org.drools.decisiontable.parser

Class RuleMatrixSheetListener

java.lang.Object

org.drools.decisiontable.parser.DefaultRuleSheetListener

org.drools.decisiontable.parser.RuleMatrixSheetListener

All Implemented Interfaces:

RuleSheetListener, org.drools.template.parser.DataListener

public class RuleMatrixSheetListener
extends DefaultRuleSheetListener

href="mailto:michael.neale@gmail.com"> Michael Neale Define a ruleset spreadsheet which contains a matrix style decision tables. This is an example of a custom RuleSheetListener. It differs from the standard decision table in the following ways: - AgendaGroup property so that all rules fall within the same agenda-group - Precondition property which specifies a condition that is always included if a rule is being generated - Action property. Each cell within the decision table causes this action to be triggered - HorizontalCondition property. Each column header in the matrix applies this condition - VerticalCondition property. Each row header in the matrix applies this condition A table is identifed by a cell beginning with the text "RuleTable". The cells after RuleTable in the same row identify the Horizontal Conditions. The cells after RuleTable in the same column identify the Vertical Conditions. The cells with the matrix identify the actions. Wherever an action cell exists for a Vertical/Horizontal condition intersection the following rule is created: rule "rule_row_col" agenda-group AgendaGroup when Precondition VerticalCondition HorizontalCondition then Action end

Field Summary

Fields

Modifier and Type	Field and Description
static String	ACTION_TAG
static String	AGENDAGROUP_TAG
static String	HORIZONTALCONDITION_TAG
static String	PRECONDITION_TAG
static String	VERTICALCONDITION_TAG

Fields inherited from class org.drools.decisiontable.parser.DefaultRuleSheetListener

DECLARES_TAG, ESCAPE_QUOTES_FLAG, FUNCTIONS_TAG, IMPORT_TAG, MAX_SALIENCE_TAG, MIN_SALIENCE_TAG, NUMERIC_DISABLED_FLAG, QUERIES_TAG, RULE_TABLE_TAG, RULESET_TAG, SEQUENTIAL_FLAG, UNIT_TAG, VARIABLES_TAG

Fields inherited from interface org.drools.template.parser.DataListener

NON_MERGED

Constructor Summary

Constructors

Constructor and Description
RuleMatrixSheetListener()

Method Summary

Modifier and Type	Method and Description
void	finishSheet()
void	newCell(int row, int column, String value, int mergedColStart)
void	newRow(int rowNumber, int columns)
protected void	postInitRuleTable(int row, int column, String value) Called after rule table initialisation.
protected void	preInitRuleTable(int row, int column, String value) This gets called each time a "new" rule table is found.

Methods inherited from class org.drools.decisiontable.parser.DefaultRuleSheetListener

addRule, getCurrentRule, getProperties, getRuleSet, isNumericDisabled, setWorksheetName, startSheet

Methods inherited from class java.lang.Object

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

Field Detail

AGENDAGROUP_TAG

public static final String AGENDAGROUP_TAG

See Also:

Constant Field Values

PRECONDITION_TAG

public static final String PRECONDITION_TAG

See Also:

Constant Field Values

ACTION_TAG

public static final String ACTION_TAG

See Also:

Constant Field Values

HORIZONTALCONDITION_TAG

public static final String HORIZONTALCONDITION_TAG

See Also:

Constant Field Values

VERTICALCONDITION_TAG

public static final String VERTICALCONDITION_TAG

See Also:

Constant Field Values

Constructor Detail

RuleMatrixSheetListener

public RuleMatrixSheetListener()

Method Detail

newCell

public void newCell(int row,
                    int column,
                    String value,
                    int mergedColStart)

Specified by:

newCell in interface org.drools.template.parser.DataListener

Overrides:

newCell in class DefaultRuleSheetListener

newRow

public void newRow(int rowNumber,
                   int columns)

Specified by:

newRow in interface org.drools.template.parser.DataListener

Overrides:

newRow in class DefaultRuleSheetListener

finishSheet

public void finishSheet()

Specified by:

finishSheet in interface org.drools.template.parser.DataListener

Overrides:

finishSheet in class DefaultRuleSheetListener

postInitRuleTable

protected void postInitRuleTable(int row,
                                 int column,
                                 String value)

Description copied from class: DefaultRuleSheetListener

Called after rule table initialisation. Subclasses may override this method to do additional processing.

Overrides:

postInitRuleTable in class DefaultRuleSheetListener

preInitRuleTable

protected void preInitRuleTable(int row,
                                int column,
                                String value)

This gets called each time a "new" rule table is found.

Overrides:

preInitRuleTable in class DefaultRuleSheetListener