OperatorSettings (Dataflow Library Distribution Project 7.0.2-37 API)

java.lang.Object
- com.pervasive.datarush.operators.OperatorSettings

```
public final class OperatorSettings
extends Object
```
Advanced operator settings that can be specified for an operator. Primarily used internally; operator/graph consumers should generally not need to use this.

Field Summary

Fields
Modifier and Type	Field and Description
`static OperatorSettings`	`DEFAULT` Default operator settings: unspecified name
`static OperatorSettings`	`PARALLELISM_DISABLED` Operator settings with `maxParallelism` set to 1

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`OperatorSettings`	`disableParallelism()` Can be called to forcible disable parallelism for the given operator (and children if this is a `CompositeOperator`).
`boolean`	`equals(Object o)` Equals is implemeted by comparing each of the properties of OperatorSettings.
`Integer`	`getMaxParallelism()` Returns the maximum parallelism to allow for the operator.
`Map<String,Object>`	`getMetadata()` Returns metadata associated with the operator.
`String`	`getName()` Returns the name of the operator
`GraphPath`	`getRelativePath()` Returns the relative path of the operator.
`int`	`hashCode()` Hashcode is implemented in a way that is consistent with equals.
`OperatorSettings`	`hiddenPath(boolean hidden)` Returns an operator settings object, equivalent to this, but with `hiddenPath` set to the specified value.
`boolean`	`isHiddenPath()` Returns whether the path to this operator is hidden.
`static OperatorSettings`	`MAX_PARALLELISM(int maxParallelism)` Operator settings with `maxParallelism` set to the specified value.
`OperatorSettings`	`maxParallelism(int maxParallelism)` Can be used to restrict the parallelism of an operator.
`OperatorSettings`	`metadata(String key, Object value)` Returns an operator settings object, equivalent to this, but with its metadata modified.
`static OperatorSettings`	`NAME(String name)` Operator settings with `name` set to the specified value.
`static OperatorSettings`	`RELATIVE_PATH(GraphPath path)` Operator settings with `relativePath` set to the specified value.
`OperatorSettings`	`rename(GraphPath path)` Returns an operator settings object, equivalent to this, but with `relativePath` and `name` set to the specified value.
`OperatorSettings`	`rename(String name)` Returns an operator settings object, equivalent to this, but with `relativePath` set to a path consisting of a single element equal to the specified name and `name` set to the specified value.
`String`	`toString()` Returns a display string

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

- Field Detail
  - DEFAULT
```
public static OperatorSettings DEFAULT
```
    Default operator settings: unspecified name
  - PARALLELISM_DISABLED
```
public static OperatorSettings PARALLELISM_DISABLED
```
    Operator settings with maxParallelism set to 1
- Method Detail
  - NAME
```
public static OperatorSettings NAME(String name)
```
    Operator settings with name set to the specified value.
    
    Parameters:
    
    name - the name of the operator
    
    Returns:
    
    an operator settings
  - MAX_PARALLELISM
```
public static OperatorSettings MAX_PARALLELISM(int maxParallelism)
```
    Operator settings with maxParallelism set to the specified value.
    
    Parameters:
    
    name - the name of the operator
    
    Returns:
    
    an operator settings
  - RELATIVE_PATH
```
public static OperatorSettings RELATIVE_PATH(GraphPath path)
```
    Operator settings with relativePath set to the specified value.
    
    Parameters:
    
    path - the relative path of the operator
    
    Returns:
    
    an operator settings
  - getName
```
public String getName()
```
    Returns the name of the operator
    
    Returns:
    
    the name of the operator
  - getRelativePath
```
public GraphPath getRelativePath()
```
    Returns the relative path of the operator. By default this the the same as name, but we have some internal artifacts for which we want control over naming.
    
    Returns:
    
    the relative of the operator
  - getMaxParallelism
```
public Integer getMaxParallelism()
```
    Returns the maximum parallelism to allow for the operator. The actual parallelism used will be the min of EngineConfig#getParallelism() and that specified here.
    
    Returns:
    
    the max parallelism or null if unspecified
  - isHiddenPath
```
public boolean isHiddenPath()
```
    Returns whether the path to this operator is hidden. Normally this is always false; used internally to hide generated artifacts from displayed error paths.
    
    Returns:
    
    whether the path to this operator is hidden
  - getMetadata
```
public Map<String,Object> getMetadata()
```
    Returns metadata associated with the operator. Metadata can consist of arbitrary key-value pairs. This is intended to hold application-specific information that is then available in the OperatorInstance.
    
    Returns:
    
    an immutable view of the metadata
  - hashCode
```
public int hashCode()
```
    Hashcode is implemented in a way that is consistent with equals.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    the hashcode
  - equals
```
public boolean equals(Object o)
```
    Equals is implemeted by comparing each of the properties of OperatorSettings.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    o - the other object
    
    Returns:
    
    true if this is equal to o
  - toString
```
public String toString()
```
    Returns a display string
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a display string
  - disableParallelism
```
public OperatorSettings disableParallelism()
```
    Can be called to forcible disable parallelism for the given operator (and children if this is a CompositeOperator). This method should be used sparingly since it will degrade performance significantly; but is needed in certain cases. For example:
    1. If there is a RunScript operator that contains a non-parallelizable script
    2. If there is a DeriveFields operator that contains a non-parallelizable function
    Returns:
    
    an operator settings object, equivalent to this, but with parallelism disabled
  - maxParallelism
```
public OperatorSettings maxParallelism(int maxParallelism)
```
    Can be used to restrict the parallelism of an operator. Note that this can be used to limit the parallelism of an operator but never increase that which the operator already allows.
    
    Parameters:
    
    maxParallelism - the max parallelism to allow
    
    Returns:
    
    an operator settings object, equivalent to this, but with maxParallelism set to that specified
  - rename
```
public OperatorSettings rename(GraphPath path)
```
    Returns an operator settings object, equivalent to this, but with relativePath and name set to the specified value.
    
    Parameters:
    
    path - the relative path
    
    Returns:
    
    an operator settings object
  - rename
```
public OperatorSettings rename(String name)
```
    Returns an operator settings object, equivalent to this, but with relativePath set to a path consisting of a single element equal to the specified name and name set to the specified value.
    
    Parameters:
    
    name - the name
    
    Returns:
    
    an operator settings object
  - hiddenPath
```
public OperatorSettings hiddenPath(boolean hidden)
```
    Returns an operator settings object, equivalent to this, but with hiddenPath set to the specified value.
    
    Parameters:
    
    hidden - whether this path is hidden
    
    Returns:
    
    an operator settings object
  - metadata
```
public OperatorSettings metadata(String key,
                                 Object value)
```
    Returns an operator settings object, equivalent to this, but with its metadata modified.
    
    Parameters:
    
    key - the metadata key to set
    
    value - the value to set it to
    
    Returns:
    
    an operator settings object

Class OperatorSettings

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT

PARALLELISM_DISABLED

Method Detail

NAME

MAX_PARALLELISM

RELATIVE_PATH

getName

getRelativePath

getMaxParallelism

isHiddenPath

getMetadata

hashCode

equals

toString

disableParallelism

maxParallelism

rename

rename

hiddenPath

metadata