IBM Streams 4.2.1

Code templates

Code templates are reusable code snippets that you can insert into your SPL source by using the content assist feature.

A code template is defined by the following attributes:

Name: The name of the code template.
Context: The location in source code where the code template is applicable. The context controls when the code template becomes available in content assist.
Description: An optional description that provides more information about the code template.
Pattern: The code snippet to be inserted into the source code when the code template is selected from content assist. A pattern can contain variables to represent a part of the snippet that requires user input. To insert a variable, type ${variable_name} in the pattern.

You can define code templates for the following context:

Table 1. Code template context and location
Context	Location in source code
Composite Definition	Where a new composite definition is valid
Composite Parameter	Inside the parameter code of a composite definition
Config	Inside a `config` clause
Local Literal	In an expression
Namespace	Where you can specify a namespace in the SPL source
Operator Invocation	Where you can invoke an operator inside a `graph` clause
Operator Invocation Logic	Inside the `logic` clause of an operator invocation
Operator Invocation Output	Inside the `output` clause of an operator invocation
Operator Invocation Parameter	Inside the `parameter` clause of an operator invocation
Operator Invocation Window	Inside the `window` clause of an operator invocation
Use Directive	Where you can specify a `use` directive in the SPL source

By default, Streams Studio includes the following code templates.