code: private boolean isMethodAlreadyDefined(M2MEntity entity, final String methodName) {
  
  		final One<Boolean> found = new One<Boolean>(false);
  		SqlBuilderHelper.forEachMethods(entity.daoElement, new MethodFoundListener() {
  
  			@Override
  			public void onMethod(ExecutableElement executableMethod) {
  				if (executableMethod.getSimpleName().toString().equals(methodName)) {
  					found.value0 = true;
  				}
  
  			}
  		});
  
  		return found.value0;
  	}
docs: analyze DAO definition to check if method is already defined.
  
  @param entity
  the entity
  @param methodName
  the method name
  @return true, if is method already defined