/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jdbi.v3.core.array;

import java.lang.reflect.Type;
import java.sql.Types;
import java.util.Collection;
import java.util.Optional;

import org.jdbi.v3.core.argument.Argument;
import org.jdbi.v3.core.argument.ArgumentFactory;
import org.jdbi.v3.core.argument.NullArgument;
import org.jdbi.v3.core.config.ConfigRegistry;
import org.jdbi.v3.core.internal.IterableLike;

Bind a Java array or Collection to a SQL array using the SqlArrayTypeFactory for the given type information. Note that due to type erasure, binding Collection arguments with SqlStatement.bind(int, Object) may fail to determine the array component type. Provide explicit information with SqlStatement.bindByType(int, Object, GenericType). This factory is registered by default.
See Also:
/** * Bind a Java array or {@link Collection} to a SQL array using the * {@link SqlArrayTypeFactory} for the given type information. Note * that due to type erasure, binding {@code Collection} arguments with * {@link org.jdbi.v3.core.statement.SqlStatement#bind(int, Object)} may * fail to determine the array component type. Provide explicit information with * {@link org.jdbi.v3.core.statement.SqlStatement#bindByType(int, Object, org.jdbi.v3.core.generic.GenericType)}. * * This factory is registered by default. * @see SqlArrayType * @see SqlArrayTypes * @see org.jdbi.v3.core.config.Configurable#registerArrayType(SqlArrayType) */
public class SqlArrayArgumentFactory implements ArgumentFactory { @Override public Optional<Argument> build(Type type, Object value, ConfigRegistry config) { return IterableLike.elementTypeOf(type) .flatMap(config.get(SqlArrayTypes.class)::findFor) .map(arrayType -> arrayArgument(value, arrayType)); } private Argument arrayArgument(Object value, SqlArrayType<?> arrayType) { if (value == null) { return new NullArgument(Types.ARRAY); } else { return new SqlArrayArgument<>(arrayType, value); } } }