MissingPersistenceResult.java

package org.om.core.impl.persistence.result;

import org.om.core.api.annotation.MissingStrategy;
import org.om.core.api.mapping.MappedField;
import org.om.core.api.mapping.field.PropertyMapping;
import org.om.core.api.persistence.result.PersistenceResult;

public class MissingPersistenceResult {

	public static PersistenceResult createMissing(MappedField mappedField) {
		final MissingStrategy strategy = mappedField.getMissingStrategy();
		final boolean hasDefaultOrNullReturn = strategy == MissingStrategy.DefaultValue || strategy == MissingStrategy.ReturnNull;

		if (hasDefaultOrNullReturn) {
			Object value = null;
			if (strategy == MissingStrategy.DefaultValue)
				value = ((PropertyMapping) mappedField.getMapping()).getDefaultValue();
			return new ImmutablePersistenceResult(value);
		}

		return new ExceptionThrowingPersistenceResult(mappedField.getMissingException());
	}

}