net.sf.saffron.oj.util
Class JavaRexBuilder

java.lang.Object
  |
  +--net.sf.saffron.rex.RexBuilder
        |
        +--net.sf.saffron.oj.util.JavaRexBuilder

public class JavaRexBuilder

extends RexBuilder

Extends RexBuilder to builds row-expressions including those involving Java code.

Since:

Nov 23, 2003

Version:

$Id: $

Author:

jhyde

See Also:

JavaRowExpression

Nested Class Summary

private static class

JavaRexBuilder.OJTranslator

Field Summary

(package private) JavaRexBuilder.OJTranslator

translator

Fields inherited from class net.sf.saffron.rex.RexBuilder

operatorTable, typeFactory

Constructor Summary

JavaRexBuilder(SaffronTypeFactory typeFactory)

Method Summary

RexNode	createMethodCall(Environment env, RexNode exp, String methodName, List args) Creates a call to a Java method.
SqlOperator	getOperator(RexKind kind)
RexNode	makeCase(RexNode rexCond, RexNode rexTrueCase, RexNode rexFalseCase)
RexNode	makeCast(SaffronType type, RexNode exp)
RexNode	makeFieldAccess(RexNode exp, String fieldName)
RexNode	makeJava(Environment env, Expression expr)
RexLiteral	makeLiteral(boolean b) Creates a boolean literal.
RexLiteral	makeLiteral(double d) Creates a double-precision literal.
RexLiteral	makeLiteral(long i) Creates an integer literal.
RexLiteral	makeLiteral(String s) Creates a varchar literal.

Methods inherited from class net.sf.saffron.rex.RexBuilder

constantNull, getOperator, getTypeFactory, makeCall, makeCall, makeCall, makeCall, makeCall, makeCorrel, makeFieldAccess, makeInputRef, makeLiteral, makeLiteral, makeLiteral, makeLiteral, makeRangeReference, makeRangeReference

Methods inherited from class java.lang.Object

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

Field Detail

translator

JavaRexBuilder.OJTranslator translator

Constructor Detail

JavaRexBuilder

public JavaRexBuilder(SaffronTypeFactory typeFactory)

Method Detail

makeFieldAccess

public RexNode makeFieldAccess(RexNode exp,
                               String fieldName)

Overrides:

makeFieldAccess in class RexBuilder

createMethodCall

public RexNode createMethodCall(Environment env,
                                RexNode exp,
                                String methodName,
                                List args)

Creates a call to a Java method.

Parameters:

exp - Target of the method

methodName - Name of the method

args - Argument expressions; null means no arguments

Returns:

Method call

makeJava

public RexNode makeJava(Environment env,
                        Expression expr)

makeLiteral

public RexLiteral makeLiteral(boolean b)

Description copied from class: RexBuilder

Creates a boolean literal.

Overrides:

makeLiteral in class RexBuilder

makeLiteral

public RexLiteral makeLiteral(long i)

Description copied from class: RexBuilder

Creates an integer literal.

Overrides:

makeLiteral in class RexBuilder

makeLiteral

public RexLiteral makeLiteral(double d)

Description copied from class: RexBuilder

Creates a double-precision literal.

Overrides:

makeLiteral in class RexBuilder

makeLiteral

public RexLiteral makeLiteral(String s)

Description copied from class: RexBuilder

Creates a varchar literal.

Overrides:

makeLiteral in class RexBuilder

makeCase

public RexNode makeCase(RexNode rexCond,
                        RexNode rexTrueCase,
                        RexNode rexFalseCase)

getOperator

public SqlOperator getOperator(RexKind kind)

makeCast

public RexNode makeCast(SaffronType type,
                        RexNode exp)

Overrides:

makeCast in class RexBuilder