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/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.tools;
import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.URL;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
import java.sql.NClob;
import java.sql.Ref;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.RowId;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Statement;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Map;
import java.util.UUID;
import org.h2.api.ErrorCode;
import org.h2.message.DbException;
import org.h2.util.Bits;
import org.h2.util.JdbcUtils;
import org.h2.util.MathUtils;
import org.h2.util.SimpleColumnInfo;
import org.h2.util.Utils;
import org.h2.value.DataType;
import org.h2.value.Value;
import org.h2.value.ValueToObjectConverter;
/**
* This class is a simple result set and meta data implementation.
* It can be used in Java functions that return a result set.
* Only the most basic methods are implemented, the others throw an exception.
* This implementation is standalone, and only relies on standard classes.
* It can be extended easily if required.
*
* An application can create a result set using the following code:
*
*
* SimpleResultSet rs = new SimpleResultSet();
* rs.addColumn("ID", Types.INTEGER, 10, 0);
* rs.addColumn("NAME", Types.VARCHAR, 255, 0);
* rs.addRow(0, "Hello" });
* rs.addRow(1, "World" });
*
*
*/
public class SimpleResultSet implements ResultSet, ResultSetMetaData {
private ArrayList rows;
private Object[] currentRow;
private int rowId = -1;
private boolean wasNull;
private SimpleRowSource source;
private ArrayList columns = Utils.newSmallArrayList();
private boolean autoClose = true;
/**
* This constructor is used if the result set is later populated with
* addRow.
*/
public SimpleResultSet() {
rows = Utils.newSmallArrayList();
}
/**
* This constructor is used if the result set should retrieve the rows using
* the specified row source object.
*
* @param source the row source
*/
public SimpleResultSet(SimpleRowSource source) {
this.source = source;
}
/**
* Adds a column to the result set.
* All columns must be added before adding rows.
* This method uses the default SQL type names.
*
* @param name null is replaced with C1, C2,...
* @param sqlType the value returned in getColumnType(..)
* @param precision the precision
* @param scale the scale
*/
public void addColumn(String name, int sqlType, int precision, int scale) {
int valueType = DataType.convertSQLTypeToValueType(sqlType);
addColumn(name, sqlType, Value.getTypeName(valueType), precision, scale);
}
/**
* Adds a column to the result set.
* All columns must be added before adding rows.
*
* @param name null is replaced with C1, C2,...
* @param sqlType the value returned in getColumnType(..)
* @param sqlTypeName the type name return in getColumnTypeName(..)
* @param precision the precision
* @param scale the scale
*/
public void addColumn(String name, int sqlType, String sqlTypeName,
int precision, int scale) {
if (rows != null && !rows.isEmpty()) {
throw new IllegalStateException(
"Cannot add a column after adding rows");
}
if (name == null) {
name = "C" + (columns.size() + 1);
}
columns.add(new SimpleColumnInfo(name, sqlType, sqlTypeName, precision, scale));
}
/**
* Add a new row to the result set.
* Do not use this method when using a RowSource.
*
* @param row the row as an array of objects
*/
public void addRow(Object... row) {
if (rows == null) {
throw new IllegalStateException(
"Cannot add a row when using RowSource");
}
rows.add(row);
}
/**
* Returns ResultSet.CONCUR_READ_ONLY.
*
* @return CONCUR_READ_ONLY
*/
@Override
public int getConcurrency() {
return ResultSet.CONCUR_READ_ONLY;
}
/**
* Returns ResultSet.FETCH_FORWARD.
*
* @return FETCH_FORWARD
*/
@Override
public int getFetchDirection() {
return ResultSet.FETCH_FORWARD;
}
/**
* Returns 0.
*
* @return 0
*/
@Override
public int getFetchSize() {
return 0;
}
/**
* Returns the row number (1, 2,...) or 0 for no row.
*
* @return 0
*/
@Override
public int getRow() {
return currentRow == null ? 0 : rowId + 1;
}
/**
* Returns the result set type. This is ResultSet.TYPE_FORWARD_ONLY for
* auto-close result sets, and ResultSet.TYPE_SCROLL_INSENSITIVE for others.
*
* @return TYPE_FORWARD_ONLY or TYPE_SCROLL_INSENSITIVE
*/
@Override
public int getType() {
if (autoClose) {
return ResultSet.TYPE_FORWARD_ONLY;
}
return ResultSet.TYPE_SCROLL_INSENSITIVE;
}
/**
* Closes the result set and releases the resources.
*/
@Override
public void close() {
currentRow = null;
rows = null;
columns = null;
rowId = -1;
if (source != null) {
source.close();
source = null;
}
}
/**
* Moves the cursor to the next row of the result set.
*
* @return true if successful, false if there are no more rows
*/
@Override
public boolean next() throws SQLException {
if (source != null) {
rowId++;
currentRow = source.readRow();
if (currentRow != null) {
return true;
}
} else if (rows != null && rowId < rows.size()) {
rowId++;
if (rowId < rows.size()) {
currentRow = rows.get(rowId);
return true;
}
currentRow = null;
}
if (autoClose) {
close();
}
return false;
}
/**
* Moves the current position to before the first row, that means the result
* set is reset.
*/
@Override
public void beforeFirst() throws SQLException {
if (autoClose) {
throw DbException.getJdbcSQLException(ErrorCode.RESULT_SET_NOT_SCROLLABLE);
}
rowId = -1;
if (source != null) {
source.reset();
}
}
/**
* Returns whether the last column accessed was null.
*
* @return true if the last column accessed was null
*/
@Override
public boolean wasNull() {
return wasNull;
}
/**
* Searches for a specific column in the result set. A case-insensitive
* search is made.
*
* @param columnLabel the column label
* @return the column index (1,2,...)
* @throws SQLException if the column is not found or if the result set is
* closed
*/
@Override
public int findColumn(String columnLabel) throws SQLException {
if (columnLabel != null && columns != null) {
for (int i = 0, size = columns.size(); i < size; i++) {
if (columnLabel.equalsIgnoreCase(getColumn(i).name)) {
return i + 1;
}
}
}
throw DbException.getJdbcSQLException(ErrorCode.COLUMN_NOT_FOUND_1, columnLabel);
}
/**
* Returns a reference to itself.
*
* @return this
*/
@Override
public ResultSetMetaData getMetaData() {
return this;
}
/**
* Returns null.
*
* @return null
*/
@Override
public SQLWarning getWarnings() {
return null;
}
/**
* Returns null.
*
* @return null
*/
@Override
public Statement getStatement() {
return null;
}
/**
* INTERNAL
*/
@Override
public void clearWarnings() {
// nothing to do
}
// ---- get ---------------------------------------------
/**
* Returns the value as a java.sql.Array.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Array getArray(int columnIndex) throws SQLException {
Object[] o = (Object[]) get(columnIndex);
return o == null ? null : new SimpleArray(o);
}
/**
* Returns the value as a java.sql.Array.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Array getArray(String columnLabel) throws SQLException {
return getArray(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public InputStream getAsciiStream(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public InputStream getAsciiStream(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as a java.math.BigDecimal.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof BigDecimal)) {
o = new BigDecimal(o.toString());
}
return (BigDecimal) o;
}
/**
* Returns the value as a java.math.BigDecimal.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public BigDecimal getBigDecimal(String columnLabel) throws SQLException {
return getBigDecimal(findColumn(columnLabel));
}
/**
* @deprecated INTERNAL
*/
@Deprecated
@Override
public BigDecimal getBigDecimal(int columnIndex, int scale)
throws SQLException {
throw getUnsupportedException();
}
/**
* @deprecated INTERNAL
*/
@Deprecated
@Override
public BigDecimal getBigDecimal(String columnLabel, int scale)
throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as a java.io.InputStream.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public InputStream getBinaryStream(int columnIndex) throws SQLException {
return asInputStream(get(columnIndex));
}
private static InputStream asInputStream(Object o) throws SQLException {
if (o == null) {
return null;
} else if (o instanceof Blob) {
return ((Blob) o).getBinaryStream();
}
return (InputStream) o;
}
/**
* Returns the value as a java.io.InputStream.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public InputStream getBinaryStream(String columnLabel) throws SQLException {
return getBinaryStream(findColumn(columnLabel));
}
/**
* Returns the value as a java.sql.Blob.
* This is only supported if the
* result set was created using a Blob object.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Blob getBlob(int columnIndex) throws SQLException {
return (Blob) get(columnIndex);
}
/**
* Returns the value as a java.sql.Blob.
* This is only supported if the
* result set was created using a Blob object.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Blob getBlob(String columnLabel) throws SQLException {
return getBlob(findColumn(columnLabel));
}
/**
* Returns the value as a boolean.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public boolean getBoolean(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o == null) {
return false;
}
if (o instanceof Boolean) {
return (Boolean) o;
}
if (o instanceof Number) {
Number n = (Number) o;
if (n instanceof Double || n instanceof Float) {
return n.doubleValue() != 0;
}
if (n instanceof BigDecimal) {
return ((BigDecimal) n).signum() != 0;
}
if (n instanceof BigInteger) {
return ((BigInteger) n).signum() != 0;
}
return n.longValue() != 0;
}
return Utils.parseBoolean(o.toString(), false, true);
}
/**
* Returns the value as a boolean.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public boolean getBoolean(String columnLabel) throws SQLException {
return getBoolean(findColumn(columnLabel));
}
/**
* Returns the value as a byte.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public byte getByte(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
o = Byte.decode(o.toString());
}
return o == null ? 0 : ((Number) o).byteValue();
}
/**
* Returns the value as a byte.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public byte getByte(String columnLabel) throws SQLException {
return getByte(findColumn(columnLabel));
}
/**
* Returns the value as a byte array.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public byte[] getBytes(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o == null || o instanceof byte[]) {
return (byte[]) o;
}
if (o instanceof UUID) {
return Bits.uuidToBytes((UUID) o);
}
return JdbcUtils.serialize(o, null);
}
/**
* Returns the value as a byte array.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public byte[] getBytes(String columnLabel) throws SQLException {
return getBytes(findColumn(columnLabel));
}
/**
* Returns the value as a java.io.Reader.
* This is only supported if the
* result set was created using a Clob or Reader object.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Reader getCharacterStream(int columnIndex) throws SQLException {
return asReader(get(columnIndex));
}
private static Reader asReader(Object o) throws SQLException {
if (o == null) {
return null;
} else if (o instanceof Clob) {
return ((Clob) o).getCharacterStream();
}
return (Reader) o;
}
/**
* Returns the value as a java.io.Reader.
* This is only supported if the
* result set was created using a Clob or Reader object.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Reader getCharacterStream(String columnLabel) throws SQLException {
return getCharacterStream(findColumn(columnLabel));
}
/**
* Returns the value as a java.sql.Clob.
* This is only supported if the
* result set was created using a Clob object.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Clob getClob(int columnIndex) throws SQLException {
return (Clob) get(columnIndex);
}
/**
* Returns the value as a java.sql.Clob.
* This is only supported if the
* result set was created using a Clob object.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Clob getClob(String columnLabel) throws SQLException {
return getClob(findColumn(columnLabel));
}
/**
* Returns the value as an java.sql.Date.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Date getDate(int columnIndex) throws SQLException {
return (Date) get(columnIndex);
}
/**
* Returns the value as a java.sql.Date.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Date getDate(String columnLabel) throws SQLException {
return getDate(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public Date getDate(int columnIndex, Calendar cal) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Date getDate(String columnLabel, Calendar cal) throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as an double.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public double getDouble(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
return Double.parseDouble(o.toString());
}
return o == null ? 0 : ((Number) o).doubleValue();
}
/**
* Returns the value as a double.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public double getDouble(String columnLabel) throws SQLException {
return getDouble(findColumn(columnLabel));
}
/**
* Returns the value as a float.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public float getFloat(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
return Float.parseFloat(o.toString());
}
return o == null ? 0 : ((Number) o).floatValue();
}
/**
* Returns the value as a float.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public float getFloat(String columnLabel) throws SQLException {
return getFloat(findColumn(columnLabel));
}
/**
* Returns the value as an int.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public int getInt(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
o = Integer.decode(o.toString());
}
return o == null ? 0 : ((Number) o).intValue();
}
/**
* Returns the value as an int.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public int getInt(String columnLabel) throws SQLException {
return getInt(findColumn(columnLabel));
}
/**
* Returns the value as a long.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public long getLong(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
o = Long.decode(o.toString());
}
return o == null ? 0 : ((Number) o).longValue();
}
/**
* Returns the value as a long.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public long getLong(String columnLabel) throws SQLException {
return getLong(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public Reader getNCharacterStream(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Reader getNCharacterStream(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public NClob getNClob(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public NClob getNClob(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public String getNString(int columnIndex) throws SQLException {
return getString(columnIndex);
}
/**
* INTERNAL
*/
@Override
public String getNString(String columnLabel) throws SQLException {
return getString(columnLabel);
}
/**
* Returns the value as an Object.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Object getObject(int columnIndex) throws SQLException {
return get(columnIndex);
}
/**
* Returns the value as an Object.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Object getObject(String columnLabel) throws SQLException {
return getObject(findColumn(columnLabel));
}
/**
* Returns the value as an Object of the specified type.
*
* @param columnIndex the column index (1, 2, ...)
* @param type the class of the returned value
* @return the value
*/
@SuppressWarnings("unchecked")
@Override
public T getObject(int columnIndex, Class type) throws SQLException {
if (get(columnIndex) == null) {
return null;
}
if (type == BigDecimal.class) {
return (T) getBigDecimal(columnIndex);
} else if (type == BigInteger.class) {
return (T) getBigDecimal(columnIndex).toBigInteger();
} else if (type == String.class) {
return (T) getString(columnIndex);
} else if (type == Boolean.class) {
return (T) (Boolean) getBoolean(columnIndex);
} else if (type == Byte.class) {
return (T) (Byte) getByte(columnIndex);
} else if (type == Short.class) {
return (T) (Short) getShort(columnIndex);
} else if (type == Integer.class) {
return (T) (Integer) getInt(columnIndex);
} else if (type == Long.class) {
return (T) (Long) getLong(columnIndex);
} else if (type == Float.class) {
return (T) (Float) getFloat(columnIndex);
} else if (type == Double.class) {
return (T) (Double) getDouble(columnIndex);
} else if (type == Date.class) {
return (T) getDate(columnIndex);
} else if (type == Time.class) {
return (T) getTime(columnIndex);
} else if (type == Timestamp.class) {
return (T) getTimestamp(columnIndex);
} else if (type == UUID.class) {
return (T) getObject(columnIndex);
} else if (type == byte[].class) {
return (T) getBytes(columnIndex);
} else if (type == java.sql.Array.class) {
return (T) getArray(columnIndex);
} else if (type == Blob.class) {
return (T) getBlob(columnIndex);
} else if (type == Clob.class) {
return (T) getClob(columnIndex);
} else {
throw getUnsupportedException();
}
}
/**
* Returns the value as an Object of the specified type.
*
* @param columnName the column name
* @param type the class of the returned value
* @return the value
*/
@Override
public T getObject(String columnName, Class type) throws SQLException {
return getObject(findColumn(columnName), type);
}
/**
* INTERNAL
*/
@Override
public Object getObject(int columnIndex, Map> map)
throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Object getObject(String columnLabel, Map> map)
throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Ref getRef(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Ref getRef(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public RowId getRowId(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public RowId getRowId(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as a short.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public short getShort(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o != null && !(o instanceof Number)) {
o = Short.decode(o.toString());
}
return o == null ? 0 : ((Number) o).shortValue();
}
/**
* Returns the value as a short.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public short getShort(String columnLabel) throws SQLException {
return getShort(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public SQLXML getSQLXML(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public SQLXML getSQLXML(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as a String.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public String getString(int columnIndex) throws SQLException {
Object o = get(columnIndex);
if (o == null) {
return null;
}
switch (columns.get(columnIndex - 1).type) {
case Types.CLOB:
Clob c = (Clob) o;
return c.getSubString(1, MathUtils.convertLongToInt(c.length()));
}
return o.toString();
}
/**
* Returns the value as a String.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public String getString(String columnLabel) throws SQLException {
return getString(findColumn(columnLabel));
}
/**
* Returns the value as an java.sql.Time.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Time getTime(int columnIndex) throws SQLException {
return (Time) get(columnIndex);
}
/**
* Returns the value as a java.sql.Time.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Time getTime(String columnLabel) throws SQLException {
return getTime(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public Time getTime(int columnIndex, Calendar cal) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Time getTime(String columnLabel, Calendar cal) throws SQLException {
throw getUnsupportedException();
}
/**
* Returns the value as an java.sql.Timestamp.
*
* @param columnIndex (1,2,...)
* @return the value
*/
@Override
public Timestamp getTimestamp(int columnIndex) throws SQLException {
return (Timestamp) get(columnIndex);
}
/**
* Returns the value as a java.sql.Timestamp.
*
* @param columnLabel the column label
* @return the value
*/
@Override
public Timestamp getTimestamp(String columnLabel) throws SQLException {
return getTimestamp(findColumn(columnLabel));
}
/**
* INTERNAL
*/
@Override
public Timestamp getTimestamp(int columnIndex, Calendar cal)
throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Timestamp getTimestamp(String columnLabel, Calendar cal)
throws SQLException {
throw getUnsupportedException();
}
/**
* @deprecated INTERNAL
*/
@Deprecated
@Override
public InputStream getUnicodeStream(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* @deprecated INTERNAL
*/
@Deprecated
@Override
public InputStream getUnicodeStream(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public URL getURL(int columnIndex) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public URL getURL(String columnLabel) throws SQLException {
throw getUnsupportedException();
}
// ---- update ---------------------------------------------
/**
* INTERNAL
*/
@Override
public void updateArray(int columnIndex, Array x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateArray(String columnLabel, Array x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(int columnIndex, InputStream x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(String columnLabel, InputStream x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(int columnIndex, InputStream x, int length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(String columnLabel, InputStream x, int length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(int columnIndex, InputStream x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateAsciiStream(String columnLabel, InputStream x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBigDecimal(int columnIndex, BigDecimal x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBigDecimal(String columnLabel, BigDecimal x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(int columnIndex, InputStream x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(String columnLabel, InputStream x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(int columnIndex, InputStream x, int length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(String columnLabel, InputStream x, int length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(int columnIndex, InputStream x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBinaryStream(String columnLabel, InputStream x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(int columnIndex, Blob x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(String columnLabel, Blob x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(int columnIndex, InputStream x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(String columnLabel, InputStream x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(int columnIndex, InputStream x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBlob(String columnLabel, InputStream x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBoolean(int columnIndex, boolean x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBoolean(String columnLabel, boolean x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateByte(int columnIndex, byte x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateByte(String columnLabel, byte x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateBytes(int columnIndex, byte[] x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateBytes(String columnLabel, byte[] x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(int columnIndex, Reader x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(String columnLabel, Reader x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(int columnIndex, Reader x, int length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(String columnLabel, Reader x, int length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(int columnIndex, Reader x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateCharacterStream(String columnLabel, Reader x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(int columnIndex, Clob x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(String columnLabel, Clob x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(int columnIndex, Reader x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(String columnLabel, Reader x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(int columnIndex, Reader x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateClob(String columnLabel, Reader x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateDate(int columnIndex, Date x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateDate(String columnLabel, Date x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateDouble(int columnIndex, double x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateDouble(String columnLabel, double x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateFloat(int columnIndex, float x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateFloat(String columnLabel, float x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateInt(int columnIndex, int x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateInt(String columnLabel, int x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateLong(int columnIndex, long x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateLong(String columnLabel, long x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNCharacterStream(int columnIndex, Reader x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNCharacterStream(String columnLabel, Reader x)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNCharacterStream(int columnIndex, Reader x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNCharacterStream(String columnLabel, Reader x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(int columnIndex, NClob x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(String columnLabel, NClob x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(int columnIndex, Reader x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(String columnLabel, Reader x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(int columnIndex, Reader x, long length)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNClob(String columnLabel, Reader x, long length)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNString(int columnIndex, String x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateNString(String columnLabel, String x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateNull(int columnIndex) throws SQLException {
update(columnIndex, null);
}
/**
* INTERNAL
*/
@Override
public void updateNull(String columnLabel) throws SQLException {
update(columnLabel, null);
}
/**
* INTERNAL
*/
@Override
public void updateObject(int columnIndex, Object x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateObject(String columnLabel, Object x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateObject(int columnIndex, Object x, int scale)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateObject(String columnLabel, Object x, int scale)
throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateRef(int columnIndex, Ref x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateRef(String columnLabel, Ref x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateRowId(int columnIndex, RowId x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateRowId(String columnLabel, RowId x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateShort(int columnIndex, short x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateShort(String columnLabel, short x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateSQLXML(int columnIndex, SQLXML x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateSQLXML(String columnLabel, SQLXML x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateString(int columnIndex, String x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateString(String columnLabel, String x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateTime(int columnIndex, Time x) throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateTime(String columnLabel, Time x) throws SQLException {
update(columnLabel, x);
}
/**
* INTERNAL
*/
@Override
public void updateTimestamp(int columnIndex, Timestamp x)
throws SQLException {
update(columnIndex, x);
}
/**
* INTERNAL
*/
@Override
public void updateTimestamp(String columnLabel, Timestamp x)
throws SQLException {
update(columnLabel, x);
}
// ---- result set meta data ---------------------------------------------
/**
* Returns the column count.
*
* @return the column count
*/
@Override
public int getColumnCount() {
return columns.size();
}
/**
* Returns 15.
*
* @param columnIndex (1,2,...)
* @return 15
*/
@Override
public int getColumnDisplaySize(int columnIndex) {
return 15;
}
/**
* Returns the SQL type.
*
* @param columnIndex (1,2,...)
* @return the SQL type
*/
@Override
public int getColumnType(int columnIndex) throws SQLException {
return getColumn(columnIndex - 1).type;
}
/**
* Returns the precision.
*
* @param columnIndex (1,2,...)
* @return the precision
*/
@Override
public int getPrecision(int columnIndex) throws SQLException {
return getColumn(columnIndex - 1).precision;
}
/**
* Returns the scale.
*
* @param columnIndex (1,2,...)
* @return the scale
*/
@Override
public int getScale(int columnIndex) throws SQLException {
return getColumn(columnIndex - 1).scale;
}
/**
* Returns ResultSetMetaData.columnNullableUnknown.
*
* @param columnIndex (1,2,...)
* @return columnNullableUnknown
*/
@Override
public int isNullable(int columnIndex) {
return ResultSetMetaData.columnNullableUnknown;
}
/**
* Returns false.
*
* @param columnIndex (1,2,...)
* @return false
*/
@Override
public boolean isAutoIncrement(int columnIndex) {
return false;
}
/**
* Returns true.
*
* @param columnIndex (1,2,...)
* @return true
*/
@Override
public boolean isCaseSensitive(int columnIndex) {
return true;
}
/**
* Returns false.
*
* @param columnIndex (1,2,...)
* @return false
*/
@Override
public boolean isCurrency(int columnIndex) {
return false;
}
/**
* Returns false.
*
* @param columnIndex (1,2,...)
* @return false
*/
@Override
public boolean isDefinitelyWritable(int columnIndex) {
return false;
}
/**
* Returns true.
*
* @param columnIndex (1,2,...)
* @return true
*/
@Override
public boolean isReadOnly(int columnIndex) {
return true;
}
/**
* Returns true.
*
* @param columnIndex (1,2,...)
* @return true
*/
@Override
public boolean isSearchable(int columnIndex) {
return true;
}
/**
* Returns true.
*
* @param columnIndex (1,2,...)
* @return true
*/
@Override
public boolean isSigned(int columnIndex) {
return true;
}
/**
* Returns false.
*
* @param columnIndex (1,2,...)
* @return false
*/
@Override
public boolean isWritable(int columnIndex) {
return false;
}
/**
* Returns empty string.
*
* @param columnIndex (1,2,...)
* @return empty string
*/
@Override
public String getCatalogName(int columnIndex) {
return "";
}
/**
* Returns the Java class name if this column.
*
* @param columnIndex (1,2,...)
* @return the class name
*/
@Override
public String getColumnClassName(int columnIndex) throws SQLException {
int type = DataType.getValueTypeFromResultSet(this, columnIndex);
return ValueToObjectConverter.getDefaultClass(type, true).getName();
}
/**
* Returns the column label.
*
* @param columnIndex (1,2,...)
* @return the column label
*/
@Override
public String getColumnLabel(int columnIndex) throws SQLException {
return getColumn(columnIndex - 1).name;
}
/**
* Returns the column name.
*
* @param columnIndex (1,2,...)
* @return the column name
*/
@Override
public String getColumnName(int columnIndex) throws SQLException {
return getColumnLabel(columnIndex);
}
/**
* Returns the data type name of a column.
*
* @param columnIndex (1,2,...)
* @return the type name
*/
@Override
public String getColumnTypeName(int columnIndex) throws SQLException {
return getColumn(columnIndex - 1).typeName;
}
/**
* Returns empty string.
*
* @param columnIndex (1,2,...)
* @return empty string
*/
@Override
public String getSchemaName(int columnIndex) {
return "";
}
/**
* Returns empty string.
*
* @param columnIndex (1,2,...)
* @return empty string
*/
@Override
public String getTableName(int columnIndex) {
return "";
}
// ---- unsupported / result set -----------------------------------
/**
* INTERNAL
*/
@Override
public void afterLast() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void cancelRowUpdates() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void deleteRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void insertRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void moveToCurrentRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void moveToInsertRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void refreshRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void updateRow() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean first() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean isAfterLast() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean isBeforeFirst() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean isFirst() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean isLast() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean last() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean previous() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean rowDeleted() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean rowInserted() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean rowUpdated() throws SQLException {
return true;
}
/**
* INTERNAL
*/
@Override
public void setFetchDirection(int direction) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void setFetchSize(int rows) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean absolute(int row) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public boolean relative(int offset) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public String getCursorName() throws SQLException {
throw getUnsupportedException();
}
// --- private -----------------------------
private void update(int columnIndex, Object obj) throws SQLException {
checkClosed();
checkColumnIndex(columnIndex);
this.currentRow[columnIndex - 1] = obj;
}
private void update(String columnLabel, Object obj) throws SQLException {
this.currentRow[findColumn(columnLabel) - 1] = obj;
}
/**
* INTERNAL
*/
static SQLException getUnsupportedException() {
return DbException.getJdbcSQLException(ErrorCode.FEATURE_NOT_SUPPORTED_1);
}
private void checkClosed() throws SQLException {
if (columns == null) {
throw DbException.getJdbcSQLException(ErrorCode.OBJECT_CLOSED);
}
}
private void checkColumnIndex(int columnIndex) throws SQLException {
if (columnIndex < 1 || columnIndex > columns.size()) {
throw DbException.getInvalidValueException(
"columnIndex", columnIndex).getSQLException();
}
}
private Object get(int columnIndex) throws SQLException {
if (currentRow == null) {
throw DbException.getJdbcSQLException(ErrorCode.NO_DATA_AVAILABLE);
}
checkColumnIndex(columnIndex);
columnIndex--;
Object o = columnIndex < currentRow.length ?
currentRow[columnIndex] : null;
wasNull = o == null;
return o;
}
private SimpleColumnInfo getColumn(int i) throws SQLException {
checkColumnIndex(i + 1);
return columns.get(i);
}
/**
* Returns the current result set holdability.
*
* @return the holdability
*/
@Override
public int getHoldability() {
return ResultSet.HOLD_CURSORS_OVER_COMMIT;
}
/**
* Returns whether this result set has been closed.
*
* @return true if the result set was closed
*/
@Override
public boolean isClosed() {
return rows == null && source == null;
}
/**
* Return an object of this class if possible.
*
* @param iface the class
* @return this
*/
@Override
@SuppressWarnings("unchecked")
public T unwrap(Class iface) throws SQLException {
try {
if (isWrapperFor(iface)) {
return (T) this;
}
throw DbException.getInvalidValueException("iface", iface);
} catch (Exception e) {
throw DbException.toSQLException(e);
}
}
/**
* Checks if unwrap can return an object of this class.
*
* @param iface the class
* @return whether or not the interface is assignable from this class
*/
@Override
public boolean isWrapperFor(Class iface) throws SQLException {
return iface != null && iface.isAssignableFrom(getClass());
}
/**
* Set the auto-close behavior. If enabled (the default), the result set is
* closed after reading the last row.
*
* @param autoClose the new value
*/
public void setAutoClose(boolean autoClose) {
this.autoClose = autoClose;
}
/**
* Get the current auto-close behavior.
*
* @return the auto-close value
*/
public boolean getAutoClose() {
return autoClose;
}
/**
* A simple array implementation,
* backed by an object array
*/
public static class SimpleArray implements Array {
private final Object[] value;
SimpleArray(Object[] value) {
this.value = value;
}
/**
* Get the object array.
*
* @return the object array
*/
@Override
public Object getArray() {
return value;
}
/**
* INTERNAL
*/
@Override
public Object getArray(Map> map) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Object getArray(long index, int count) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public Object getArray(long index, int count, Map> map)
throws SQLException {
throw getUnsupportedException();
}
/**
* Get the base type of this array.
*
* @return Types.NULL
*/
@Override
public int getBaseType() {
return Types.NULL;
}
/**
* Get the base type name of this array.
*
* @return "NULL"
*/
@Override
public String getBaseTypeName() {
return "NULL";
}
/**
* INTERNAL
*/
@Override
public ResultSet getResultSet() throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public ResultSet getResultSet(Map> map)
throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public ResultSet getResultSet(long index, int count)
throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public ResultSet getResultSet(long index, int count,
Map> map) throws SQLException {
throw getUnsupportedException();
}
/**
* INTERNAL
*/
@Override
public void free() {
// nothing to do
}
}
}