Package com.axelor.meta.headless

Class ActionChain

java.lang.Object

com.axelor.meta.headless.ActionChain

public final class ActionChain
extends Object

An action chain as its actions' definitions write it out — read, never run: groups flattened with their conditions, validations and conditions with their checks, records and attributes with their fields, Java steps and navigation by name.

 ActionChain chain = ActionChain.of(button.onClick());
 chain.points();   // the questions and stops a run of it can meet
 

From it come the interactive points a chain can reach, which a caller answering a session's questions is written against: every alert, error and message an action-validate can raise, every pseudo-action, every Java step (which may alert; its code is not read). And from the attributes its action-attrs set, FormSpec.limits() finds those a browser would enforce.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	ActionChain.Assign	An action-record or action-attrs: what it sets.
static final record	ActionChain.Check	A check of a validation or condition.
static final record	ActionChain.Condition	An action-condition: checks that set field errors, which stop the chain.
static final record	ActionChain.Field	A field an action-record sets, or an attribute an action-attrs sets.
static final record	ActionChain.Group	An action-group, its items in order.
static final record	ActionChain.Method	A Java step: class:method, directly or through an action-method.
static final record	ActionChain.Missing	A name no action answers to: it does nothing, and a run skips it.
static final record	ActionChain.Navigate	An action-view: navigation, returned to the caller rather than followed.
static final record	ActionChain.Other	Another kind of action: a script, a report, an export, a web service...
static final record	ActionChain.Point	A place in a chain where a run meets something only a person or the browser handles.
static final record	ActionChain.Pseudo	save, validate, close or new, handled by the client.
static final record	ActionChain.Repeat	An action already written out above it, not repeated: a cycle, or too deep.
static interface	ActionChain.Step	One element of a chain, written out.
static final record	ActionChain.Validate	An action-validate: its alerts, errors and messages in order.

Method Summary

Modifier and Type	Method	Description
Set<String>	actions()	The names of every action the chain reaches, groups included.
boolean	isEmpty()
static ActionChain	of(String chain)	A chain, comma separated, written out; a blank or null chain has no steps.
List<ActionChain.Point>	points()	Every interactive point the chain can reach, in order, each once.
List<ActionChain.Step>	steps()	Its elements, in order, groups holding theirs.
String	text()	The chain as written.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

of

public static ActionChain of(String chain)

A chain, comma separated, written out; a blank or null chain has no steps.

text

public String text()

The chain as written.

steps

public List<ActionChain.Step> steps()

Its elements, in order, groups holding theirs.

isEmpty

public boolean isEmpty()

toString

public String toString()

Overrides:

toString in class Object

points

public List<ActionChain.Point> points()

Every interactive point the chain can reach, in order, each once.

actions

public Set<String> actions()

The names of every action the chain reaches, groups included.