Class DecisionTable

Method Details

• getName

  public String getName()

• setName

  public DecisionTable setName(String name)

• getDescription

  public String getDescription()

• setDescription

  public DecisionTable setDescription(String description)

• getRootExpressionContext

  public DefaultExpressionContext getRootExpressionContext()

  Returns the context holding the constants set with setValue(String, Object).

• setValue

  public DecisionTable setValue(String name, Object value)

  Adds a constant that the table's field, condition and outcome expressions can use.

• setValue

  public DecisionTable setValue(String name, Object value, Class<?> type)

  Adds a constant of the given type that the table's field, condition and outcome expressions can use.

• getFields

  public List<CalculatedField> getFields()

  Returns the calculated fields, evaluated in order before the rules and available to them as variables.

• addField

  public DecisionTable addField(CalculatedField field)

  Adds a calculated field, evaluated before the rules and available to them as a variable.

• addField

  public DecisionTable addField(String variable, String expression)

  Adds a calculated field that sets variable to the value of expression before the rules are evaluated.

• addField

  public DecisionTable addField(String variable, String expression, boolean includeInOutcome)

• addField

  public DecisionTable addField(Collection<CalculatedField> fields)

  Adds calculated fields, evaluated before the rules and available to them as variables.

• getRules

  public List<DecisionTableRule> getRules()

  Returns the rules, evaluated in order until one fires.

• addRule

  public DecisionTable addRule(DecisionTableRule rule)

  Adds a rule after the existing ones; only the first rule whose conditions all hold fires.

• addRule

  public DecisionTable addRule(Collection<DecisionTableRule> rules)

  Adds rules after the existing ones; only the first rule whose conditions all hold fires.

• getRownum

  public long getRownum()

  Returns the current row number, incremented for each evaluation and available to expressions as rownum.

• getDefaultOutcomes

  public List<DecisionTableOutcome> getDefaultOutcomes()

  Returns the outcomes used when no rule fires.

• addDefaultOutcome

  public DecisionTable addDefaultOutcome(DecisionTableOutcome outcome)

  Adds an outcome used when no rule fires.

• addDefaultOutcome

  public DecisionTable addDefaultOutcome(Collection<DecisionTableOutcome> outcomes)

  Adds outcomes used when no rule fires.

• addDefaultOutcome

  public DecisionTable addDefaultOutcome(String variable, String expression)

  Adds an outcome, used when no rule fires, that sets variable to the value of expression.

• assertValid

  public DecisionTable assertValid()

  Description copied from class: FoundationObject

  Throws a DataException if this object is invalid, otherwise returns it; the base implementation checks nothing.

  Overrides:

  assertValid in class FoundationObject

• evaluate

  public DecisionTableResult evaluate(ExpressionContext expressionContext)

  Evaluates the calculated fields, then the rules in order, and returns the first rule that fires with its outcome, or the default outcomes if none fires.

• addExceptionProperties

  public DataException addExceptionProperties(DataException exception)

  Description copied from class: FoundationObject

  Adds this object's current state to a DataException. Since this method is called whenever an exception is thrown, subclasses should override it to add their specific information.

  Specified by:

  addExceptionProperties in interface DataExceptionContributor

  Overrides:

  addExceptionProperties in class FoundationObject

• toXml

  public DecisionTable toXml(Writer writer)

  Description copied from interface: XmlSerializable

  Writes this object as indented XML, without a declaration, to the writer and then closes it.

• fromXml

  public DecisionTable fromXml(InputStream inputStream)

  Description copied from interface: XmlSerializable

  Parses the XML in the stream and loads this object's state from its root element.

• toRecord

  public Record toRecord()

  Description copied from interface: RecordSerializable

  Converts this object's state to a record that RecordSerializable.fromRecord(Record) can load.

  Specified by:

  toRecord in interface RecordSerializable

  Overrides:

  toRecord in class Bean

• fromRecord

  public DecisionTable fromRecord(Record source)

  Description copied from interface: RecordSerializable

  Loads this instance's state from a record and returns this (for fluid API call chaining). For fluid API call chaining, the overridden method should change the declared return type to its class.

  Specified by:

  fromRecord in interface RecordSerializable

  Overrides:

  fromRecord in class Bean

  Parameters:

  source -

  Returns:

  this instance.

• fromJson

  public DecisionTable fromJson(String jsonString)

  Description copied from interface: JsonSerializable

  Loads this object's state from the given JSON text.

• toXmlElement

  public Element toXmlElement(Document document)

  Description copied from interface: XmlSerializable

  Returns an element, created with document, describing this object; the default implementation throws a DataException.

• fromXmlElement

  public DecisionTable fromXmlElement(Element element)