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## org.eclipse.birt.data.engine.api
Interface IBaseTransform

All Known Subinterfaces:
  IBaseQueryDefinition, IGroupDefinition, IQueryDefinition, ISubqueryDefinition

All Known Implementing Classes:
  BaseQueryDefinition, BaseTransform, GroupDefinition, QueryDefinition, SubqueryDefinition, SubqueryLocator

    public interface IBaseTransform

Base class to define set of transforms that are common to queries, and groups within queries.

Method Summary
`java.util.List` | `getFilters()` Returns the filters defined in this transform, as an ordered list of `IFilterDefinition` objects.
`java.util.List` | `getSorts()` Returns the sort criteria as an ordered list of `ISortDefinition` objects.
`java.util.Collection` | `getSubqueries()` Returns an unordered collection of subqueries that are alternative views of the result set for this transform.

Method Detail

### getFilters

    java.util.List getFilters()

  Returns the filters defined in this transform, as an ordered list of `IFilterDefinition` objects.

  Returns:
    the filters. null if no filter is defined.

### getSubqueries

    java.util.Collection getSubqueries()

  Returns an unordered collection of subqueries that are alternative views of the result set for this transform. Objects are of type `ISubqueryDefinition`.

  Returns:
    the subqueries for this transform
  See Also:
    `ISubqueryDefinition`

### getSorts

    java.util.List getSorts()

  Returns the sort criteria as an ordered list of `ISortDefinition` objects.

  Returns:
    the sort criteria

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