```
public class ThetaSketchAccumulator
extends Object
```
Intermediate state used by DistinctCountThetaSketchAggregationFunction which gives the end user more control over how sketches are merged for performance. The end user can set parameters that trade-off more memory usage for more pre-aggregation. This permits use of the Union "early-stop" optimisation where ordered sketches require no further processing beyond the minimum Theta value. The union operation initialises an empty "gadget" bookkeeping sketch that is updated with hashed entries that fall below the minimum Theta value for all input sketches ("Broder Rule"). When the initial Theta value is set to the minimum immediately, further gains can be realised.

Constructors
Constructor	Description
`ThetaSketchAccumulator()`
`ThetaSketchAccumulator(org.apache.datasketches.theta.SetOperationBuilder setOperationBuilder, int threshold)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`apply(org.apache.datasketches.theta.Sketch sketch)`
`org.apache.datasketches.theta.Sketch`	`getResult()`
`boolean`	`isEmpty()`
`void`	`merge(ThetaSketchAccumulator thetaUnion)`
`void`	`setSetOperationBuilder(org.apache.datasketches.theta.SetOperationBuilder setOperationBuilder)`
`void`	`setThreshold(int threshold)`

public ThetaSketchAccumulator(org.apache.datasketches.theta.SetOperationBuilder setOperationBuilder,
                              int threshold)

public void setSetOperationBuilder(org.apache.datasketches.theta.SetOperationBuilder setOperationBuilder)

public void setThreshold(int threshold)

@Nonnull
public org.apache.datasketches.theta.Sketch getResult()

public void apply(org.apache.datasketches.theta.Sketch sketch)

public void merge(ThetaSketchAccumulator thetaUnion)

Class ThetaSketchAccumulator