com.saxonica.codegen
Class BlockCompiler

java.lang.Object
  com.saxonica.codegen.ExpressionCompiler
      com.saxonica.codegen.PushExpressionCompiler
          com.saxonica.codegen.BlockCompiler

public class BlockCompiler
extends PushExpressionCompiler

Generate Java code for a Block, that is a sequence of expressions or instructions

Constructor Summary

BlockCompiler()

Method Summary

void	compilePush(CompilerService compiler, Expression exp) Generate Java code to execute the expression in push mode, that is, code to write events to the current output Receiver
String	compileToIterator(CompilerService compiler, Expression expr) Generate Java code to evaluate the expression as a SequenceIterator
String	compileToValueRepresentation(CompilerService compiler, Expression expr) Generate Java code to evaluate the expression as a ValueRepresentation

Methods inherited from class com.saxonica.codegen.PushExpressionCompiler

compileToCharSequence, compileToEffectiveBooleanValue, compileToItem, getStaticBaseURI, prepareToPush

Methods inherited from class com.saxonica.codegen.ExpressionCompiler

compileAsLoop

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockCompiler

public BlockCompiler()

Method Detail

compilePush

public void compilePush(CompilerService compiler,
                        Expression exp)

Description copied from class: ExpressionCompiler

Generate Java code to execute the expression in push mode, that is, code to write events to the current output Receiver

Specified by:

compilePush in class ExpressionCompiler

Parameters:

compiler - the compiler service

exp - the expression to be compiled

compileToValueRepresentation

public String compileToValueRepresentation(CompilerService compiler,
                                           Expression expr)

Description copied from class: ExpressionCompiler

Generate Java code to evaluate the expression as a ValueRepresentation

Overrides:

compileToValueRepresentation in class ExpressionCompiler

Parameters:

compiler - the compiler service

expr - the expression to be compiled

Returns:

a simple Java expression (usually the name of a variable that has been declared) which will be of class ValueRepresentation, and which at run-time will hold the value of the expression

compileToIterator

public String compileToIterator(CompilerService compiler,
                                Expression expr)

Description copied from class: ExpressionCompiler

Generate Java code to evaluate the expression as a SequenceIterator

Overrides:

compileToIterator in class PushExpressionCompiler

Parameters:

compiler - the compiler service

expr - the XPath expression to be compiled

Returns:

a simple Java expression (usually the name of a variable that has been declared) which will be of class SequenceIterator, and which at run-time will hold an iterator over the the value of the XPath expression