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java.lang.Object | +--net.sf.saxon.expr.XPathContextMinor
This class represents a minor change in the dynamic context in which an XPath expression is evaluated: a "major context" object allows all aspects of the dynamic context to change, whereas a "minor context" only allows changes to the focus and the destination for push output.
| Constructor Summary | |
protected |
XPathContextMinor()
Private Constructor |
| Method Summary | |
void |
changeOutputDestination(java.util.Properties props,
javax.xml.transform.Result result,
boolean isFinal,
int validation,
SchemaType schemaType)
Set a new output destination, supplying the output format details. |
Value |
evaluateLocalVariable(int slotnumber)
Get the value of a local variable, identified by its slot number |
XPathContext |
getCaller()
Get the calling XPathContext (the next one down the stack). |
java.util.Comparator |
getCollation(java.lang.String name)
Get a named collation |
Item |
getContextItem()
Get the context item |
int |
getContextPosition()
Get the context position (the position of the context item) |
Controller |
getController()
Get the Controller. |
GroupIterator |
getCurrentGroupIterator()
Get the current group iterator. |
SequenceIterator |
getCurrentIterator()
Get the current iterator. |
Mode |
getCurrentMode()
Get the current mode. |
RegexIterator |
getCurrentRegexIterator()
Get the current regex iterator. |
Template |
getCurrentTemplate()
Get the current template. |
java.util.Comparator |
getDefaultCollation()
Get the default collation |
int |
getLast()
Get the context size (the position of the last item in the current node list) |
ParameterSet |
getLocalParameters()
Get the local parameters for the current template call. |
InstructionInfoProvider |
getOrigin()
Get information about the creating expression or other construct. |
int |
getOriginatingConstructType()
Get the type of location from which this context was created. |
SequenceReceiver |
getReceiver()
Get the Receiver to which output is currently being written. |
StackFrame |
getStackFrame()
Get a reference to the local stack frame for variables. |
ParameterSet |
getTunnelParameters()
Get the tunnel parameters for the current template call. |
boolean |
isAtLast()
Determine whether the context position is the same as the context size that is, whether position()=last() |
XPathContextMajor |
newCleanContext()
Construct a new context without copying (used for the context in a function call) |
XPathContextMajor |
newContext()
Construct a new context as a copy of another. |
XPathContextMinor |
newMinorContext()
Construct a new minor context. |
void |
setCaller(XPathContext caller)
Set the calling XPathContext |
void |
setCurrentIterator(SequenceIterator iter)
Set a new sequence iterator. |
void |
setLocalVariable(int slotnumber,
Value value)
Set the value of a local variable, identified by its slot number |
void |
setOrigin(InstructionInfoProvider expr)
Set the creating expression (for use in diagnostics). |
void |
setOriginatingConstructType(int loc)
Set the type of creating expression (for use in diagnostics). |
void |
setReceiver(SequenceReceiver receiver)
Change the Receiver to which output is written |
void |
setTemporaryReceiver(SequenceReceiver out)
Set the output destination to write to a sequence. |
boolean |
useLocalParameter(int fingerprint,
LocalParam binding,
boolean isTunnel)
Use local parameter. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
protected XPathContextMinor()
| Method Detail |
public XPathContextMajor newContext()
newContext in interface XPathContextpublic XPathContextMinor newMinorContext()
XPathContext
newMinorContext in interface XPathContextpublic void setCaller(XPathContext caller)
setCaller in interface XPathContextpublic XPathContextMajor newCleanContext()
newCleanContext in interface XPathContextpublic ParameterSet getLocalParameters()
getLocalParameters in interface XPathContextpublic ParameterSet getTunnelParameters()
getTunnelParameters in interface XPathContextpublic void setOrigin(InstructionInfoProvider expr)
InstructionInfoProvider, allowing information
about the calling instruction to be obtained.
setOrigin in interface XPathContextpublic void setOriginatingConstructType(int loc)
setOrigin(net.sf.saxon.trace.InstructionInfoProvider) should be called.
setOriginatingConstructType in interface XPathContextloc - The originating location: the argument must be one of the integer constants in class
Locationpublic int getOriginatingConstructType()
getOriginatingConstructType in interface XPathContextpublic InstructionInfoProvider getOrigin()
getOrigin in interface XPathContextpublic Controller getController()
getController in interface XPathContextpublic XPathContext getCaller()
getCaller in interface XPathContextpublic void setCurrentIterator(SequenceIterator iter)
setCurrentIterator in interface XPathContextpublic SequenceIterator getCurrentIterator()
getCurrentIterator in interface XPathContext
public int getContextPosition()
throws DynamicError
getContextPosition in interface XPathContextDynamicError - if the context position is undefinedpublic Item getContextItem()
getContextItem in interface XPathContext
public int getLast()
throws XPathException
getLast in interface XPathContextXPathException - if the context position is undefined
public boolean isAtLast()
throws XPathException
isAtLast in interface XPathContextXPathException
public java.util.Comparator getCollation(java.lang.String name)
throws XPathException
getCollation in interface XPathContextXPathExceptionpublic java.util.Comparator getDefaultCollation()
getDefaultCollation in interface XPathContextpublic StackFrame getStackFrame()
getStackFrame in interface XPathContextpublic Value evaluateLocalVariable(int slotnumber)
evaluateLocalVariable in interface XPathContext
public void setLocalVariable(int slotnumber,
Value value)
setLocalVariable in interface XPathContext
public void changeOutputDestination(java.util.Properties props,
javax.xml.transform.Result result,
boolean isFinal,
int validation,
SchemaType schemaType)
throws XPathException
changeOutputDestination in interface XPathContextprops - properties defining the output formatresult - Details of the new output destinationisFinal - true if the destination is a final result tree
(either the principal output or a secondary result tree); false if
it is a temporary tree, xsl:attribute, etc.
XPathException - if any dynamic error occurs; and
specifically, if an attempt is made to switch to a final output
destination while writing a temporary tree or sequencepublic void setTemporaryReceiver(SequenceReceiver out)
setTemporaryReceiver in interface XPathContextout - The SequenceReceiver to be usedpublic void setReceiver(SequenceReceiver receiver)
setReceiver in interface XPathContextpublic SequenceReceiver getReceiver()
getReceiver in interface XPathContext
public boolean useLocalParameter(int fingerprint,
LocalParam binding,
boolean isTunnel)
throws XPathException
useLocalParameter in interface XPathContextfingerprint - The fingerprint of the parameter namebinding - The XSLParam element to bind its value toisTunnel - True if a tunnel parameter is required, else false
XPathExceptionpublic Mode getCurrentMode()
getCurrentMode in interface XPathContextpublic Template getCurrentTemplate()
getCurrentTemplate in interface XPathContextpublic GroupIterator getCurrentGroupIterator()
getCurrentGroupIterator in interface XPathContextpublic RegexIterator getCurrentRegexIterator()
getCurrentRegexIterator in interface XPathContext
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