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

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package org.sfm.querydsl;

import com.mysema.query.Tuple;
import com.mysema.query.types.Expression;
import com.mysema.query.types.Path;
import org.sfm.map.Mapper;
import org.sfm.map.MapperBuildingException;
import org.sfm.map.MapperConfig;
import org.sfm.map.mapper.FieldMapperMapperBuilder;
import org.sfm.map.mapper.KeyFactory;
import org.sfm.map.mapper.MapperSource;
import org.sfm.map.column.FieldMapperColumnDefinition;
import org.sfm.map.context.MappingContextFactoryBuilder;
import org.sfm.map.mapper.MapperSourceImpl;
import org.sfm.reflect.ReflectionService;
import org.sfm.reflect.meta.ClassMeta;

import java.lang.reflect.Type;

public final class QueryDslMapperBuilder {
	public static final MapperSource FIELD_MAPPER_SOURCE =
			new MapperSourceImpl(Tuple.class, new TupleGetterFactory());
	private static final KeyFactory KEY_FACTORY = new KeyFactory() {
		@Override
		public TupleElementKey newKey(String name, int i) {
			return new TupleElementKey(name, i);
		}
	} ;

	private final FieldMapperMapperBuilder fieldMapperMapperBuilder;

	public QueryDslMapperBuilder(final Type target) throws MapperBuildingException {
		this(target, ReflectionService.newInstance());
	}
	
	@SuppressWarnings("unchecked")
	public QueryDslMapperBuilder(final Type target, ReflectionService reflectService) throws MapperBuildingException {
		this(reflectService.getClassMeta(target), new QueryDslMappingContextFactoryBuilder());
	}
	
	public QueryDslMapperBuilder(final ClassMeta classMeta, MappingContextFactoryBuilder parentBuilder) throws MapperBuildingException {
		fieldMapperMapperBuilder =
				new FieldMapperMapperBuilder(
						FIELD_MAPPER_SOURCE,
						classMeta,
						MapperConfig.fieldMapperConfig(),
						parentBuilder, KEY_FACTORY);
	}

    public  QueryDslMapperBuilder addMapping(Expression expression, int i) {
		fieldMapperMapperBuilder.addMapping(new TupleElementKey(expression, i), FieldMapperColumnDefinition.identity());
		return this;
	}

	public Mapper mapper() {
		return fieldMapperMapperBuilder.mapper();
	}
}




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