Procedure

All Known Implementing Classes:

ExpireSnapshotsProcedure, RemoveOrphanFilesProcedure
```
public interface Procedure
```
An interface representing a stored procedure available for execution.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`org.apache.spark.sql.catalyst.InternalRow[]`	`call(org.apache.spark.sql.catalyst.InternalRow args)`	Executes this procedure.
`default java.lang.String`	`description()`	Returns the description of this procedure.
`org.apache.spark.sql.types.StructType`	`outputType()`	Returns the type of rows produced by this procedure.
`ProcedureParameter[]`	`parameters()`	Returns the input parameters of this procedure.

- Method Detail
  - parameters
```
ProcedureParameter[] parameters()
```
    Returns the input parameters of this procedure.
  - outputType
```
org.apache.spark.sql.types.StructType outputType()
```
    Returns the type of rows produced by this procedure.
  - call
```
org.apache.spark.sql.catalyst.InternalRow[] call(org.apache.spark.sql.catalyst.InternalRow args)
```
    Executes this procedure.
    Spark will align the provided arguments according to the input parameters defined in parameters() either by position or by name before execution.
    Implementations may provide a summary of execution by returning one or many rows as a result. The schema of output rows must match the defined output type in outputType().
    
    Parameters:
    
    args - input arguments
    
    Returns:
    
    the result of executing this procedure with the given arguments
  - description
```
default java.lang.String description()
```
    Returns the description of this procedure.