com.satline.expr.compiler
Class ExpressionDecompiler

java.lang.Object
  com.satline.expr.compiler.ExpressionDecompiler

All Implemented Interfaces:

ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

public class ExpressionDecompiler
extends java.lang.Object
implements ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Author:

tomas.teubner

Field Summary

protected java.util.Locale	locale
protected int	options
protected java.lang.StringBuffer	sb

Constructor Summary

ExpressionDecompiler(java.util.Locale locale, int options)

Method Summary

java.lang.StringBuffer	visitAbsFunction(AbsFunctionTerm t, ExpressionDecompilerContext arg) Visit an abs function term.
java.lang.StringBuffer	visitAddition(AdditionTerm t, ExpressionDecompilerContext arg) Visit an addition term.
java.lang.StringBuffer	visitAndTerm(AndTerm t, ExpressionDecompilerContext arg) Visit an and term.
java.lang.StringBuffer	visitBooleanConstant(java.lang.Boolean b, ExpressionDecompilerContext arg) Visit a boolean constant.
java.lang.StringBuffer	visitConcatenationTerm(ConcatenationTerm t, ExpressionDecompilerContext arg) Visit a concatenation term.
java.lang.StringBuffer	visitCurrentDateFunction(CurrentDateFunctionTerm t, ExpressionDecompilerContext arg) Visit a current date function term.
java.lang.StringBuffer	visitDateConstant(java.util.Date d, ExpressionDecompilerContext arg) Visit a date constant
java.lang.StringBuffer	visitDivision(DivisionTerm t, ExpressionDecompilerContext arg) Visit a division term.
java.lang.StringBuffer	visitEquality(EqualityTerm t, ExpressionDecompilerContext arg) Visit an equality term.
java.lang.StringBuffer	visitGreaterEqual(GreaterEqualTerm t, ExpressionDecompilerContext arg) Visit a greater equal term.
java.lang.StringBuffer	visitGreaterThan(GreaterTerm t, ExpressionDecompilerContext arg) Visit a greater than term.
java.lang.StringBuffer	visitInequality(InequalityTerm t, ExpressionDecompilerContext arg) Visit an inequality term.
java.lang.StringBuffer	visitInTerm(InTerm t, ExpressionDecompilerContext arg) Visit an in term.
java.lang.StringBuffer	visitIsNotNull(IsNotNullTerm t, ExpressionDecompilerContext arg) Visit an is null term.
java.lang.StringBuffer	visitIsNull(IsNullTerm t, ExpressionDecompilerContext arg) Visit an is null term.
java.lang.StringBuffer	visitLengthFunction(LengthFunctionTerm t, ExpressionDecompilerContext arg) Visit a length function term.
java.lang.StringBuffer	visitLessEqual(LessEqualTerm t, ExpressionDecompilerContext arg) Visit a less equal term.
java.lang.StringBuffer	visitLessThan(LessTerm t, ExpressionDecompilerContext arg) Visit a less than term.
java.lang.StringBuffer	visitLikeTerm(LikeTerm t, ExpressionDecompilerContext arg) Visit a like term.
java.lang.StringBuffer	visitLowerFunction(LowerFunctionTerm t, ExpressionDecompilerContext arg) Visit a lower function term.
java.lang.StringBuffer	visitMatchTerm(MatchTerm t, ExpressionDecompilerContext arg) Visit a regular expression match term.
java.lang.StringBuffer	visitMultiplication(MultiplicationTerm t, ExpressionDecompilerContext arg) Visit a multiplication term.
java.lang.StringBuffer	visitNegation(NegationTerm t, ExpressionDecompilerContext arg) Visit a concatenation term.
java.lang.StringBuffer	visitNotInTerm(NotInTerm t, ExpressionDecompilerContext arg) Visit a not in term.
java.lang.StringBuffer	visitNotLikeTerm(NotLikeTerm t, ExpressionDecompilerContext arg) Visit a not like term.
java.lang.StringBuffer	visitNumberConstant(java.lang.Number n, ExpressionDecompilerContext arg) Visit a numeric constant
java.lang.StringBuffer	visitOrTerm(OrTerm t, ExpressionDecompilerContext arg) Visit an or term.
java.lang.StringBuffer	visitReplaceFunction(ReplaceFunctionTerm t, ExpressionDecompilerContext arg) Visit a replace function term.
java.lang.StringBuffer	visitSignChange(SignChangeTerm t, ExpressionDecompilerContext arg) Visit a sign change term.
java.lang.StringBuffer	visitStringConstant(java.lang.String s, ExpressionDecompilerContext arg) Visit a string constant.
java.lang.StringBuffer	visitSubstrFunction(SubstrFunctionTerm t, ExpressionDecompilerContext arg) Visit a substring function term.
java.lang.StringBuffer	visitSubtraction(SubtractionTerm t, ExpressionDecompilerContext arg) Visit a subtraction term.
java.lang.StringBuffer	visitTrimFunction(TrimFunctionTerm t, ExpressionDecompilerContext arg) Visit a trim function term.
java.lang.StringBuffer	visitUpperFunction(UpperFunctionTerm t, ExpressionDecompilerContext arg) Visit a upper function term.
java.lang.StringBuffer	visitVariable(Variable variable, ExpressionDecompilerContext arg) Visit a variable.

Methods inherited from class java.lang.Object

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

Field Detail

sb

protected java.lang.StringBuffer sb

locale

protected java.util.Locale locale

options

protected int options

Constructor Detail

ExpressionDecompiler

public ExpressionDecompiler(java.util.Locale locale,
                            int options)

Method Detail

visitBooleanConstant

public java.lang.StringBuffer visitBooleanConstant(java.lang.Boolean b,
                                                   ExpressionDecompilerContext arg)
                                            throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a boolean constant.

Specified by:

visitBooleanConstant in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Parameters:

b - - boolean constant

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitStringConstant

public java.lang.StringBuffer visitStringConstant(java.lang.String s,
                                                  ExpressionDecompilerContext arg)
                                           throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a string constant.

Specified by:

visitStringConstant in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Parameters:

s - - string constant

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitNumberConstant

public java.lang.StringBuffer visitNumberConstant(java.lang.Number n,
                                                  ExpressionDecompilerContext arg)
                                           throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a numeric constant

Specified by:

visitNumberConstant in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Parameters:

n - - numeric constant

arg - - implementation dependent argument

Returns:

implementation dependent value

Throws:

ExpressionException

visitDateConstant

public java.lang.StringBuffer visitDateConstant(java.util.Date d,
                                                ExpressionDecompilerContext arg)
                                         throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a date constant

Specified by:

visitDateConstant in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Parameters:

d - - date constant

arg - - implementation dependent argument

Returns:

implementation dependent value

Throws:

ExpressionException

visitVariable

public java.lang.StringBuffer visitVariable(Variable variable,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a variable.

Specified by:

visitVariable in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitAddition

public java.lang.StringBuffer visitAddition(AdditionTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an addition term.

Specified by:

visitAddition in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitSubtraction

public java.lang.StringBuffer visitSubtraction(SubtractionTerm t,
                                               ExpressionDecompilerContext arg)
                                        throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a subtraction term.

Specified by:

visitSubtraction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitMultiplication

public java.lang.StringBuffer visitMultiplication(MultiplicationTerm t,
                                                  ExpressionDecompilerContext arg)
                                           throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a multiplication term.

Specified by:

visitMultiplication in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitDivision

public java.lang.StringBuffer visitDivision(DivisionTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a division term.

Specified by:

visitDivision in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitEquality

public java.lang.StringBuffer visitEquality(EqualityTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an equality term.

Specified by:

visitEquality in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitInequality

public java.lang.StringBuffer visitInequality(InequalityTerm t,
                                              ExpressionDecompilerContext arg)
                                       throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an inequality term.

Specified by:

visitInequality in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitLessThan

public java.lang.StringBuffer visitLessThan(LessTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a less than term.

Specified by:

visitLessThan in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitLessEqual

public java.lang.StringBuffer visitLessEqual(LessEqualTerm t,
                                             ExpressionDecompilerContext arg)
                                      throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a less equal term.

Specified by:

visitLessEqual in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitGreaterThan

public java.lang.StringBuffer visitGreaterThan(GreaterTerm t,
                                               ExpressionDecompilerContext arg)
                                        throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a greater than term.

Specified by:

visitGreaterThan in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitGreaterEqual

public java.lang.StringBuffer visitGreaterEqual(GreaterEqualTerm t,
                                                ExpressionDecompilerContext arg)
                                         throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a greater equal term.

Specified by:

visitGreaterEqual in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitInTerm

public java.lang.StringBuffer visitInTerm(InTerm t,
                                          ExpressionDecompilerContext arg)
                                   throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an in term.

Specified by:

visitInTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitNotInTerm

public java.lang.StringBuffer visitNotInTerm(NotInTerm t,
                                             ExpressionDecompilerContext arg)
                                      throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a not in term.

Specified by:

visitNotInTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitLikeTerm

public java.lang.StringBuffer visitLikeTerm(LikeTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a like term.

Specified by:

visitLikeTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitMatchTerm

public java.lang.StringBuffer visitMatchTerm(MatchTerm t,
                                             ExpressionDecompilerContext arg)
                                      throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a regular expression match term.

Specified by:

visitMatchTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

Returns:

Throws:

ExpressionException

visitNotLikeTerm

public java.lang.StringBuffer visitNotLikeTerm(NotLikeTerm t,
                                               ExpressionDecompilerContext arg)
                                        throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a not like term.

Specified by:

visitNotLikeTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitAndTerm

public java.lang.StringBuffer visitAndTerm(AndTerm t,
                                           ExpressionDecompilerContext arg)
                                    throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an and term.

Specified by:

visitAndTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitOrTerm

public java.lang.StringBuffer visitOrTerm(OrTerm t,
                                          ExpressionDecompilerContext arg)
                                   throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an or term.

Specified by:

visitOrTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitConcatenationTerm

public java.lang.StringBuffer visitConcatenationTerm(ConcatenationTerm t,
                                                     ExpressionDecompilerContext arg)
                                              throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a concatenation term.

Specified by:

visitConcatenationTerm in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitSignChange

public java.lang.StringBuffer visitSignChange(SignChangeTerm t,
                                              ExpressionDecompilerContext arg)
                                       throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a sign change term.

Specified by:

visitSignChange in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitNegation

public java.lang.StringBuffer visitNegation(NegationTerm t,
                                            ExpressionDecompilerContext arg)
                                     throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a concatenation term.

Specified by:

visitNegation in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitIsNull

public java.lang.StringBuffer visitIsNull(IsNullTerm t,
                                          ExpressionDecompilerContext arg)
                                   throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an is null term.

Specified by:

visitIsNull in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitIsNotNull

public java.lang.StringBuffer visitIsNotNull(IsNotNullTerm t,
                                             ExpressionDecompilerContext arg)
                                      throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an is null term.

Specified by:

visitIsNotNull in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitAbsFunction

public java.lang.StringBuffer visitAbsFunction(AbsFunctionTerm t,
                                               ExpressionDecompilerContext arg)
                                        throws ExpressionException

Description copied from interface: ExpressionWalker

Visit an abs function term.

Specified by:

visitAbsFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitLengthFunction

public java.lang.StringBuffer visitLengthFunction(LengthFunctionTerm t,
                                                  ExpressionDecompilerContext arg)
                                           throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a length function term.

Specified by:

visitLengthFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitTrimFunction

public java.lang.StringBuffer visitTrimFunction(TrimFunctionTerm t,
                                                ExpressionDecompilerContext arg)
                                         throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a trim function term.

Specified by:

visitTrimFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitUpperFunction

public java.lang.StringBuffer visitUpperFunction(UpperFunctionTerm t,
                                                 ExpressionDecompilerContext arg)
                                          throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a upper function term.

Specified by:

visitUpperFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitLowerFunction

public java.lang.StringBuffer visitLowerFunction(LowerFunctionTerm t,
                                                 ExpressionDecompilerContext arg)
                                          throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a lower function term.

Specified by:

visitLowerFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitSubstrFunction

public java.lang.StringBuffer visitSubstrFunction(SubstrFunctionTerm t,
                                                  ExpressionDecompilerContext arg)
                                           throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a substring function term.

Specified by:

visitSubstrFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitCurrentDateFunction

public java.lang.StringBuffer visitCurrentDateFunction(CurrentDateFunctionTerm t,
                                                       ExpressionDecompilerContext arg)
                                                throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a current date function term.

Specified by:

visitCurrentDateFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

visitReplaceFunction

public java.lang.StringBuffer visitReplaceFunction(ReplaceFunctionTerm t,
                                                   ExpressionDecompilerContext arg)
                                            throws ExpressionException

Description copied from interface: ExpressionWalker

Visit a replace function term.

Specified by:

visitReplaceFunction in interface ExpressionWalker<java.lang.StringBuffer,ExpressionDecompilerContext>

arg - - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException