Re: StackOverflowError Errors

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Re: StackOverflowError Errors

Subject: Re: StackOverflowError Errors
From: Doug Andrews <email@hidden>
Date: Mon, 28 Feb 2005 14:57:02 -0500

Thanks. Here is my "Complaint" class: I've noticed that i DO call valueForKey and takeValueForKey, but not in the accessor methods. Is this OK?


import com.webobjects.foundation.*;
import com.webobjects.eocontrol.*;
import java.math.*;

public class Complaint extends EOGenericRecord {

    public Complaint() {
        super();
    }

    public BigDecimal chargeAmount() {
        return (BigDecimal)storedValueForKey("chargeAmount");
    }

    public void setChargeAmount(BigDecimal value) {
        takeStoredValueForKey(value, "chargeAmount");
    }

    public Number billed() {
        return (Number)storedValueForKey("billed");
    }

    public void setBilled(Number value) {
        takeStoredValueForKey(value, "billed");
    }

    public Number publicationID() {
        return (Number)storedValueForKey("publicationID");
    }

    public void setPublicationID(Number value) {
        takeStoredValueForKey(value, "publicationID");
    }

    public Number processed() {
        return (Number)storedValueForKey("processed");
    }

    public void setProcessed(Number value) {
        takeStoredValueForKey(value, "processed");
    }


    public Number postTopSheet() {
        return (Number)storedValueForKey("postTopSheet");
    }

    public void setPostTopSheet(Number value) {
        takeStoredValueForKey(value, "postTopSheet");
    }

public NSTimestamp postDate() { return CommonCode.stripTime((NSTimestamp)storedValueForKey("postDate")); }

    public void setPostDate(NSTimestamp value) {
        takeStoredValueForKey(CommonCode.stripTime(value), "postDate");
    }

    public String complaintText() {
        return (String)storedValueForKey("complaintText");
    }

    public void setComplaintText(String value) {
        takeStoredValueForKey(value, "complaintText");
    }

    public String resolutionText() {
        return (String)storedValueForKey("resolutionText");
    }

    public void setResolutionText(String value) {
        takeStoredValueForKey(value, "resolutionText");
    }

    public NSTimestamp dateTimeStamp() {
        return (NSTimestamp)storedValueForKey("dateTimeStamp");
    }

    public void setDateTimeStamp(NSTimestamp value) {
        takeStoredValueForKey(value, "dateTimeStamp");
    }


    public NSTimestamp entered() {
        return (NSTimestamp)storedValueForKey("entered");
    }

    public void setEntered(NSTimestamp value) {
        takeStoredValueForKey(CommonCode.stripTime(value), "entered");
    }

    public String author() {
        return (String)storedValueForKey("author");
    }

    public void setAuthor(String value) {
        takeStoredValueForKey(value, "author");
    }

    public Number subscriptionID() {
        return (Number)storedValueForKey("subscriptionID");
    }

    public void setSubscriptionID(Number value) {
        takeStoredValueForKey(value, "subscriptionID");
    }

    public Number distributorID() {
        return (Number)storedValueForKey("distributorID");
    }

    public void setDistributorID(Number value) {
        takeStoredValueForKey(value, "distributorID");
    }

    public Number complaintID() {
        return (Number)storedValueForKey("complaintID");
    }

    public void setComplaintID(Number value) {
        takeStoredValueForKey(value, "complaintID");
    }

    public Number status() {
        return (Number)storedValueForKey("status");
    }

    public void setStatus(Number value) {
        takeStoredValueForKey(value, "status");
    }

    public Number reasonid() {
        return (Number)storedValueForKey("reasonid");
    }

    public void setReasonid(Number value) {
        takeStoredValueForKey(value, "reasonid");
    }

    public Subscription subscription() {
        return (Subscription)storedValueForKey("subscription");
    }

    public void setSubscription(Subscription value) {
        takeStoredValueForKey(value, "subscription");
    }

    public Distribution distribution() {
        return (Distribution)storedValueForKey("distribution");
    }

    public void setDistribution(Distribution value) {
        takeStoredValueForKey(value, "distribution");
    }

    public EOGenericRecord reason() {
        return (EOGenericRecord)storedValueForKey("reason");
    }

    public void setReason(EOGenericRecord value) {
        takeStoredValueForKey(value, "reason");
    }

    public Number action() {
        return (Number)storedValueForKey("action");
    }

    public void setAction(Number value) {
        takeStoredValueForKey(value, "action");
    }

    public String actor() {
        if (storedValueForKey("actor") == null) {
            return author();
        }
        return (String)storedValueForKey("actor");
    }

    public void setActor(String value) {
        takeStoredValueForKey(value, "actor");
    }

    public NSTimestamp actionTime() {
        if (storedValueForKey("actionTime") == null) {
            return dateTimeStamp();
        }
        return (NSTimestamp)storedValueForKey("actionTime");
    }

    public void setActionTime(NSTimestamp value) {
        takeStoredValueForKey(value, "actionTime");
    }

    public String actionTo() {
        return (String)storedValueForKey("actionTo");
    }

    public void setActionTo(String value) {
        takeStoredValueForKey(value, "actionTo");
    }

// custom code

public String smallComplaintText() { if (reason() == null) { if (null == complaintText()) return null; if (complaintText().length() < 30) return complaintText(); return complaintText().substring(0,30); } if (reason().valueForKey("reasonName") == NSKeyValueCoding.NullValue || reason().valueForKey("reasonName") == null) return null; if (((String)reason().valueForKey("reasonName")).length() < 30) return ((String)reason().valueForKey("reasonName")); return ((String)reason().valueForKey("reasonName")).substring(0,30); }

    public String statusName()
    {
        if (null == status())
            return "Cleared";
        switch (status().intValue())
        {
            case 1: return "Resolved";
            case 2: return "Unresolved";
        }
        return "Cleared";
    }

    public String complaintTextString()
    {
        if (reason() == null) {
            if (null == complaintText()) {
                return null;
            }
            return complaintText();
        }
        if (this.valueForKeyPath("reason.reasonName") == null) {
            return null;
        }
        return ((String)this.valueForKeyPath("reason.reasonName"));
    }

    public String actionName()
    {
        if (null == action())
            return "Entered";
        switch (action().intValue())
        {
            case 1: return "Dispatched";
            case 2: return "Delivered";
        }
        return "Entered";
    }

    public String niceEneteredDate()
    {
        String retStr;
        NSTimestampFormatter formatter;
        if (entered()==null)
            return new String("");

        formatter = new NSTimestampFormatter("%m/%d/%y");
        retStr = new String();
        retStr = formatter.format(entered());
        return retStr;
    }
}

On Feb 28, 2005, at 2:16 PM, Alan Ward wrote:

more than likely you have a method that's doing a takeValueForKey instead of takeStoredValueForKey (or returning a valueForKey instead of storedValueForKey). If you post the code for the whole class then it would be easier to spot.

On Feb 28, 2005, at 11:14 AM, Doug Andrews wrote:

Hello list.

I am stuck on this problem, and cannot seem to figure this out.
Any help would be appreciated.

We have several sites that regularly get StackOverflowError errors. This only seems to happen when they access EO's that have a custom class. The EO's are always in a valid EditingContext at the time. Our custom classes extend EOGenericRecord and use the accessor methods generated by EOModeler.

example:

public String account() {
    return (String)storedValueForKey("account");
}

public void setAccount(String value) {
    takeStoredValueForKey(value, "account");
}

Nothing too fancy.

If the EO is not of a custom class, but is of class EOGenericRecord, we don't seem to have these problems. We are deploying on WO 5.1.3 on Mac 10.3.x

Has anyone else had this problem?

Here is a sample of the stack trace, which just repeats itself over and over.


EOEditingContext.java             4724 _sendOrEnqueueNotification
EOEditingContext.java             1963 _globalIDChanged
GeneratedMethodAccessor124.java   NA   invoke
DelegatingMethodAccessorImpl.java 25   invoke
Method.java                       324  invoke
NSSelector.java                   120  _safeInvokeMethod
NSNotificationCenter.java         598  invokeMethod
NSNotificationCenter.java         542  postNotification
NSNotificationCenter.java         572  postNotification
EOEditingContext.java             1959 _processGlobalIDChanges
GeneratedMethodAccessor125.java   NA   invoke
DelegatingMethodAccessorImpl.java 25   invoke
Method.java                       324  invoke
NSSelector.java                   354  invoke
NSSelector.java                   108  _safeInvokeSelector
EOEditingContext.java             4724 _sendOrEnqueueNotification
EOEditingContext.java             1963 _globalIDChanged
GeneratedMethodAccessor124.java   NA   invoke
DelegatingMethodAccessorImpl.java 25   invoke
Method.java                       324  invoke
NSSelector.java                   120  _safeInvokeMethod
NSNotificationCenter.java         598  invokeMethod
NSNotificationCenter.java         542  postNotification
NSNotificationCenter.java         572  postNotification
EOEditingContext.java             1959 _processGlobalIDChanges


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References:  
  >StackOverflowError Errors (From: Doug Andrews <email@hidden>)




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