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A JDBC-Compliant driver for the DuckDB data management system
There is a newer version: 1.1.3
package org.duckdb;

import java.sql.Array;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Map;

import static org.duckdb.DuckDBResultSetMetaData.type_to_int;

public class DuckDBArray implements Array {
    private final Object[] array;
    private final DuckDBVector vector;
    final int offset, length;

    DuckDBArray(DuckDBVector vector, int offset, int length) throws SQLException {
        this.vector = vector;
        this.length = length;
        this.offset = offset;

        array = new Object[length];
        for (int i = 0; i < length; i++) {
            array[i] = vector.getObject(offset + i);
        }
    }

    @Override
    public void free() throws SQLException {
        // we don't own the vector, so cannot free it
    }
    @Override
    public Object getArray() throws SQLException {
        return array;
    }

    @Override
    public Object getArray(Map> map) throws SQLException {
        return getArray();
    }

    @Override
    public Object getArray(long index, int count) throws SQLException {
        // TODO Auto-generated method stub
        throw new UnsupportedOperationException("Unimplemented method 'getArray'");
    }

    @Override
    public Object getArray(long index, int count, Map> map) throws SQLException {
        // TODO Auto-generated method stub
        throw new UnsupportedOperationException("Unimplemented method 'getArray'");
    }

    @Override
    public int getBaseType() throws SQLException {
        return type_to_int(vector.duckdb_type);
    }

    @Override
    public String getBaseTypeName() throws SQLException {
        return vector.duckdb_type.name();
    }

    @Override
    public ResultSet getResultSet() throws SQLException {
        return new DuckDBArrayResultSet(vector, offset, length);
    }

    @Override
    public ResultSet getResultSet(Map> map) throws SQLException {
        // TODO Auto-generated method stub
        throw new UnsupportedOperationException("Unimplemented method 'getResultSet'");
    }

    @Override
    public ResultSet getResultSet(long index, int count) throws SQLException {
        // TODO Auto-generated method stub
        throw new UnsupportedOperationException("Unimplemented method 'getResultSet'");
    }

    @Override
    public ResultSet getResultSet(long index, int count, Map> map) throws SQLException {
        // TODO Auto-generated method stub
        throw new UnsupportedOperationException("Unimplemented method 'getResultSet'");
    }

    @Override
    public String toString() {
        return Arrays.toString(array);
    }
}