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Implementing saveState method in JsfView.

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This commit is contained in:
Jeremy Grelle
2009-04-16 22:09:20 +00:00
parent 8f7e3ade44
commit 7173a96db6
3 changed files with 62 additions and 33 deletions
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35
spring-faces/src/main/java/org/springframework/faces/webflow/FlowSerializedView.java Normal file
View File

@@ -0,0 +1,35 @@
package org.springframework.faces.webflow;
import java.io.Serializable;
import org.springframework.core.style.ToStringCreator;
public class FlowSerializedView implements Serializable {
private Object treeStructure;
private Object componentState;
private String viewId;
public FlowSerializedView(String viewId, Object treeStructure, Object componentState) {
this.viewId = viewId;
this.treeStructure = treeStructure;
this.componentState = componentState;
}
public String getViewId() {
return this.viewId;
}
public Object getTreeStructure() {
return this.treeStructure;
}
public Object getComponentState() {
return this.componentState;
}
public String toString() {
return new ToStringCreator(this).append("viewId", viewId).toString();
}
}

42
spring-faces/src/main/java/org/springframework/faces/webflow/FlowViewStateManager.java
View File

@@ -16,7 +16,6 @@
package org.springframework.faces.webflow;
import java.io.IOException;
import java.io.Serializable;
import javax.faces.application.StateManager;
import javax.faces.component.UIViewRoot;
@@ -24,7 +23,6 @@ import javax.faces.context.FacesContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.style.ToStringCreator;
import org.springframework.webflow.execution.RequestContext;
import org.springframework.webflow.execution.RequestContextHolder;
@@ -75,8 +73,8 @@ public class FlowViewStateManager extends StateManager {
return;
}
RequestContext requestContext = RequestContextHolder.getRequestContext();
SerializedView view = (SerializedView) requestContext.getViewScope().get(SERIALIZED_VIEW_STATE);
viewRoot.processRestoreState(context, view.componentState);
FlowSerializedView view = (FlowSerializedView) requestContext.getViewScope().get(SERIALIZED_VIEW_STATE);
viewRoot.processRestoreState(context, view.getComponentState());
logger.debug("UIViewRoot component state restored");
}
@@ -85,19 +83,19 @@ public class FlowViewStateManager extends StateManager {
return super.restoreTreeStructure(context, viewId, renderKitId);
}
RequestContext requestContext = RequestContextHolder.getRequestContext();
SerializedView view = (SerializedView) requestContext.getViewScope().get(SERIALIZED_VIEW_STATE);
if (view == null || !view.viewId.equals(viewId)) {
FlowSerializedView view = (FlowSerializedView) requestContext.getViewScope().get(SERIALIZED_VIEW_STATE);
if (view == null || !view.getViewId().equals(viewId)) {
logger.debug("No matching view in view scope");
return null;
}
if (logger.isDebugEnabled()) {
logger.debug("Restoring view root with id '" + viewId + "' from view scope");
}
if (view.treeStructure == null) {
if (view.getTreeStructure() == null) {
logger.debug("Tree structure is null indicating transient UIViewRoot; returning null");
return null;
}
UIViewRoot viewRoot = new TreeStructureManager().restoreTreeStructure(view.treeStructure);
UIViewRoot viewRoot = new TreeStructureManager().restoreTreeStructure(view.getTreeStructure());
logger.debug("UIViewRoot structure restored");
return viewRoot;
}
@@ -127,8 +125,9 @@ public class FlowViewStateManager extends StateManager {
if (!JsfUtils.isFlowRequest()) {
return delegate.saveSerializedView(context);
}
SerializedView view = (SerializedView) saveView(context);
return new javax.faces.application.StateManager.SerializedView(view.treeStructure, view.componentState);
FlowSerializedView view = (FlowSerializedView) saveView(context);
return new javax.faces.application.StateManager.SerializedView(view.getTreeStructure(), view
.getComponentState());
}
/**
@@ -145,8 +144,8 @@ public class FlowViewStateManager extends StateManager {
if (logger.isDebugEnabled()) {
logger.debug("Saving view root '" + context.getViewRoot().getViewId() + "' in view scope");
}
SerializedView view = new SerializedView(context.getViewRoot().getViewId(), getTreeStructureToSave(context),
getComponentStateToSave(context));
FlowSerializedView view = new FlowSerializedView(context.getViewRoot().getViewId(),
getTreeStructureToSave(context), getComponentStateToSave(context));
requestContext.getViewScope().put(SERIALIZED_VIEW_STATE, view);
return view;
}
@@ -161,23 +160,4 @@ public class FlowViewStateManager extends StateManager {
}
return viewRoot;
}
private static class SerializedView implements Serializable {
private Object treeStructure;
private Object componentState;
private String viewId;
public SerializedView(String viewId, Object treeStructure, Object componentState) {
this.viewId = viewId;
this.treeStructure = treeStructure;
this.componentState = componentState;
}
public String toString() {
return new ToStringCreator(this).append("viewId", viewId).toString();
}
}
}

18
spring-faces/src/main/java/org/springframework/faces/webflow/JsfView.java
View File

@@ -72,7 +72,7 @@ public class JsfView implements View {
this.viewRoot = viewRoot;
}
/*
/**
* Performs the standard duties of the JSF RENDER_RESPONSE phase.
*/
public void render() throws IOException {
@@ -97,7 +97,7 @@ public class JsfView implements View {
return requestContext.getRequestParameters().size() > 1;
}
/*
/**
* Executes postback-processing portions of the standard JSF lifecycle including APPLY_REQUEST_VALUES through
* INVOKE_APPLICATION.
*/
@@ -114,6 +114,20 @@ public class JsfView implements View {
}
}
/**
* Updates the component state stored in View scope so that it remains in sync with the updated flow execution
* snapshot
*/
public void saveState() {
FacesContext facesContext = FlowFacesContext.newInstance(requestContext, facesLifecycle);
facesContext.setViewRoot(viewRoot);
try {
facesContext.getApplication().getStateManager().saveView(facesContext);
} finally {
facesContext.release();
}
}
public Object getUserEventState() {
// Set the temporary UIViewRoot state so that it will be available across the redirect
return new ViewRootHolder(getViewRoot());