content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.arrow.adapter.jdbc.binder;
  
  import java.sql.PreparedStatement;
  import java.sql.SQLException;
  import org.apache.arrow.vector.FieldVector;
  
  /** A helper to bind values from a wrapped Arrow vector to a JDBC PreparedStatement. */
  public interface ColumnBinder {
    /**
     * Bind the given row to the given parameter.
     *
     * @param statement The statement to bind to.
     * @param parameterIndex The parameter to bind to (1-indexed)
     * @param rowIndex The row to bind values from (0-indexed)
     * @throws SQLException if an error occurs
     */
    void bind(PreparedStatement statement, int parameterIndex, int rowIndex) throws SQLException;
  
    /**
     * Get the JDBC type code used by this binder.
     *
     * @return A type code from {@link java.sql.Types}.
     */
    int getJdbcType();
  
    /** Get the vector used by this binder. */
    FieldVector getVector();
  
    /** Create a column binder for a vector, using the default JDBC type code for null values. */
    static ColumnBinder forVector(FieldVector vector) {
      return forVector(vector, /*jdbcType*/ null);
    }
  
    /**
     * Create a column binder for a vector, overriding the JDBC type code used for null values.
     *
     * @param vector The vector that the column binder will wrap.
     * @param jdbcType The JDBC type code to use (or null to use the default).
     */
    static ColumnBinder forVector(FieldVector vector, Integer jdbcType) {
      final ColumnBinder binder =
          vector.getField().getType().accept(new ColumnBinderArrowTypeVisitor(vector, jdbcType));
      if (vector.getField().isNullable()) {
        return new NullableColumnBinder(binder);
      }
      return binder;
    }
  }
  