PTransformMatchers (core 2.55.1 API)

java.lang.Object
- org.apache.beam.sdk.util.construction.PTransformMatchers

```
public class PTransformMatchers
extends java.lang.Object
```
A PTransformMatcher that matches PTransforms based on the class of the transform.
Once PTransforms have URNs, this will be removed and replaced with a UrnPTransformMatcher.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static PTransformMatcher`	`classEqualTo(java.lang.Class<? extends PTransform> clazz)` Returns a `PTransformMatcher` that matches a `PTransform` if the class of the `PTransform` is equal to the `Class` provided ot this matcher.
`static PTransformMatcher`	`createViewWithViewFn(java.lang.Class<? extends ViewFn> viewFnType)`
`static PTransformMatcher`	`emptyFlatten()` A `PTransformMatcher` which matches a `Flatten.PCollections` which consumes no input `PCollections`.
`static PTransformMatcher`	`flattenWithDuplicateInputs()` A `PTransformMatcher` which matches a `Flatten.PCollections` which consumes a single input `PCollection` multiple times.
`static PTransformMatcher`	`groupIntoBatches()` A `PTransformMatcher` which matches `GroupIntoBatches` transform.
`static PTransformMatcher`	`groupWithShardableStates()` A `PTransformMatcher` which matches `GroupIntoBatches` transform that allows shardable states.
`static PTransformMatcher`	`parDoWithFnType(java.lang.Class<? extends DoFn> fnType)` A `PTransformMatcher` which matches a `ParDo.SingleOutput` or `ParDo.MultiOutput` where the `DoFn` is of the provided type.
`static PTransformMatcher`	`requiresStableInputParDoMulti()` A `PTransformMatcher` that matches a `ParDo.MultiOutput` containing a `DoFn` that requires stable input, as signified by `DoFnSignature.ProcessElementMethod.requiresStableInput()`.
`static PTransformMatcher`	`requiresStableInputParDoSingle()` A `PTransformMatcher` that matches a `ParDo.SingleOutput` containing a `DoFn` that requires stable input, as signified by `DoFnSignature.ProcessElementMethod.requiresStableInput()`.
`static PTransformMatcher`	`splittableParDo()` A `PTransformMatcher` that matches a `ParDo` by URN if it has a splittable `DoFn`.
`static PTransformMatcher`	`splittableParDoMulti()` A `PTransformMatcher` that matches a `ParDo.MultiOutput` containing a `DoFn` that is splittable, as signified by `DoFnSignature.ProcessElementMethod.isSplittable()`.
`static PTransformMatcher`	`splittableParDoSingle()` A `PTransformMatcher` that matches a `ParDo.SingleOutput` containing a `DoFn` that is splittable, as signified by `DoFnSignature.ProcessElementMethod.isSplittable()`.
`static PTransformMatcher`	`splittableProcessKeyedBounded()` A `PTransformMatcher` that matches a `ParDo.SingleOutput` containing a `DoFn` that is splittable, as signified by `DoFnSignature.ProcessElementMethod.isSplittable()`.
`static PTransformMatcher`	`splittableProcessKeyedUnbounded()` A `PTransformMatcher` that matches a `ParDo.SingleOutput` containing a `DoFn` that is splittable, as signified by `DoFnSignature.ProcessElementMethod.isSplittable()`.
`static PTransformMatcher`	`stateOrTimerParDo()` A `PTransformMatcher` that matches a `ParDo` transform by URN and whether it contains state or timers as specified by `ParDoTranslation`.
`static PTransformMatcher`	`stateOrTimerParDoMulti()` A `PTransformMatcher` that matches a `ParDo.MultiOutput` containing a `DoFn` that uses state or timers, as specified by `DoFnSignature.usesState()` and `DoFnSignature.usesTimers()`.
`static PTransformMatcher`	`stateOrTimerParDoSingle()` A `PTransformMatcher` that matches a `ParDo.SingleOutput` containing a `DoFn` that uses state or timers, as specified by `DoFnSignature.usesState()` and `DoFnSignature.usesTimers()`.
`static PTransformMatcher`	`urnEqualTo(java.lang.String urn)` Returns a `PTransformMatcher` that matches a `PTransform` if the URN of the `PTransform` is equal to the URN provided ot this matcher.
`static PTransformMatcher`	`writeWithRunnerDeterminedSharding()`

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

- Method Detail
  - urnEqualTo
```
public static PTransformMatcher urnEqualTo(java.lang.String urn)
```
    Returns a PTransformMatcher that matches a PTransform if the URN of the PTransform is equal to the URN provided ot this matcher.
  - classEqualTo
```
public static PTransformMatcher classEqualTo(java.lang.Class<? extends PTransform> clazz)
```
    Returns a PTransformMatcher that matches a PTransform if the class of the PTransform is equal to the Class provided ot this matcher.
  - requiresStableInputParDoSingle
```
public static PTransformMatcher requiresStableInputParDoSingle()
```
    A PTransformMatcher that matches a ParDo.SingleOutput containing a DoFn that requires stable input, as signified by DoFnSignature.ProcessElementMethod.requiresStableInput().
  - requiresStableInputParDoMulti
```
public static PTransformMatcher requiresStableInputParDoMulti()
```
    A PTransformMatcher that matches a ParDo.MultiOutput containing a DoFn that requires stable input, as signified by DoFnSignature.ProcessElementMethod.requiresStableInput().
  - splittableParDoSingle
```
public static PTransformMatcher splittableParDoSingle()
```
    A PTransformMatcher that matches a ParDo.SingleOutput containing a DoFn that is splittable, as signified by DoFnSignature.ProcessElementMethod.isSplittable().
  - stateOrTimerParDoSingle
```
public static PTransformMatcher stateOrTimerParDoSingle()
```
    A PTransformMatcher that matches a ParDo.SingleOutput containing a DoFn that uses state or timers, as specified by DoFnSignature.usesState() and DoFnSignature.usesTimers().
  - splittableParDoMulti
```
public static PTransformMatcher splittableParDoMulti()
```
    A PTransformMatcher that matches a ParDo.MultiOutput containing a DoFn that is splittable, as signified by DoFnSignature.ProcessElementMethod.isSplittable().
  - splittableParDo
```
public static PTransformMatcher splittableParDo()
```
    A PTransformMatcher that matches a ParDo by URN if it has a splittable DoFn.
  - splittableProcessKeyedBounded
```
public static PTransformMatcher splittableProcessKeyedBounded()
```
    A PTransformMatcher that matches a ParDo.SingleOutput containing a DoFn that is splittable, as signified by DoFnSignature.ProcessElementMethod.isSplittable().
  - splittableProcessKeyedUnbounded
```
public static PTransformMatcher splittableProcessKeyedUnbounded()
```
    A PTransformMatcher that matches a ParDo.SingleOutput containing a DoFn that is splittable, as signified by DoFnSignature.ProcessElementMethod.isSplittable().
  - stateOrTimerParDo
```
public static PTransformMatcher stateOrTimerParDo()
```
    A PTransformMatcher that matches a ParDo transform by URN and whether it contains state or timers as specified by ParDoTranslation.
  - stateOrTimerParDoMulti
```
public static PTransformMatcher stateOrTimerParDoMulti()
```
    A PTransformMatcher that matches a ParDo.MultiOutput containing a DoFn that uses state or timers, as specified by DoFnSignature.usesState() and DoFnSignature.usesTimers().
  - parDoWithFnType
```
public static PTransformMatcher parDoWithFnType(java.lang.Class<? extends DoFn> fnType)
```
    A PTransformMatcher which matches a ParDo.SingleOutput or ParDo.MultiOutput where the DoFn is of the provided type.
  - createViewWithViewFn
```
public static PTransformMatcher createViewWithViewFn(java.lang.Class<? extends ViewFn> viewFnType)
```
  - emptyFlatten
```
public static PTransformMatcher emptyFlatten()
```
    A PTransformMatcher which matches a Flatten.PCollections which consumes no input PCollections.
  - flattenWithDuplicateInputs
```
public static PTransformMatcher flattenWithDuplicateInputs()
```
    A PTransformMatcher which matches a Flatten.PCollections which consumes a single input PCollection multiple times.
  - groupIntoBatches
```
public static PTransformMatcher groupIntoBatches()
```
    A PTransformMatcher which matches GroupIntoBatches transform.
  - groupWithShardableStates
```
public static PTransformMatcher groupWithShardableStates()
```
    A PTransformMatcher which matches GroupIntoBatches transform that allows shardable states.
  - writeWithRunnerDeterminedSharding
```
public static PTransformMatcher writeWithRunnerDeterminedSharding()
```

Class PTransformMatchers

Method Summary

Methods inherited from class java.lang.Object

Method Detail

urnEqualTo

classEqualTo

requiresStableInputParDoSingle

requiresStableInputParDoMulti

splittableParDoSingle

stateOrTimerParDoSingle

splittableParDoMulti

splittableParDo

splittableProcessKeyedBounded

splittableProcessKeyedUnbounded

stateOrTimerParDo

stateOrTimerParDoMulti

parDoWithFnType

createViewWithViewFn

emptyFlatten

flattenWithDuplicateInputs

groupIntoBatches

groupWithShardableStates

writeWithRunnerDeterminedSharding