org.sfm.querydsl.TupleFieldMapperFactory Maven / Gradle / Ivy

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package org.sfm.querydsl;

import java.lang.reflect.Type;

import org.sfm.map.FieldMapperErrorHandler;
import org.sfm.map.MapperBuilderErrorHandler;
import org.sfm.map.impl.FieldErrorHandlerMapper;
import org.sfm.map.impl.FieldMapper;
import org.sfm.map.impl.FieldMapperFactory;
import org.sfm.map.impl.GetterFactory;
import org.sfm.map.impl.fieldmapper.FieldMapperImpl;
import org.sfm.reflect.Getter;
import org.sfm.reflect.Setter;
import org.sfm.reflect.TypeHelper;

import com.mysema.query.Tuple;

public final class TupleFieldMapperFactory implements FieldMapperFactory {

	private final GetterFactory  getterFactory;

	public TupleFieldMapperFactory(GetterFactory getterFactory) {
		this.getterFactory = getterFactory;
	}

	@Override
	public  FieldMapper newFieldMapper(Type propertyType, Setter setter,
			TupleElementKey key, FieldMapperErrorHandler errorHandler, MapperBuilderErrorHandler mappingErrorHandler) {
		final Class type = TypeHelper.toClass(propertyType);
		
		Getter getter = getterFactory.newGetter(type, key);
		if (getter == null) {
			mappingErrorHandler.getterNotFound("Could not find getter for " + key + " type " + type);
		}
		
		FieldMapper fm =  new FieldMapperImpl(getter, setter);
		if (errorHandler != null) {
			fm = new FieldErrorHandlerMapper(key, fm, errorHandler);
		}
		return fm;
	}
}