fferpcore.FilteringDataSourceDecorator

global with sharing class FilteringDataSourceDecorator extends DataSource

Filters a fferpcore.DataSource using a PublicationMatcher.

This class extends fferpcore.DataSource

Methods

global FilteringDataSourceDecorator(fferpcore.DataSource subject, fferpcore.PublicationMatcher matcher)
global override void requireField(SObjectField field)
global override void requireField(String fieldName)
global override void require(fferpcore.Path path)
global override fferpcore.DataSource requireLookupField(SObjectField field)
global override fferpcore.DataSource requireLookupField(String name)
global override fferpcore.DataSource requireOneToManyField(fferpcore.DataSource.BackReference backReference)
global override Iterator<Row> runQuery()

FilteringDataSourceDecorator

global FilteringDataSourceDecorator(fferpcore.DataSource subject, fferpcore.PublicationMatcher matcher)

Constructor to create a filtering DataSource.

Input Parameters

Name	Type	Description
subject	fferpcore.DataSource	The fferpcore.DataSource on which to perform operations.
matcher	fferpcore.PublicationMatcher	Used to filter messages, Only matching messages are sent.

requireField

global override void requireField(SObjectField field)

Implements requireField(SObjectField field) on DataSource. Calls requireField(SObjectField field) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
field	SObjectField	A field to be included in the query.

requireField

global override void requireField(String fieldName)

Implements requireField(String fieldName) on DataSource. Calls requireField(String fieldName) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
fieldName	String	A field to be included in the query.

require

global override void require(fferpcore.Path path)

Implements require(Path path) on DataSource. Calls require(Path path) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
path	fferpcore.Path	A path to be included in the query.

requireLookupField

global override fferpcore.DataSource requireLookupField(SObjectField field)

Implements requireLookupField(SObjectField field) on DataSource. Calls requireLookupField(SObjectField field) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
field	SObjectField	The field representing the lookup.

Return Value

A DataSource representing the target of the lookup.

requireLookupField

global override fferpcore.DataSource requireLookupField(String name)

Implements requireLookupField(String name) on DataSource. Calls requireLookupField(String name) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
name	String	The field representing the lookup.

Return Value

A DataSource representing the target of the lookup.

requireOneToManyField

global override fferpcore.DataSource requireOneToManyField(fferpcore.DataSource.BackReference backReference)

Implements requireOneToManyField(DataSource.BackReference backReference) on DataSource. Calls requireOneToManyField(DataSource.BackReference backReference) on the fferpcore.DataSource provided in the constructor.

Input Parameters

Name	Type	Description
backReference	fferpcore.DataSource.BackReference	A description of the relationship as viewed from the defining "Many" Detail end.

Return Value

A DataSource representing the target of the lookup.

runQuery

global override Iterator<Row> runQuery()

Implements runQuery() on DataSource. Calls runQuery() on the fferpcore.DataSource provided in the constructor. The results of this query are filtered based on the fferpcore.PublicationMatcher provided to the description and only results matching the query will be returned.

Return Value

An iterator of fferpcore.DataSource.Row objects containing the required data.

Sample Code

//Note: This sample code is for demonstration purposes only. It is not intended for
//use in a production environment, is not guaranteed against defects or errors, and
//is in no way optimized or streamlined.
 
public class ExampleDataSource extends fferpcore.DataSource
{
    private Set<SObjectField> m_fields;
 
    public ExampleDataSource()
    {
    }
 
    public override void requireField(SObjectField field)
    {
        m_fields.add(field);
    }
 
    public override Iterator<fferpcore.DataSource.Row> runQuery()
    {
        // Run SOQL to retrieve the data in m_fields
    }
 
}
 
ExampleDataSource source = new ExampleDataSource();
source.requireField(Account.Name);
source.requireField(Account.AccountNumber);
Iterator<fferpcore.DataSource.Row> rows = source.runQuery();
//use rows to construct a message