EvaluationContext (3 2.61.0 API)

java.lang.Object
- org.apache.beam.runners.spark.structuredstreaming.translation.EvaluationContext

```
@Internal
public final class EvaluationContext
extends java.lang.Object
```
The EvaluationContext is the result of a pipeline translation and can be used to evaluate / run the pipeline.
However, in some cases pipeline translation involves the early evaluation of some parts of the pipeline. For example, this is necessary to materialize side-inputs. The EvaluationContext won't re-evaluate such datasets.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <T extends @NonNull java.lang.Object> T[]`	`collect(java.lang.String name, org.apache.spark.sql.Dataset<T> ds)`	The purpose of this utility is to mark the evaluation of Spark actions, both during Pipeline translation, when evaluation is required, and when finally evaluating the pipeline.
`void`	`evaluate()`	Trigger evaluation of all leaf datasets.
`static <T> void`	`evaluate(java.lang.String name, org.apache.spark.sql.Dataset<T> ds)`	The purpose of this utility is to mark the evaluation of Spark actions, both during Pipeline translation, when evaluation is required, and when finally evaluating the pipeline.
`org.apache.spark.sql.SparkSession`	`getSparkSession()`

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

- Method Detail
  - evaluate
```
public void evaluate()
```
    Trigger evaluation of all leaf datasets.
  - evaluate
```
public static <T> void evaluate(java.lang.String name,
                                org.apache.spark.sql.Dataset<T> ds)
```
    The purpose of this utility is to mark the evaluation of Spark actions, both during Pipeline translation, when evaluation is required, and when finally evaluating the pipeline.
  - collect
```
public static <T extends @NonNull java.lang.Object> T[] collect(java.lang.String name,
                                                                org.apache.spark.sql.Dataset<T> ds)
```
    The purpose of this utility is to mark the evaluation of Spark actions, both during Pipeline translation, when evaluation is required, and when finally evaluating the pipeline.
  - getSparkSession
```
public org.apache.spark.sql.SparkSession getSparkSession()
```