FilterTransformation (Java Mapping API framework)

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com.informatica.powercenter.sdk.mapfwk.core
Class FilterTransformation

java.lang.Object
  com.informatica.powercenter.sdk.mapfwk.core.Table
      com.informatica.powercenter.sdk.mapfwk.core.Transformation
          com.informatica.powercenter.sdk.mapfwk.core.FilterTransformation

All Implemented Interfaces:: Transform

public class FilterTransformation
extends Transformation
extends Transformation

Class that provides the Filter Transformation functionality. This extends the base Transformation class.

The Filter transformation allows you to filter rows in a mapping. You pass all the rows from a source transformation through the Filter transformation, and then enter a filter condition for the transformation. All ports in a Filter transformation are input/output, and only rows that meet the condition pass through the Filter transformation.

The snippet code shows how to create the Filter Transformation,

                    //create a Filter Transformation using the constructor given below: 
          Mapping mapping = ...; // mapping to which the transform should be added
          Vector vInputSets = ...; // collection of InputSet objects
          String filterExpr = ...; //Filter expression
          Vector vTransformFields = ...; // collection of TransformField objects
          TransformationProperties props = ...; // properties           
          FilterTransformation filterTrans = new FilterTransformation( "FilterTrans", "FilterTrans", 
                                                  "This is filter transformation", "FilterTrans", 
                                                  mapping, vInputSets, vTransformFields, props );
          
          //apply the transformation
          OutputSet outputSet = filterTrans.apply();
          
          //get the first rowset as Filter always returns a RowSet
          RowSet outRowSet = (RowSet)outputSet.getRowSets().get(0);

Field Summary

Fields inherited from class com.informatica.powercenter.sdk.mapfwk.core.Transformation
`m_templateID, m_templateName, m_transformFieldAttr, sessionTransformInst`

Fields inherited from class com.informatica.powercenter.sdk.mapfwk.core.Table
`m_bReusable, m_readOnly`

Constructor Summary
`FilterTransformation()` Default constructor
`FilterTransformation(java.lang.String name, java.lang.String busName, java.lang.String desc, java.lang.String instName)` Initialize the object with name, business name, description and instance name
`FilterTransformation(java.lang.String name, java.lang.String busName, java.lang.String desc, java.lang.String instName, Mapping mapping, java.util.Vector vInputSets, java.lang.String filterExpr, TransformationProperties props)`

Method Summary
`OutputSet`	`apply()` Apply the Transformation.

Methods inherited from class com.informatica.powercenter.sdk.mapfwk.core.Transformation
add, addInitProp, defaultDuplicateNameRemovalSchema, genOutputSet, getGroupSet, getInitProps, getMapping, getOutFields, getOutputSet, getProperties, getSessionTransformInstanceKeySet, getSessionTransformInstanceProperty, getTemplateID, getTemplateName, getTransContext, getTransformationFieldAttr, getTransformationType, getTransformGroup, setGroupSet, setGroupSet, setMapping, setOutFields, setOutputSet, setReusable, setSessionTransformInstanceProperty, setTemplateIDAndName, setTransContext, setTransformationFieldAttr, setTransformationType, setTransformGroup, standardizeString

Methods inherited from class com.informatica.powercenter.sdk.mapfwk.core.Transformation

add, addInitProp, defaultDuplicateNameRemovalSchema, genOutputSet, getGroupSet, getInitProps, getMapping, getOutFields, getOutputSet, getProperties, getSessionTransformInstanceKeySet, getSessionTransformInstanceProperty, getTemplateID, getTemplateName, getTransContext, getTransformationFieldAttr, getTransformationType, getTransformGroup, setGroupSet, setGroupSet, setMapping, setOutFields, setOutputSet, setReusable, setSessionTransformInstanceProperty, setTemplateIDAndName, setTransContext, setTransformationFieldAttr, setTransformationType, setTransformGroup, standardizeString

Methods inherited from class com.informatica.powercenter.sdk.mapfwk.core.Table
`addField, addMetaExtension, getBusinessName, getDescription, getField, getFields, getInstanceName, getMetaExtensions, getName, getReferencedField, isReadOnly, isReusable, removeField, removeMetaExtension, setBusinessName, setDescription, setFields, setInstanceName, setMetaExtensions, setMetaExtensionValue, setName, setReadOnly`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail