com.saxonica.bytecode
Class SortExpressionCompiler

java.lang.Object
  com.saxonica.bytecode.ExpressionCompiler
      com.saxonica.bytecode.ToIteratorCompiler
          com.saxonica.bytecode.SortExpressionCompiler

public class SortExpressionCompiler
extends ToIteratorCompiler

Constructor Summary

SortExpressionCompiler()

Method Summary

static int	compileSortKeyDefinitions(CompilerService compiler, SortKeyDefinition[] definitions) Generate code to evaluate variable parts of the sort key definitions
void	compileToIterator(CompilerService compiler, Expression expression) Generate bytecode to evaluate the expression as a SequenceIterator Precondition: none.

Methods inherited from class com.saxonica.bytecode.ToIteratorCompiler

compileToBoolean, compileToItem, compileToPush

Methods inherited from class com.saxonica.bytecode.ExpressionCompiler

allocateStatic, compileItemFromInt, compileItemFromString, compileToLoop, compileToPrimitive, generateMethod, getConfiguration, handleEmptyStringResult, setConfiguration, throwXPathException, throwXPathException, unboxItem, verify, visitAnnotation, visitLineNumber

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SortExpressionCompiler

public SortExpressionCompiler()

Method Detail

compileToIterator

public void compileToIterator(CompilerService compiler,
                              Expression expression)
                       throws CannotCompileException

Description copied from class: ExpressionCompiler

Generate bytecode to evaluate the expression as a SequenceIterator Precondition: none. Postcondition: at execution time, the stack contains a SequenceIterator representing the result of the expression

Specified by:

compileToIterator in class ExpressionCompiler

Parameters:

compiler - the compiler service

expression - the expression to be compiled

Throws:

CannotCompileException

compileSortKeyDefinitions

public static int compileSortKeyDefinitions(CompilerService compiler,
                                            SortKeyDefinition[] definitions)

Generate code to evaluate variable parts of the sort key definitions

Parameters:

compiler -

definitions - the array of sort key definitions

Returns:

the identifier of a variable which will contain the run-time atomic comparers