As Gradle executes, it acts on various pieces of the build definition, such as each project in the build.
Gradle tracks the state of each piece and transitions each piece through its lifecycle as the build runs.

A central part of the Gradle architecture is the "build state model", which holds the state for each piece and coordinates state transitions and other mutations. 
Most source code in Gradle is arranged by which part(s) of the build state model it acts on.

	}

	// Split on dot and check each piece conforms to rules.
	allNumbers := true
	pieces := strings.Split(bucket, dnsDelimiter)
	for _, piece := range pieces {
		if len(piece) == 0 || piece[0] == '-' ||
			piece[len(piece)-1] == '-' {
			// Current piece has 0-length or starts or
			// ends with a hyphen.
			return false
		}
		// Now only need to check if each piece is a valid

What if you want to play a cheerful sound when the build succeeds and a sad one when it fails?
This work piece has to process the task execution result, so it cannot be a task itself.

The Dataflow Actions API provides a way to schedule this type of work.
A dataflow action is a parameterized isolated piece of work that becomes eligible for execution as soon as all input parameters become available.

== Implementing a dataflow action

Gradle *automates building, testing, and deployment of software* from information in *build scripts*.

image::gradle-basic-1.png[]

== Gradle core concepts

=== Projects

A Gradle *project* is a piece of software that can be built, such as an application or a library.

*Single project* builds include a single project called the *root project*.

*Multi-project* builds include *one root project* and *any number of subprojects*.

		}).OnError()
	},
}

type ErrorHandler func(ctx context.Context, err error, msg string, keysAndValues ...interface{})

// HandlerError is a method to invoke when a non-user facing piece of code cannot
// return an error and needs to indicate it has been ignored. Invoking this method
// is preferable to logging the error - the default behavior is to log but the
// errors may be sent to a remote server for analysis.

   * "e"]}. The last piece can be smaller than {@code length} but will never be empty.
   *
   * <p><b>Note:</b> if {@link #fixedLength} is used in conjunction with {@link #limit}, the final
   * split piece <i>may be longer than the specified fixed length</i>. This is because the splitter
   * will <i>stop splitting when the limit is reached</i>, and just return the final piece as-is.
   *

Apache Maven is a software project management and comprehension tool. Based on
the concept of a project object model (POM), Maven can manage a project's
build, reporting and documentation from a central piece of information.

If you think you have found a bug, please file an issue in the [Maven Issue Tracker][jira].

Documentation
-------------

More information can be found on [Apache Maven Homepage][maven-home].

 *       Once configuration is available, it will be used, as per the above.
 *     </li>
 * </ul>
 *
 * <p>Currently, there is no simple, general way to know where in the above lifecycle a given piece of work will run.</p>
 */
@ServiceScope(Scope.BuildTree.class)
public class LifecycleAwareBuildCacheControllerFactory {
    private final RootBuildCacheController rootController = new RootBuildCacheController();

```Python hl_lines="36-42"
{!../../../docs_src/nosql_databases/tutorial001.py!}
```

### f-strings

   * "e"]}. The last piece can be smaller than {@code length} but will never be empty.
   *
   * <p><b>Note:</b> if {@link #fixedLength} is used in conjunction with {@link #limit}, the final
   * split piece <i>may be longer than the specified fixed length</i>. This is because the splitter
   * will <i>stop splitting when the limit is reached</i>, and just return the final piece as-is.
   *