OperationMetadata

```
public interface OperationMetadata
```
Contains metadata about function operation.

See Also:

Function, PropertyMetadata

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String DESCRIPTION
Metadata key, which value represents the operation description.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Map<java.lang.String,?>`	`getMetadata()`	Returns metadata about the function operation.
`PropertyMetadata[]`	`getParametersMetadata()`	Returns metadata about the operation parameters or `null` if no such metadata is available.
`PropertyMetadata`	`getReturnValueMetadata()`	Returns metadata about the operation return value or `null` if no such metadata is available.

- Field Detail
  - DESCRIPTION
```
static final java.lang.String DESCRIPTION
```
    Metadata key, which value represents the operation description. The property value type is java.lang.String.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getMetadata
```
java.util.Map<java.lang.String,?> getMetadata()
```
    Returns metadata about the function operation. The keys of the java.util.Map result must be of java.lang.String type. Possible keys:
    
    DESCRIPTION
    
    custom key
    Returns:
    
    The operation metadata or null if no such metadata is available.
  - getReturnValueMetadata
```
PropertyMetadata getReturnValueMetadata()
```
    Returns metadata about the operation return value or null if no such metadata is available.
    
    Returns:
    
    Operation return value metadata.
  - getParametersMetadata
```
PropertyMetadata[] getParametersMetadata()
```
    Returns metadata about the operation parameters or null if no such metadata is available.
    
    Returns:
    
    Operation parameters metadata.