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Java Source Code / Java Documentation » XML » saxonb » net.sf.saxon.pull 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   net.sf.saxon.pull.PullFromIterator

PullFromIterator
public class PullFromIterator implements PullProvider(Code)
This class delivers any XPath sequence through the pull interface. Atomic values in the sequence are supplied unchanged, as are top-level text, comment, attribute, namespace, and processing-instruction nodes. Elements and documents appearing in the input sequence are supplied as a sequence of events that walks recursively down the subtree rooted at that node. The input is supplied in the form of a SequenceIterator.



Constructor Summary
public  PullFromIterator(SequenceIterator base)
    

Method Summary
public  voidclose()
     Close the event reader.
public  intcurrent()
     Get the event most recently returned by next(), or by other calls that change the position, for example getStringValue() and skipToMatchingEnd().
public  AtomicValuegetAtomicValue()
     Get an atomic value.
public  AttributeCollectiongetAttributes()
     Get the attributes associated with the current element.
public  intgetFingerprint()
     Get the fingerprint of the name of the element.
public  intgetNameCode()
     Get the nameCode identifying the name of the current node.
public  NamespaceDeclarationsgetNamespaceDeclarations()
     Get the namespace declarations associated with the current element.
public  PipelineConfigurationgetPipelineConfiguration()
     Get configuration information.
public  SourceLocatorgetSourceLocator()
     Get the location of the current event. For an event stream representing a real document, the location information should identify the location in the lexical XML source.
public  CharSequencegetStringValue()
     Get the string value of the current element, text node, processing-instruction, or top-level attribute or namespace node, or atomic value.

In other situations the result is undefined and may result in an IllegalStateException.

If the most recent event was a PullFromIterator.START_ELEMENT , this method causes the content of the element to be read.

public  intgetTypeAnnotation()
     Get the type annotation of the current attribute or element node, or atomic value. The result of this method is undefined unless the most recent event was START_ELEMENT, ATTRIBUTE, or ATOMIC_VALUE. the type annotation.
public  intnext()
     Get the next event an integer code indicating the type of event.
public  voidsetPipelineConfiguration(PipelineConfiguration pipe)
     Set configuration information.
public  intskipToMatchingEnd()
     Skip the current subtree.


Constructor Detail
PullFromIterator
public PullFromIterator(SequenceIterator base)(Code)




Method Detail
close
public void close()(Code)
Close the event reader. This indicates that no further events are required. It is not necessary to close an event reader after PullFromIterator.END_OF_INPUT has been reported, but it is recommended to close it if reading terminates prematurely. Once an event reader has been closed, the effect of further calls on next() is undefined.



current
public int current()(Code)
Get the event most recently returned by next(), or by other calls that change the position, for example getStringValue() and skipToMatchingEnd(). This method does not change the position of the PullProvider. the current event



getAtomicValue
public AtomicValue getAtomicValue()(Code)
Get an atomic value. This call may be used only when the last event reported was ATOMIC_VALUE. This indicates that the PullProvider is reading a sequence that contains a free-standing atomic value; it is never used when reading the content of a node.



getAttributes
public AttributeCollection getAttributes() throws XPathException(Code)
Get the attributes associated with the current element. This method must be called only after a START_ELEMENT event has been notified. The contents of the returned AttributeCollection are guaranteed to remain unchanged until the next START_ELEMENT event, but may be modified thereafter. The object should not be modified by the client.

Attributes may be read before or after reading the namespaces of an element, but must not be read after the first child node has been read, or after calling one of the methods skipToEnd(), getStringValue(), or getTypedValue().

an AttributeCollection representing the attributes of the elementthat has just been notified.



getFingerprint
public int getFingerprint()(Code)
Get the fingerprint of the name of the element. This is similar to the nameCode, except that it does not contain any information about the prefix: so two elements with the same fingerprint have the same name, excluding prefix. This method can be used after the PullFromIterator.START_ELEMENT , PullFromIterator.END_ELEMENT , PullFromIterator.PROCESSING_INSTRUCTION , PullFromIterator.ATTRIBUTE , or PullFromIterator.NAMESPACE events. If called at other times, the result is undefined and may result in an IllegalStateException. If called when the current node is an unnamed namespace node (a node representing the default namespace) the returned value is -1. the fingerprint. The fingerprint can be used to obtain the local nameand namespace URI from the name pool.



getNameCode
public int getNameCode()(Code)
Get the nameCode identifying the name of the current node. This method can be used after the PullFromIterator.START_ELEMENT , PullFromIterator.PROCESSING_INSTRUCTION , PullFromIterator.ATTRIBUTE , or PullFromIterator.NAMESPACE events. With some PullProvider implementations, including this one, it can also be used after PullFromIterator.END_ELEMENT . If called at other times, the result is undefined and may result in an IllegalStateException. If called when the current node is an unnamed namespace node (a node representing the default namespace) the returned value is -1. the nameCode. The nameCode can be used to obtain the prefix, local name,and namespace URI from the name pool.



getNamespaceDeclarations
public NamespaceDeclarations getNamespaceDeclarations() throws XPathException(Code)
Get the namespace declarations associated with the current element. This method must be called only after a START_ELEMENT event has been notified. In the case of a top-level START_ELEMENT event (that is, an element that either has no parent node, or whose parent is not included in the sequence being read), the NamespaceDeclarations object returned will contain a namespace declaration for each namespace that is in-scope for this element node. In the case of a non-top-level element, the NamespaceDeclarations will contain a set of namespace declarations and undeclarations, representing the differences between this element and its parent.

It is permissible for this method to return namespace declarations that are redundant.

The NamespaceDeclarations object is guaranteed to remain unchanged until the next START_ELEMENT event, but may then be overwritten. The object should not be modified by the client.

Namespaces may be read before or after reading the attributes of an element, but must not be read after the first child node has been read, or after calling one of the methods skipToEnd(), getStringValue(), or getTypedValue().

*



getPipelineConfiguration
public PipelineConfiguration getPipelineConfiguration()(Code)
Get configuration information.



getSourceLocator
public SourceLocator getSourceLocator()(Code)
Get the location of the current event. For an event stream representing a real document, the location information should identify the location in the lexical XML source. For a constructed document, it should identify the location in the query or stylesheet that caused the node to be created. A value of null can be returned if no location information is available.



getStringValue
public CharSequence getStringValue() throws XPathException(Code)
Get the string value of the current element, text node, processing-instruction, or top-level attribute or namespace node, or atomic value.

In other situations the result is undefined and may result in an IllegalStateException.

If the most recent event was a PullFromIterator.START_ELEMENT , this method causes the content of the element to be read. The current event on completion of this method will be the corresponding PullFromIterator.END_ELEMENT . The next call of next() will return the event following the END_ELEMENT event.

the String Value of the node in question, defined according to the rules in theXPath data model.



getTypeAnnotation
public int getTypeAnnotation()(Code)
Get the type annotation of the current attribute or element node, or atomic value. The result of this method is undefined unless the most recent event was START_ELEMENT, ATTRIBUTE, or ATOMIC_VALUE. the type annotation. This code is the fingerprint of a type name, which may beresolved to a net.sf.saxon.type.SchemaType by access to the Configuration.



next
public int next() throws XPathException(Code)
Get the next event an integer code indicating the type of event. The codePullFromIterator.END_OF_INPUT is returned at the end of the sequence.



setPipelineConfiguration
public void setPipelineConfiguration(PipelineConfiguration pipe)(Code)
Set configuration information. This must only be called before any events have been read.



skipToMatchingEnd
public int skipToMatchingEnd() throws XPathException(Code)
Skip the current subtree. This method may be called only immediately after a START_DOCUMENT or START_ELEMENT event. This call returns the matching END_DOCUMENT or END_ELEMENT event; the next call on next() will return the event following the END_DOCUMENT or END_ELEMENT.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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