Class LogicalExpressionParser

java.lang.Object

parser.logical.AbstractSplittingParser

parser.logical.LogicalExpressionParser

All Implemented Interfaces:

LogicalExpressionMemberFactory.LogicalExpressionMember

public class LogicalExpressionParser
extends AbstractSplittingParser
implements LogicalExpressionMemberFactory.LogicalExpressionMember

Field Summary

Fields

Modifier and Type	Field	Description
private static final String[]	chars1
private static final String[]	chars2
private static final String[]	secchars1
private static final String[]	secchars2
private final LogicalExpressionMemberFactory	subexpressionFactory

Fields inherited from class AbstractSplittingParser

log, split

Constructor Summary

Constructors

Constructor	Description
LogicalExpressionParser(String expression, ExpressionLogger log)
LogicalExpressionParser(String expression, ExpressionLogger log, LogicalExpressionMemberFactory subexpressionFactory)

Method Summary

Modifier and Type	Method	Description
boolean	evaluate()	The method should understand true/false strings, if it is supposed to be used in more complicated expressions.
String	getName()
String[]	getPrimaryChars1()	Primary characters are processed first.
String[]	getPrimaryChars2()	Primary characters are processed first.
String[]	getSecondaryChars1()	Primary characters are processed first.
String[]	getSecondaryChars2()	Primary characters are processed first.
LogicalExpressionMemberFactory	getSubexpressionFactory()
boolean	isLogicalExpressionMember(String originalExpression)	ParserNG have a habit, that expression is parsed in constructor, and later evaluated in methood.

Methods inherited from class AbstractSplittingParser

concatWithArrayCopy, getHelp, getOriginal, split, toPattern

Methods inherited from class Object

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

Methods inherited from interface LogicalExpressionMemberFactory.LogicalExpressionMember

getHelp

Field Details

chars1

private static final String[] chars1

chars2

private static final String[] chars2

secchars1

private static final String[] secchars1

secchars2

private static final String[] secchars2

subexpressionFactory

private final LogicalExpressionMemberFactory subexpressionFactory

Constructor Details

LogicalExpressionParser

public LogicalExpressionParser(String expression,
 ExpressionLogger log)

LogicalExpressionParser

public LogicalExpressionParser(String expression,
 ExpressionLogger log,
 LogicalExpressionMemberFactory subexpressionFactory)

Method Details

isLogicalExpressionMember

public boolean isLogicalExpressionMember(String originalExpression)

Description copied from interface: LogicalExpressionMemberFactory.LogicalExpressionMember

ParserNG have a habit, that expression is parsed in constructor, and later evaluated in methood. So this methid is takin parameter, of future expression, created over dummy example, so we know, whether it will be viable for future constructor.

Specified by:

isLogicalExpressionMember in interface LogicalExpressionMemberFactory.LogicalExpressionMember

Parameters:

originalExpression - future expression to be passed to constructor

Returns:

whether the expression is most likely targeted for this parser

getPrimaryChars1

public String[] getPrimaryChars1()

Description copied from class: AbstractSplittingParser

Primary characters are processed first. Seondary second. The reason is, if some char is substring of another. Then first msut go the longer ones (which may contain secondary as substring) the goes secondary. Yah. it can be done bette.. by sorting by lenght and so on... but maybe next tim PrimaryChars1 are allowed without spaces

Specified by:

getPrimaryChars1 in class AbstractSplittingParser

Returns:

strings which are substituted first

getPrimaryChars2

public String[] getPrimaryChars2()

Description copied from class: AbstractSplittingParser

Primary characters are processed first. Seondary second. The reason is, if some char is substring of another. Then first msut go the longer ones (which may contain secondary as substring) the goes secondary. Yah. it can be done bette.. by sorting by lenght and so on... but maybe next tim PrimaryChars2 are NOT allowed without spaces

Specified by:

getPrimaryChars2 in class AbstractSplittingParser

Returns:

strings which are substituted first

getSecondaryChars1

public String[] getSecondaryChars1()

Description copied from class: AbstractSplittingParser

Primary characters are processed first. Seondary second. The reason is, if some char is substring of another. Then first msut go the longer ones (which may contain secondary as substring) the goes secondary. Yah. it can be done bette.. by sorting by lenght and so on... but maybe next tim SecondaryChars1 are allowed without spaces

Specified by:

getSecondaryChars1 in class AbstractSplittingParser

Returns:

characters which are subsituted second

getSecondaryChars2

public String[] getSecondaryChars2()

Description copied from class: AbstractSplittingParser

Primary characters are processed first. Seondary second. The reason is, if some char is substring of another. Then first msut go the longer ones (which may contain secondary as substring) the goes secondary. Yah. it can be done bette.. by sorting by lenght and so on... but maybe next tim SecondaryChars2 are NOT allowed without spaces

Specified by:

getSecondaryChars2 in class AbstractSplittingParser

Returns:

characters which are subsituted second

evaluate

public boolean evaluate()

Description copied from interface: LogicalExpressionMemberFactory.LogicalExpressionMember

The method should understand true/false strings, if it is supposed to be used in more complicated expressions.

Specified by:

evaluate in interface LogicalExpressionMemberFactory.LogicalExpressionMember

Specified by:

evaluate in class AbstractSplittingParser

Returns:

evaluated expression, usually parsed in constructor

getName

public String getName()

Specified by:

getName in class AbstractSplittingParser

getSubexpressionFactory

public LogicalExpressionMemberFactory getSubexpressionFactory()