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This is the master POM file for Sun's Implementation of the JSF 2.1 Specification.

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package javax.faces.flow.builder;

import javax.el.MethodExpression;
import javax.el.ValueExpression;
import javax.faces.flow.Flow;

/**
 * 

A Java language API for building {@link Flow}s. * This API is semantically identical to the * <flow-definition> element in the * Application * Configuration Resources XML Schema Definition.

* *
* *

Usage example:

public class FlowA implements Serializable {
    
    @Produces {@link FlowDefinition}
    public {@link Flow} buildMyFlow(@{@link FlowBuilderParameter} {@link FlowBuilder} flowBuilder) {
        String flowId = "flow-a";
        flowBuilder.id("unique", flowId);
        flowBuilder.returnNode("taskFlowReturn1").
                fromOutcome("#{flow_a_Bean.returnValue}");
        flowBuilder.inboundParameter("param1FromFlowB", "#{flowScope.param1Value}");
        flowBuilder.inboundParameter("param2FromFlowB", "#{flowScope.param2Value}");
        flowBuilder.flowCallNode("callB").flowReference("", "flow-b").
                outboundParameter("param1FromFlowA", "param1Value").
                outboundParameter("param2FromFlowA", "param2Value");
        
        return flowBuilder.getFlow();
    }
}
* *

The runtime must discover all such methods at startup time and ensure that * the returned flows are added to the {@link javax.faces.flow.FlowHandler} using * the {@link javax.faces.flow.FlowHandler#addFlow(javax.faces.context.FacesContext, javax.faces.flow.Flow)} method.

* *
* * @since 2.2 */ public abstract class FlowBuilder { /** *

Set the defining document id and flow id * of this flow.

* * @param definingDocumentId The defining document id of this flow, or the * empty string if this flow does not need a defining document id. * @param id the id of the flow * @throws NullPointerException if any of the parameters are {@code null} * @since 2.2 */ public abstract FlowBuilder id(String definingDocumentId, String id); /** *

Define a view node in a flow graph.

* * @param viewNodeId Within the flow graph, the id of this view node * @param vdlDocumentId The fully qualified path to the view node within this flow. * @throws NullPointerException if any of the parameters are {@code null} * @since 2.2 */ /** *

Define a view node in a flow graph.

* * @param viewNodeId Within the flow graph, the id of this view node. Must * be unique among all nodes in this flow graph. * @param vdlDocumentId The fully qualified path to the view node within this flow. * @throws NullPointerException if any of the parameters are {@code null} * @since 2.2 */ public abstract ViewBuilder viewNode(String viewNodeId, String vdlDocumentId); /** *

Define a particular combination of * conditions that must match for this case to be executed, * and the view id of the component tree that should be selected next.

* * @since 2.2 */ public abstract NavigationCaseBuilder navigationCase(); /** *

Define a particular list of cases that * will be inspected in the order they are defined to determine where to * go next in the flow graph. If none of the cases match, the outcome * from the default case is chosen.

* * @param switchNodeId Within the flow graph, the id of this switch node. Must * be unique among all nodes in this flow graph. * * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 * */ public abstract SwitchBuilder switchNode(String switchNodeId); /** *

Define a return node. This node will cause * the specified outcome to be returned to the calling flow.

* * @param returnNodeId Within the flow graph, the id of this return node. Must * be unique among all nodes in this flow graph. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract ReturnBuilder returnNode(String returnNodeId); /** *

Define a method call node. This node will * cause the specified method to be invoked, passing parameters if necessary. * The return from the method is used as the outcome for where to go next in the * flow. If the method is a void method, the default outcome is used.

* * @param methodCallNodeId Within the flow graph, the id of this method call node. Must * be unique among all nodes in this flow graph. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract MethodCallBuilder methodCallNode(String methodCallNodeId); /** *

Define a flow call node. This node will * cause the specified flow to be called, passing parameters if necessary.

* * @param flowCallNodeId Within the flow graph, the id of this return node. Must * be unique among all nodes in this flow graph. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowCallBuilder flowCallNode(String flowCallNodeId); /** *

A MethodExpression that will be invoked when the flow is entered.

* * @param methodExpression the expression to invoke, must reference a zero-argument method. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder initializer(MethodExpression methodExpression); /** *

A MethodExpression that will be invoked when the flow is entered.

* * @param methodExpression the expression to invoke, must reference a zero-argument method. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder initializer(String methodExpression); /** *

A MethodExpression that will be invoked when the flow is exited.

* * @param methodExpression the expression to invoke, must reference a zero-argument method. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder finalizer(MethodExpression methodExpression); /** *

A MethodExpression that will be invoked when the flow is exited.

* * @param methodExpression the expression to invoke, must reference a zero-argument method. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder finalizer(String methodExpression); /** *

A parameter that will be populated with * the value from a correspondingly named outbound parameter from another * flow when this flow is entered from that flow.

* * @param name the parameter name * * @param expression the {@code ValueExpression} to populate with the inbound * value when the flow is called. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder inboundParameter(String name, ValueExpression expression); /** *

A parameter that will be populated with * the value from a correspondingly named outbound parameter from another * flow when this flow is entered from that flow.

* * @param name the parameter name * * @param expression the {@code ValueExpression} String to populate with the inbound * value when the flow is called. * @throws NullPointerException if any of the parameters are {@code null} * * @since 2.2 */ public abstract FlowBuilder inboundParameter(String name, String expression); /** *

Called as the last step in flow definition, * this method must perform any implementation specific initialization * and return the built {@link Flow}. If called more than one time during a * given flow building process, the second and subsequent invocations must * take no action and return the built flow.

* * @throws IllegalStateException if the {@link #id} method had not been * called prior to this method being called. * * @since 2.2 */ public abstract Flow getFlow(); }




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