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## Velocity Template.
package ${functionPackage};

#foreach( $import in $imports)
import $import;
#end
#set( $source = "source")
#set( $copy = "copy")

/**
 * generated multi key class for use with GroupBy functionality
 *
 * source class  : ${sourceClass}
 * 
 * @author Greg Higgins
 */
public final class ${functionClass} implements MultiKey<${functionClass}> {

#foreach( $keyInfo in $targetMappingList)
    private $keyInfo.initMethod($source);
#end

#foreach( $srcInfo in $sourceMappingList.entrySet() )
    public void setKey(${srcInfo.key} $source){
#foreach( $keyInfo in $srcInfo.value)
        $keyInfo.updateKeyMethod($source);
#end
    }
#end

    @Override
    public void reset(){
#foreach( $keyInfo in $targetMappingList)
        $keyInfo.resetMethod();
#end
    }

    @Override
    public ${functionClass} copyInto(${functionClass} $copy){
#foreach( $keyInfo in $targetMappingList)
        $keyInfo.copyMethod($copy);
#end
        return $copy;
    }

    @Override
    public ${functionClass} copyKey(){
        return copyInto(new ${functionClass}());
    }

    @Override
    public int hashCode() {
        int result = 1;
#foreach( $keyInfo in $targetMappingList)
        result = 31 * result + ($keyInfo.id == null ? 0 : ${keyInfo.id}.hashCode());
#end
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final ${functionClass} other = (${functionClass}) obj;
#foreach( $keyInfo in $targetMappingList)
        if(!((this.${keyInfo.id} == other.${keyInfo.id}) 
            || (this.${keyInfo.id} != null && this.${keyInfo.id}.equals(other.${keyInfo.id})))){
            return false;
        }
#end
        return true;
    }
}