psdi.common.parse

Class ParseExpression

java.lang.Object

psdi.common.parse.ParseExpression

All Implemented Interfaces:

ParseExpressionConstants

public class ParseExpression
extends java.lang.Object
implements ParseExpressionConstants

Field Summary

Fields

Modifier and Type	Field and Description
Token	jj_nt Next token.
Token	token Current token.
ParseExpressionTokenManager	token_source Generated Token Manager.

Fields inherited from interface psdi.common.parse.ParseExpressionConstants

AND, AVG, BETWEEN, COMPAREOP, CUSTOM, DEFAULT, EOF, EXP, EXPONENT, FLOATING_POINT_LITERAL, ID, IN, INTEGER_LITERAL, IS, LENGTH, LIKE, LOWER, MAX, MIN, NOT, NULL, OR, POW, ROUND, SQL, SQRT, STDDEV, STRING_LITERAL, TODATE, tokenImage, UPPER

Constructor Summary

Constructors

Constructor and Description
ParseExpression(java.io.InputStream stream) Constructor with InputStream.
ParseExpression(java.io.InputStream stream, java.lang.String encoding) Constructor with InputStream and supplied encoding
ParseExpression(ParseExpressionTokenManager tm) Constructor with generated Token Manager.
ParseExpression(java.io.Reader stream) Constructor.

Method Summary

Modifier and Type	Method and Description
TreeNode	andExpression()
TreeNode	betweenClause(TreeNode operand)
TreeNode	BuiltInFunction()
TreeNode	clause()
TreeNode	compareExprRight(TreeNode operand)
java.lang.String	compareOp()
TreeNode	comparisonExpression()
void	disable_tracing() Disable tracing.
void	enable_tracing() Enable tracing.
java.util.Vector	functionArgs()
ParseException	generateParseException() Generate ParseException.
Token	getNextToken() Get the next Token.
Token	getToken(int index) Get the specific Token.
Token	identifier()
TreeNode	inClause(TreeNode operand)
TreeNode	input() Top-down parser grammer.
TreeNode	isClause()
TreeNode	likeClause(TreeNode operand)
TreeNode	literal()
TreeNode	logicalExpression()
TreeNode	notExpression()
TreeNode	orExpression()
TreeNode	productExpression()
void	ReInit(java.io.InputStream stream) Reinitialise.
void	ReInit(java.io.InputStream stream, java.lang.String encoding) Reinitialise.
void	ReInit(ParseExpressionTokenManager tm) Reinitialise.
void	ReInit(java.io.Reader stream) Reinitialise.
TreeNode	SQLPattern()
TreeNode	sumExpression()
TreeNode	Term()
TreeNode	unaryExpression()
java.util.Vector	valueList()
TreeNode	vlElement()

Methods inherited from class java.lang.Object

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

Field Detail

token_source

public ParseExpressionTokenManager token_source

Generated Token Manager.

token

public Token token

Current token.

jj_nt

public Token jj_nt

Next token.

Constructor Detail

ParseExpression

public ParseExpression(java.io.InputStream stream)

Constructor with InputStream.

ParseExpression

public ParseExpression(java.io.InputStream stream,
                       java.lang.String encoding)

Constructor with InputStream and supplied encoding

ParseExpression

public ParseExpression(java.io.Reader stream)

Constructor.

ParseExpression

public ParseExpression(ParseExpressionTokenManager tm)

Constructor with generated Token Manager.

Method Detail

identifier

public final Token identifier()
                       throws ParseException

Throws:

ParseException

input

public final TreeNode input()
                     throws ParseException

Top-down parser grammer. This is the top of the tree. Read it this way: a valid expression input is composed of a clause followed by an EOF. A clause is composed of a logical expression. A logical expression is composed of ... Eventually we get down to the Terms.

Throws:

ParseException

clause

public final TreeNode clause()
                      throws ParseException

Throws:

ParseException

logicalExpression

public final TreeNode logicalExpression()
                                 throws ParseException

Throws:

ParseException

orExpression

public final TreeNode orExpression()
                            throws ParseException

Throws:

ParseException

andExpression

public final TreeNode andExpression()
                             throws ParseException

Throws:

ParseException

notExpression

public final TreeNode notExpression()
                             throws ParseException

Throws:

ParseException

comparisonExpression

public final TreeNode comparisonExpression()
                                    throws ParseException

Throws:

ParseException

compareExprRight

public final TreeNode compareExprRight(TreeNode operand)
                                throws ParseException

Throws:

ParseException

isClause

public final TreeNode isClause()
                        throws ParseException

Throws:

ParseException

sumExpression

public final TreeNode sumExpression()
                             throws ParseException

Throws:

ParseException

productExpression

public final TreeNode productExpression()
                                 throws ParseException

Throws:

ParseException

unaryExpression

public final TreeNode unaryExpression()
                               throws ParseException

Throws:

ParseException

Term

public final TreeNode Term()
                    throws ParseException

Throws:

ParseException

BuiltInFunction

public final TreeNode BuiltInFunction()
                               throws ParseException

Throws:

ParseException

functionArgs

public final java.util.Vector functionArgs()
                                    throws ParseException

Throws:

ParseException

likeClause

public final TreeNode likeClause(TreeNode operand)
                          throws ParseException

Throws:

ParseException

SQLPattern

public final TreeNode SQLPattern()
                          throws ParseException

Throws:

ParseException

inClause

public final TreeNode inClause(TreeNode operand)
                        throws ParseException

Throws:

ParseException

valueList

public final java.util.Vector valueList()
                                 throws ParseException

Throws:

ParseException

vlElement

public final TreeNode vlElement()
                         throws ParseException

Throws:

ParseException

betweenClause

public final TreeNode betweenClause(TreeNode operand)
                             throws ParseException

Throws:

ParseException

compareOp

public final java.lang.String compareOp()
                                 throws ParseException

Throws:

ParseException

literal

public final TreeNode literal()
                       throws ParseException

Throws:

ParseException

ReInit

public void ReInit(java.io.InputStream stream)

Reinitialise.

ReInit

public void ReInit(java.io.InputStream stream,
                   java.lang.String encoding)

Reinitialise.

ReInit

public void ReInit(java.io.Reader stream)

Reinitialise.

ReInit

public void ReInit(ParseExpressionTokenManager tm)

Reinitialise.

getNextToken

public final Token getNextToken()

Get the next Token.

getToken

public final Token getToken(int index)

Get the specific Token.

generateParseException

public ParseException generateParseException()

Generate ParseException.

enable_tracing

public final void enable_tracing()

Enable tracing.

disable_tracing

public final void disable_tracing()

Disable tracing.