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## Velocity Template.
package ${functionPackage};
#foreach( $import in $imports)
import $import;
#end

/**
 * generated mapper function wrapper for a numeric primitive.
 *  
 *
 * output class : {@link Boolean}
 * 
input class  : {@link ${filterSubjectClass}}
 * 
map function : {@link ${targetClass}#${targetMethod}}
 *
 * 
 * @author Greg Higgins
 */
public class ${functionClass} extends AbstractFilterWrapper{

    public ${sourceClass} filterSubject;
    private boolean filterSubjectUpdated;
#foreach($sourceInfo in $sourceMappingList)
    public ${sourceInfo.type} ${sourceInfo.id};
    private boolean ${sourceInfo.id}Updated;
#end
#if(!${newFunction})
    @NoEventReference
    public ${targetClass} f;
#end
    private ${outputClass} result;
#if(${stateful})
    @NoEventReference
    public Object resetNotifier;
    private boolean parentReset = false;
#end
    private boolean value;
    private boolean oldValue;

    @OnEvent
    public boolean onEvent(){
        oldValue = result;
#if(${newFunction})
        result = ${targetClass}.${targetMethod}(${input});
#else
        if(filterSubjectUpdated){
            result = f.${targetMethod}(${input});
        }
#foreach($functionInfo in $sourceFunctions)
        if(${functionInfo.sourceInfo.id}Updated){
            result =  f.${targetMethod}(${functionInfo.paramString});
        }
#end
#end
        value = result;
        return !notifyOnChangeOnly || (oldValue != value);
    }
#if(!${newFunction})

    @OnParentUpdate("filterSubject")
    public void updated_filterSubject(${sourceClass} updated){
        filterSubjectUpdated = true;
    }

#foreach($sourceInfo in $sourceMappingList)
    @OnParentUpdate("${sourceInfo.id}")
    public void updated_${sourceInfo.id}(${sourceInfo.type} updated){
        ${sourceInfo.id}Updated = true;
    }
#end
#end
#if(${stateful})

    @OnParentUpdate("resetNotifier")
    public void resetNotification(Object resetNotifier) {
        parentReset = true;
        if (isResetImmediate()) {
            result = false;
            f.reset();
            parentReset = false;
        }
    }

    @AfterEvent
    public void resetAfterEvent() {
        if (parentReset | alwaysReset) {
            result = false;
            f.reset();
        }
        parentReset = false;
    }
  
    @Override
    public FilterWrapper resetNotifier(Object resetNotifier) {
        this.resetNotifier = resetNotifier;
        return this;
    }
#end

    @Override
    public Boolean event() {
        return value;
    }

    @Override
    public Class eventClass() {
        return Boolean.class;
    }

    @Initialise
    public void init(){
        result = false;
        value = false;
        oldValue = false;
#foreach($sourceInfo in $sourceMappingList)
        ${sourceInfo.id}Updated = false;
#end
    }

}