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package javax.faces.flow;
import java.util.
List;
import java.util.
Map;
import java.util.
Set;
import javax.el.
MethodExpression;
import javax.faces.application.
NavigationCase;
import javax.faces.lifecycle.
ClientWindow;
/**
* <p class="changed_added_2_2"><strong>Flow</strong> is the runtime
* representation of a Faces Flow. Once placed into service by the
* runtime, an instance of this class is immutable. The implementation
* must be thread-safe because instances will be shared across all
* usages of the flow within the application.</p>
*
*
* @since 2.2
*/
public abstract class
Flow {
// <editor-fold defaultstate="collapsed" desc="Simple properties">
/**
* <p class="changed_added_2_2">Return the immutable id for this
* Flow. This must be unique within the defining document (such as
* an Application Configuration Resources file), but need not be
* unique within the entire application.</p>
* @since 2.2
*/
public abstract
String getId();
/**
* <p class="changed_added_2_2">Return the immutable application unique
* identifier for the document in which the argument flow is defined.</p>
* @since 2.2
*/
public abstract
String getDefiningDocumentId();
/**
* <p class="changed_added_2_2">Return the immutable id for the
* default node that should be activated when this flow is
* entered.</p>
*
* @since 2.2
*/
public abstract
String getStartNodeId();
/**
* <p class="changed_added_2_2">Return the {@code MethodExpression}
* that must be called by the runtime as the last thing that happens
* before exiting this flow. Any {@link FlowScoped} beans declared
* for this flow must remain in scope until after control returns
* from the method referenced by this {@code MethodExpression}.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
MethodExpression getFinalizer();
/**
* <p class="changed_added_2_2">Return the {@code MethodExpression}
* that must be called by the runtime immediately after activating
* any {@link FlowScoped} beans declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
MethodExpression getInitializer();
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Graph properties">
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing the inbound parameters that have been declared for
* this flow. See {@link FlowHandler#transition} for the
* specification of how these parameters are used. Inbound
* parameters are associated with a specific flow instance, while
* outbound parameters are associated with a {@link FlowCallNode}
* that causes the transition to a new flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
Map<
String,
Parameter>
getInboundParameters();
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing all of the view nodes declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
List<
ViewNode>
getViews();
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing all of the return nodes declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
Map<
String,
ReturnNode>
getReturns();
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing all of the switch nodes declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
Map<
String,
SwitchNode>
getSwitches();
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing all the flow call nodes declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
Map<
String,
FlowCallNode>
getFlowCalls();
/**
* <p class="changed_added_2_2">Return the {@link FlowCallNode} that
* represents calling the {@code targetFlow} from this flow, or
* {@code null} if {@code targetFlow} cannot be reached from this
* flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
FlowCallNode getFlowCall(
Flow targetFlow);
/**
* <p class="changed_added_2_2">Return an immutable data structure
* containing all the method call nodes declared for this flow.</p>
* <div class="changed_added_2_2">
* </div>
* @since 2.2
*/
public abstract
List<
MethodCallNode>
getMethodCalls();
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Graph navigation">
public abstract
FlowNode getNode(
String nodeId);
public abstract
Map<
String,
Set<
NavigationCase>>
getNavigationCases();
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="Outside interaction">
/**
* <p class="changed_added_2_2">Obtain the current {@link
* javax.faces.lifecycle.ClientWindow} from the {@link
* javax.faces.context.ExternalContext}. Get the window's id and
* append "_" and the return from {@link #getId}. Return the result.</p>
*
* @since 2.2
*/
public abstract
String getClientWindowFlowId(
ClientWindow curWindow);
// </editor-fold>
}