Package org.compiere.util

Class Evaluator

java.lang.Object

org.compiere.util.Evaluator

public class Evaluator
extends Object

Expression Evaluator

Version:

$Id: Evaluator.java,v 1.3 2006/07/30 00:54:36 jjanke Exp $

Author:

Jorg Janke

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Evaluator.SQLLogicResult	Value object for SQL logic result

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ID_COLUMN_SUFFIX
static final String	VARIABLE_DEFAULT_VALUE_OPERATOR
static final String	VARIABLE_FORMATTING_OPERATOR_END
static final String	VARIABLE_FORMATTING_OPERATOR_START
static final String	VARIABLE_PO_PROPERTY_OPERATOR
static final String	VARIABLE_REFERENCE_OPERATOR
static final String	VARIABLE_SELF_TAB_OPERATOR
static final String	VARIABLE_START_END_MARKER
static final String	VARIABLE_TAB_NO_SEPARATOR

Constructor Summary

Constructors

Constructor	Description
Evaluator()

Method Summary

Modifier and Type	Method	Description
static boolean	evaluateLogic(Evaluatee source, String logic)	Evaluate logic expression
static boolean	isAllVariablesDefined(Evaluatee source, String logic)	Check if All Variables are Defined
static void	parseDepends(ArrayList<String> list, String parseString)	Parse expression and add variables with @ to the list.
static boolean	parseSQLLogic(String sqlLogic, Properties ctx, int windowNo, int tabNo, String targetObjectName)	Evaluate a SQL logic expression (with @SQL= prefix)

Methods inherited from class java.lang.Object

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

Field Details

VARIABLE_PO_PROPERTY_OPERATOR

public static final String VARIABLE_PO_PROPERTY_OPERATOR

See Also:

• Constant Field Values

VARIABLE_FORMATTING_OPERATOR_START

public static final String VARIABLE_FORMATTING_OPERATOR_START

See Also:

• Constant Field Values

VARIABLE_FORMATTING_OPERATOR_END

public static final String VARIABLE_FORMATTING_OPERATOR_END

See Also:

• Constant Field Values

VARIABLE_DEFAULT_VALUE_OPERATOR

public static final String VARIABLE_DEFAULT_VALUE_OPERATOR

See Also:

• Constant Field Values

VARIABLE_START_END_MARKER

public static final String VARIABLE_START_END_MARKER

See Also:

• Constant Field Values

VARIABLE_SELF_TAB_OPERATOR

public static final String VARIABLE_SELF_TAB_OPERATOR

See Also:

• Constant Field Values

VARIABLE_REFERENCE_OPERATOR

public static final String VARIABLE_REFERENCE_OPERATOR

See Also:

• Constant Field Values

VARIABLE_TAB_NO_SEPARATOR

public static final String VARIABLE_TAB_NO_SEPARATOR

See Also:

• Constant Field Values

ID_COLUMN_SUFFIX

public static final String ID_COLUMN_SUFFIX

See Also:

• Constant Field Values

Constructor Details

Evaluator

public Evaluator()

Method Details

isAllVariablesDefined

public static boolean isAllVariablesDefined(Evaluatee source,
 String logic)

Check if All Variables are Defined

Parameters:

source - source

logic - logic info

Returns:

true if fully defined

evaluateLogic

public static boolean evaluateLogic(Evaluatee source,
 String logic)

Evaluate logic expression

Parameters:

source - class implementing get_ValueAsString(variable)

logic - logic expression

Returns:

logic result

See Also:

• LogicEvaluator.evaluateLogic(Evaluatee, String)

parseDepends

public static void parseDepends(ArrayList<String> list,
 String parseString)

Parse expression and add variables with @ to the list.

Parameters:

list - list to be added to

parseString - expression to parse for variables

parseSQLLogic

public static boolean parseSQLLogic(String sqlLogic,
 Properties ctx,
 int windowNo,
 int tabNo,
 String targetObjectName)

Evaluate a SQL logic expression (with @SQL= prefix)

Parameters:

sqlLogic -

ctx -

windowNo -

tabNo -

targetObjectName - expression logic is evaluated for, that target object (for logging purpose) can be field name, toolbar button name,..

Returns:

result of logic expression