public void setDataValue()

in empire-db-jsf2/src/main/java/org/apache/empire/jsf2/utils/TagEncodingHelper.java [831:900]
53 lines of code
14 McCabe index (conditional complexity)

    public void setDataValue(Object value)
    {
        if (getRecord() != null)
        {   // value
            if (record instanceof Record)
            {   getColumn();
                /* special case
                if (value==null && getColumn().isRequired())
                {   // ((Record)record).isFieldRequired(column)==false
                    log.warn("Unable to set null for required field!");
                    return;
                }
                */
                if (mostRecentValue!=null && isDetectFieldChange())
                {   // DetectFieldChange by comparing current and most recent value
                    Object currentValue = ((Record) record).get(column);
                    if (!ObjectUtils.compareEqual(currentValue, mostRecentValue))
                    {   // Value has been changed by someone else!
                        log.info("Concurrent data change for column {}. Current Value is \"{}\". Ignoring new value \"{}\"", column.getName(), currentValue, value);
                        return;
                    }
                }
                // check whether to skip validation
                boolean reenableValidation = false;
                if (skipValidation && (record instanceof DBRecordBase))
                {   // Ignore read only values
                    if (this.isReadOnly())
                        return;
                    /* Why?
                    if (ObjectUtils.isEmpty(value) && ((Record) this.record).isFieldRequired(column))
                        return; // Cannot set required value to null
                    */    
                    // Disable Validation
                    reenableValidation = ((DBRecordBase)record).isValidateFieldValues();
                    if (reenableValidation)
                        ((DBRecordBase)record).setValidateFieldValues(false);
                    // Validation skipped for
                    if (log.isDebugEnabled())
                        log.debug("Input Validation skipped for {}.", column.getName());
                }
                // Now, set the value
                try {
                    ((Record) record).set(column, value);
                    mostRecentValue = value;
                } finally {
                    // re-enable validation
                    if (reenableValidation)
                        ((DBRecordBase)record).setValidateFieldValues(true);
                }
            }
            else if (record instanceof RecordData)
            { // a record
                throw new PropertyReadOnlyException("record");
            }
            else
            { // a normal bean
                String prop = getColumn().getBeanPropertyName();
                setBeanPropertyValue(record, prop, value);
            }
        }
        else
        {   // Set Value attribute
            ValueExpression ve = getValueExpression();
            if (ve == null)
                throw new PropertyReadOnlyException("value");
            // set value
            FacesContext ctx = FacesContext.getCurrentInstance();
            ve.setValue(ctx.getELContext(), value);
        }
    }