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java.lang.Objectnet.sf.saxon.expr.flwor.Clause
net.sf.saxon.expr.flwor.OrderByClause
public class OrderByClause
This class represents an "order by" clause in a FLWOR expression
| Field Summary |
|---|
| Fields inherited from class net.sf.saxon.expr.flwor.Clause |
|---|
COUNT, FOR, GROUPBYCLAUSE, LET, ORDERBYCLAUSE, WHERE, WINDOW |
| Constructor Summary | |
|---|---|
OrderByClause(SortKeyDefinition[] sortKeys,
TupleExpression tupleExpression)
|
|
| Method Summary | |
|---|---|
OrderByClause |
copy()
|
AtomicValue |
evaluateSortKey(int n,
XPathContext c)
Callback for evaluating the sort keys |
void |
explain(ExpressionPresenter out)
Diagnostic print of expression structure. |
AtomicComparer[] |
getAtomicComparers()
|
int |
getClauseKey()
Get a keyword identifying what kind of clause this is |
TuplePull |
getPullStream(TuplePull base,
XPathContext context)
Get a tuple stream that implements the functionality of this clause, taking its input from another tuple stream which this clause modifies |
TuplePush |
getPushStream(TuplePush destination,
XPathContext context)
Get a push-mode tuple stream that implements the functionality of this clause, supplying its output to another tuple stream |
SortKeyDefinition[] |
getSortKeyDefinitions()
|
void |
processSubExpressions(ExpressionProcessor processor)
Process the subexpressions of this clause |
String |
toString()
|
void |
typeCheck(ExpressionVisitor visitor)
Type-check the expression |
| Methods inherited from class net.sf.saxon.expr.flwor.Clause |
|---|
gatherVariableReferences, getRangeVariables, optimize, refineVariableType |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public OrderByClause(SortKeyDefinition[] sortKeys,
TupleExpression tupleExpression)
| Method Detail |
|---|
public int getClauseKey()
Clause
getClauseKey in class Clausepublic OrderByClause copy()
copy in class Clausepublic SortKeyDefinition[] getSortKeyDefinitions()
public AtomicComparer[] getAtomicComparers()
public TuplePull getPullStream(TuplePull base,
XPathContext context)
getPullStream in class Clausebase - the input tuple streamcontext -
public TuplePush getPushStream(TuplePush destination,
XPathContext context)
getPushStream in class Clausedestination - the output tuple streamcontext -
public void processSubExpressions(ExpressionProcessor processor)
throws XPathException
processSubExpressions in class Clauseprocessor - the expression processor used to process the subexpressions
XPathException - if any error is detected
public void typeCheck(ExpressionVisitor visitor)
throws XPathException
typeCheck in class Clausevisitor - the ExpressionVisitor, providing access to static context information
XPathException - if any error is detectedpublic void explain(ExpressionPresenter out)
explain in class Clauseout - the expression presenter used to display the structurepublic String toString()
toString in class Object
public AtomicValue evaluateSortKey(int n,
XPathContext c)
throws XPathException
XPathException
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