Package org.pentaho.di.trans.steps.formula

Class FormulaHelper

java.lang.Object

org.pentaho.di.trans.step.BaseStepHelper

org.pentaho.di.trans.steps.formula.FormulaHelper

All Implemented Interfaces:

StepHelperInterface

public class FormulaHelper
extends BaseStepHelper

Field Summary

Fields inherited from class org.pentaho.di.trans.step.BaseStepHelper

IS_TRANS_REFERENCE, IS_VALID_REFERENCE, log, REFERENCE_PATH, SEPARATOR

Fields inherited from interface org.pentaho.di.trans.step.StepHelperInterface

ACTION_STATUS, FAILURE_METHOD_NOT_FOUND_RESPONSE, FAILURE_RESPONSE, STATUS, SUCCESS_RESPONSE

Constructor Summary

Constructors

Constructor	Description
FormulaHelper()

Method Summary

Modifier and Type	Method	Description
org.json.simple.JSONObject	evaluateFormulaAction(TransMeta transMeta, Map<String,String> queryParams)	Evaluates a formula and returns validation messages.
org.json.simple.JSONObject	formulaTreeDataAction(Map<String,String> queryParams)	Retrieves the formula function tree data.
protected org.json.simple.JSONObject	handleStepAction(String method, TransMeta transMeta, Map<String,String> queryParams)	Handles step-specific actions for Formula.

Methods inherited from class org.pentaho.di.trans.step.BaseStepHelper

getReferencePath, isFailedResponse, stepAction, validateAndPutReferenceStatus

Methods inherited from class java.lang.Object

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

Constructor Details

FormulaHelper

public FormulaHelper()

Method Details

handleStepAction

protected org.json.simple.JSONObject handleStepAction(String method,
 TransMeta transMeta,
 Map<String,String> queryParams)

Handles step-specific actions for Formula.

Specified by:

handleStepAction in class BaseStepHelper

Parameters:

method - The name of the method to execute.

transMeta - The transformation metadata associated with the step.

queryParams - A map of query parameters for the action.

Returns:

A JSON object containing the action status and any additional response data.

evaluateFormulaAction

public org.json.simple.JSONObject evaluateFormulaAction(TransMeta transMeta,
 Map<String,String> queryParams)

Evaluates a formula and returns validation messages.

Parameters:

transMeta - The transformation metadata.

queryParams - A map of query parameters for the action.

Returns:

A JSON object containing evaluation messages.

formulaTreeDataAction

public org.json.simple.JSONObject formulaTreeDataAction(Map<String,String> queryParams)

Retrieves the formula function tree data.

Parameters:

queryParams - A map of query parameters for the action.

Returns:

A JSON object containing the function tree.