiver
- Throws:
XPathException
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startElement
public void startElement(int nameCode, int typeCode, int locationId, int properties) throws XPathException Notify the start of an element- Specified by:
startElement
in interfaceReceiver
- Overrides:
startElement
in classProxyReceiver
- 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
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endDocument
Notify the end of a document node- Specified by:
endDocument
in interfaceReceiver
- Overrides:
endDocument
in classProxyReceiver
- Throws:
XPathException
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endElement
End of element- Specified by:
endElement
in interfaceReceiver
- Overrides:
endElement
in classProxyReceiver
- Throws:
XPathException
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close
End of event stream- Specified by:
close
in interfaceReceiver
- Overrides:
close
in classProxyReceiver
- Throws:
XPathException
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append
Output an item (atomic value or node) to the sequence- Overrides:
append
in classSequenceReceiver
- Throws:
XPathException
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