org.jooq.impl.CursorImpl Maven / Gradle / Ivy
/*
* 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
*
* https://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.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
*
* For more information, please visit: https://www.jooq.org/legal/licensing
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*/
package org.jooq.impl;
import static java.lang.Boolean.TRUE;
import static java.util.Collections.emptyList;
// ...
import static org.jooq.impl.RowAsField.NO_NATIVE_SUPPORT;
import static org.jooq.impl.Tools.embeddedFields;
import static org.jooq.impl.Tools.embeddedRecordType;
import static org.jooq.impl.Tools.recordFactory;
import static org.jooq.impl.Tools.uncoerce;
import static org.jooq.impl.Tools.BooleanDataKey.DATA_MULTISET_CONTENT;
import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
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.SQLType;
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.Calendar;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.function.Supplier;
import org.jooq.Attachable;
import org.jooq.BindingGetResultSetContext;
import org.jooq.ContextConverter;
import org.jooq.ExecuteContext;
import org.jooq.ExecuteListener;
import org.jooq.Field;
// ...
import org.jooq.Record;
import org.jooq.Result;
import org.jooq.Table;
import org.jooq.exception.ControlFlowSignal;
import org.jooq.tools.JooqLogger;
import org.jooq.tools.jdbc.JDBC41ResultSet;
import org.jooq.tools.jdbc.JDBCUtils;
/**
* @author Lukas Eder
*/
final class CursorImpl extends AbstractCursor {
private static final JooqLogger log = JooqLogger.getLogger(CursorImpl.class);
final ExecuteContext ctx;
final ExecuteListener listener;
private final boolean[] intern;
private final boolean keepResultSet;
private final boolean keepStatement;
private final boolean autoclosing;
private final int maxRows;
private final Supplier factory;
private boolean isClosed;
private transient CursorResultSet rs;
private transient Iterator iterator;
private transient int rows;
@SuppressWarnings("unchecked")
CursorImpl(ExecuteContext ctx, ExecuteListener listener, Field[] fields, int[] internIndexes, boolean keepStatement, boolean keepResultSet) {
this(ctx, listener, fields, internIndexes, keepStatement, keepResultSet, null, (Class) RecordImplN.class, 0, true);
}
CursorImpl(ExecuteContext ctx, ExecuteListener listener, Field[] fields, int[] internIndexes, boolean keepStatement, boolean keepResultSet, Table table, Class type, int maxRows, boolean autoclosing) {
super(ctx.configuration(), (AbstractRow) Tools.row0(fields));
this.ctx = ctx;
this.listener = (listener != null ? listener : ExecuteListeners.getAndStart(ctx));
this.factory = recordFactory(table, type, this.fields);
this.keepStatement = keepStatement;
this.keepResultSet = keepResultSet;
this.rs = new CursorResultSet();
this.maxRows = maxRows;
this.autoclosing = autoclosing;
if (internIndexes != null) {
this.intern = new boolean[fields.length];
for (int i : internIndexes)
intern[i] = true;
}
else
this.intern = null;
}
// -------------------------------------------------------------------------
// XXX: Attachable API
// -------------------------------------------------------------------------
@Override
final List getAttachables() {
return emptyList();
}
// -------------------------------------------------------------------------
// XXX: Cursor API
// -------------------------------------------------------------------------
@Override
public final Iterator iterator() {
if (iterator == null) {
iterator = new CursorIterator();
listener.fetchStart(ctx);
}
return iterator;
}
@Override
public final Result fetchNext(int number) {
// [#1157] This invokes listener.fetchStart(ctx), which has to be called
// Before listener.resultStart(ctx)
iterator();
ResultImpl result = new ResultImpl<>(((DefaultExecuteContext) ctx).originalConfiguration(), fields);
ctx.result(result);
listener.resultStart(ctx);
for (int i = 0; i < number && iterator().hasNext(); i++)
result.addRecord(iterator().next());
ctx.result(result);
listener.resultEnd(ctx);
return result;
}
@Override
public final void close() {
JDBCUtils.safeClose(rs);
rs = null;
isClosed = true;
}
@Override
public final boolean isClosed() {
return isClosed;
}
@Override
public final ResultSet resultSet() {
return rs;
}
/**
* A wrapper for the underlying JDBC {@link ResultSet} and {@link Statement}
*/
final class CursorResultSet extends JDBC41ResultSet implements ResultSet {
// ---------------------------------------------------------------------
// XXX: Wrapper methods
// ---------------------------------------------------------------------
@Override
public final T unwrap(Class iface) throws SQLException {
return ctx.resultSet().unwrap(iface);
}
@Override
public final boolean isWrapperFor(Class iface) throws SQLException {
return ctx.resultSet().isWrapperFor(iface);
}
// ---------------------------------------------------------------------
// XXX: Informational methods
// ---------------------------------------------------------------------
@Override
public final Statement getStatement() throws SQLException {
return ctx.resultSet().getStatement();
}
@Override
public final SQLWarning getWarnings() throws SQLException {
return ctx.resultSet().getWarnings();
}
@Override
public final void clearWarnings() throws SQLException {
ctx.resultSet().clearWarnings();
}
@Override
public final String getCursorName() throws SQLException {
return ctx.resultSet().getCursorName();
}
@Override
public final ResultSetMetaData getMetaData() throws SQLException {
return ctx.resultSet().getMetaData();
}
@Override
public final int findColumn(String columnLabel) throws SQLException {
return ctx.resultSet().findColumn(columnLabel);
}
@Override
public final void setFetchDirection(int direction) throws SQLException {
ctx.resultSet().setFetchDirection(direction);
}
@Override
public final int getFetchDirection() throws SQLException {
return ctx.resultSet().getFetchDirection();
}
@Override
public final void setFetchSize(int rows) throws SQLException {
ctx.resultSet().setFetchSize(rows);
}
@Override
public final int getFetchSize() throws SQLException {
return ctx.resultSet().getFetchSize();
}
@Override
public final int getType() throws SQLException {
return ctx.resultSet().getType();
}
@Override
public final int getConcurrency() throws SQLException {
return ctx.resultSet().getConcurrency();
}
@Override
public final int getHoldability() throws SQLException {
return ctx.resultSet().getHoldability();
}
// ---------------------------------------------------------------------
// XXX: Navigational methods
// ---------------------------------------------------------------------
@Override
public final boolean isBeforeFirst() throws SQLException {
return ctx.resultSet().isBeforeFirst();
}
@Override
public final boolean isAfterLast() throws SQLException {
return ctx.resultSet().isAfterLast();
}
@Override
public final boolean isFirst() throws SQLException {
return ctx.resultSet().isFirst();
}
@Override
public final boolean isLast() throws SQLException {
return ctx.resultSet().isLast();
}
@Override
public final boolean next() throws SQLException {
return ctx.resultSet().next();
}
@Override
public final boolean previous() throws SQLException {
return ctx.resultSet().previous();
}
@Override
public final void beforeFirst() throws SQLException {
ctx.resultSet().beforeFirst();
}
@Override
public final void afterLast() throws SQLException {
ctx.resultSet().afterLast();
}
@Override
public final boolean first() throws SQLException {
return ctx.resultSet().first();
}
@Override
public final boolean last() throws SQLException {
return ctx.resultSet().last();
}
@Override
public final int getRow() throws SQLException {
return ctx.resultSet().getRow();
}
@Override
public final boolean absolute(int row) throws SQLException {
return ctx.resultSet().absolute(row);
}
@Override
public final boolean relative(int r) throws SQLException {
return ctx.resultSet().relative(r);
}
@Override
public final void moveToInsertRow() throws SQLException {
ctx.resultSet().moveToInsertRow();
}
@Override
public final void moveToCurrentRow() throws SQLException {
ctx.resultSet().moveToCurrentRow();
}
@Override
public final void close() throws SQLException {
ctx.rows(rows);
// [#12568] Make sure exceptions thrown in fetchEnd() don't produce
// connection leaks
try {
listener.fetchEnd(ctx);
}
// [#1868] If this Result / Cursor was "kept" through a lazy
// execution, we must assure that the ExecuteListener lifecycle is
// correctly terminated.
finally {
Tools.safeClose(listener, ctx, keepStatement, keepResultSet);
}
}
@Override
public final boolean isClosed() throws SQLException {
return ctx.resultSet().isClosed();
}
// ---------------------------------------------------------------------
// XXX: Data retrieval
// ---------------------------------------------------------------------
@Override
public final boolean wasNull() throws SQLException {
return ctx.resultSet().wasNull();
}
@Override
public final Array getArray(int columnIndex) throws SQLException {
return ctx.resultSet().getArray(columnIndex);
}
@Override
public final Array getArray(String columnLabel) throws SQLException {
return ctx.resultSet().getArray(columnLabel);
}
@Override
public final InputStream getAsciiStream(int columnIndex) throws SQLException {
return ctx.resultSet().getAsciiStream(columnIndex);
}
@Override
public final InputStream getAsciiStream(String columnLabel) throws SQLException {
return ctx.resultSet().getAsciiStream(columnLabel);
}
@Override
public final BigDecimal getBigDecimal(int columnIndex) throws SQLException {
return ctx.resultSet().getBigDecimal(columnIndex);
}
@Override
@Deprecated
public final BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
return ctx.resultSet().getBigDecimal(columnIndex, scale);
}
@Override
public final BigDecimal getBigDecimal(String columnLabel) throws SQLException {
return ctx.resultSet().getBigDecimal(columnLabel);
}
@Override
@Deprecated
public final BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException {
return ctx.resultSet().getBigDecimal(columnLabel, scale);
}
@Override
public final InputStream getBinaryStream(int columnIndex) throws SQLException {
return ctx.resultSet().getBinaryStream(columnIndex);
}
@Override
public final InputStream getBinaryStream(String columnLabel) throws SQLException {
return ctx.resultSet().getBinaryStream(columnLabel);
}
@Override
public final Blob getBlob(int columnIndex) throws SQLException {
return ctx.resultSet().getBlob(columnIndex);
}
@Override
public final Blob getBlob(String columnLabel) throws SQLException {
return ctx.resultSet().getBlob(columnLabel);
}
@Override
public final boolean getBoolean(int columnIndex) throws SQLException {
return ctx.resultSet().getBoolean(columnIndex);
}
@Override
public final boolean getBoolean(String columnLabel) throws SQLException {
return ctx.resultSet().getBoolean(columnLabel);
}
@Override
public final byte getByte(int columnIndex) throws SQLException {
return ctx.resultSet().getByte(columnIndex);
}
@Override
public final byte getByte(String columnLabel) throws SQLException {
return ctx.resultSet().getByte(columnLabel);
}
@Override
public final byte[] getBytes(int columnIndex) throws SQLException {
return ctx.resultSet().getBytes(columnIndex);
}
@Override
public final byte[] getBytes(String columnLabel) throws SQLException {
return ctx.resultSet().getBytes(columnLabel);
}
@Override
public final Reader getCharacterStream(int columnIndex) throws SQLException {
return ctx.resultSet().getCharacterStream(columnIndex);
}
@Override
public final Reader getCharacterStream(String columnLabel) throws SQLException {
return ctx.resultSet().getCharacterStream(columnLabel);
}
@Override
public final Clob getClob(int columnIndex) throws SQLException {
return ctx.resultSet().getClob(columnIndex);
}
@Override
public final Clob getClob(String columnLabel) throws SQLException {
return ctx.resultSet().getClob(columnLabel);
}
@Override
public final Date getDate(int columnIndex) throws SQLException {
return ctx.resultSet().getDate(columnIndex);
}
@Override
public final Date getDate(int columnIndex, Calendar cal) throws SQLException {
return ctx.resultSet().getDate(columnIndex, cal);
}
@Override
public final Date getDate(String columnLabel) throws SQLException {
return ctx.resultSet().getDate(columnLabel);
}
@Override
public final Date getDate(String columnLabel, Calendar cal) throws SQLException {
return ctx.resultSet().getDate(columnLabel, cal);
}
@Override
public final double getDouble(int columnIndex) throws SQLException {
return ctx.resultSet().getDouble(columnIndex);
}
@Override
public final double getDouble(String columnLabel) throws SQLException {
return ctx.resultSet().getDouble(columnLabel);
}
@Override
public final float getFloat(int columnIndex) throws SQLException {
return ctx.resultSet().getFloat(columnIndex);
}
@Override
public final float getFloat(String columnLabel) throws SQLException {
return ctx.resultSet().getFloat(columnLabel);
}
@Override
public final int getInt(int columnIndex) throws SQLException {
return ctx.resultSet().getInt(columnIndex);
}
@Override
public final int getInt(String columnLabel) throws SQLException {
return ctx.resultSet().getInt(columnLabel);
}
@Override
public final long getLong(int columnIndex) throws SQLException {
return ctx.resultSet().getLong(columnIndex);
}
@Override
public final long getLong(String columnLabel) throws SQLException {
return ctx.resultSet().getLong(columnLabel);
}
@Override
public final Reader getNCharacterStream(int columnIndex) throws SQLException {
return ctx.resultSet().getNCharacterStream(columnIndex);
}
@Override
public final Reader getNCharacterStream(String columnLabel) throws SQLException {
return ctx.resultSet().getNCharacterStream(columnLabel);
}
@Override
public final NClob getNClob(int columnIndex) throws SQLException {
return ctx.resultSet().getNClob(columnIndex);
}
@Override
public final NClob getNClob(String columnLabel) throws SQLException {
return ctx.resultSet().getNClob(columnLabel);
}
@Override
public final String getNString(int columnIndex) throws SQLException {
return ctx.resultSet().getNString(columnIndex);
}
@Override
public final String getNString(String columnLabel) throws SQLException {
return ctx.resultSet().getNString(columnLabel);
}
@Override
public final Object getObject(int columnIndex) throws SQLException {
return ctx.resultSet().getObject(columnIndex);
}
@Override
public final Object getObject(int columnIndex, Map> map) throws SQLException {
return ctx.resultSet().getObject(columnIndex, map);
}
@Override
public final Object getObject(String columnLabel) throws SQLException {
return ctx.resultSet().getObject(columnLabel);
}
@Override
public final Object getObject(String columnLabel, Map> map) throws SQLException {
return ctx.resultSet().getObject(columnLabel, map);
}
@Override
public final Ref getRef(int columnIndex) throws SQLException {
return ctx.resultSet().getRef(columnIndex);
}
@Override
public final Ref getRef(String columnLabel) throws SQLException {
return ctx.resultSet().getRef(columnLabel);
}
@Override
public final RowId getRowId(int columnIndex) throws SQLException {
return ctx.resultSet().getRowId(columnIndex);
}
@Override
public final RowId getRowId(String columnLabel) throws SQLException {
return ctx.resultSet().getRowId(columnLabel);
}
@Override
public final short getShort(int columnIndex) throws SQLException {
return ctx.resultSet().getShort(columnIndex);
}
@Override
public final short getShort(String columnLabel) throws SQLException {
return ctx.resultSet().getShort(columnLabel);
}
@Override
public final SQLXML getSQLXML(int columnIndex) throws SQLException {
return ctx.resultSet().getSQLXML(columnIndex);
}
@Override
public final SQLXML getSQLXML(String columnLabel) throws SQLException {
return ctx.resultSet().getSQLXML(columnLabel);
}
@Override
public final String getString(int columnIndex) throws SQLException {
return ctx.resultSet().getString(columnIndex);
}
@Override
public final String getString(String columnLabel) throws SQLException {
return ctx.resultSet().getString(columnLabel);
}
@Override
public final Time getTime(int columnIndex) throws SQLException {
return ctx.resultSet().getTime(columnIndex);
}
@Override
public final Time getTime(int columnIndex, Calendar cal) throws SQLException {
return ctx.resultSet().getTime(columnIndex, cal);
}
@Override
public final Time getTime(String columnLabel) throws SQLException {
return ctx.resultSet().getTime(columnLabel);
}
@Override
public final Time getTime(String columnLabel, Calendar cal) throws SQLException {
return ctx.resultSet().getTime(columnLabel, cal);
}
@Override
public final Timestamp getTimestamp(int columnIndex) throws SQLException {
return ctx.resultSet().getTimestamp(columnIndex);
}
@Override
public final Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
return ctx.resultSet().getTimestamp(columnIndex, cal);
}
@Override
public final Timestamp getTimestamp(String columnLabel) throws SQLException {
return ctx.resultSet().getTimestamp(columnLabel);
}
@Override
public final Timestamp getTimestamp(String columnLabel, Calendar cal) throws SQLException {
return ctx.resultSet().getTimestamp(columnLabel, cal);
}
@Override
@Deprecated
public final InputStream getUnicodeStream(int columnIndex) throws SQLException {
return ctx.resultSet().getUnicodeStream(columnIndex);
}
@Override
@Deprecated
public final InputStream getUnicodeStream(String columnLabel) throws SQLException {
return ctx.resultSet().getUnicodeStream(columnLabel);
}
@Override
public final URL getURL(int columnIndex) throws SQLException {
return ctx.resultSet().getURL(columnIndex);
}
@Override
public final URL getURL(String columnLabel) throws SQLException {
return ctx.resultSet().getURL(columnLabel);
}
// ---------------------------------------------------------------------
// XXX: JDBC 4.1 methods
// ---------------------------------------------------------------------
@Override
public final T getObject(int columnIndex, Class type) throws SQLException {
return ctx.resultSet().getObject(columnIndex, type);
}
@Override
public final T getObject(String columnLabel, Class type) throws SQLException {
return ctx.resultSet().getObject(columnLabel, type);
}
// ---------------------------------------------------------------------
// XXX: Data modification
// ---------------------------------------------------------------------
private final void logUpdate(int columnIndex, Object x) throws SQLException {
if (log.isDebugEnabled()) {
log.debug("Updating Result", "Updating Result position " + getRow() + ":" + columnIndex + " with value " + x);
}
}
private final void logUpdate(String columnLabel, Object x) throws SQLException {
if (log.isDebugEnabled()) {
log.debug("Updating Result", "Updating Result position " + getRow() + ":" + columnLabel + " with value " + x);
}
}
@Override
public final boolean rowUpdated() throws SQLException {
return ctx.resultSet().rowUpdated();
}
@Override
public final boolean rowInserted() throws SQLException {
return ctx.resultSet().rowInserted();
}
@Override
public final boolean rowDeleted() throws SQLException {
return ctx.resultSet().rowDeleted();
}
@Override
public final void insertRow() throws SQLException {
ctx.resultSet().insertRow();
}
@Override
public final void updateRow() throws SQLException {
ctx.resultSet().updateRow();
}
@Override
public final void deleteRow() throws SQLException {
ctx.resultSet().deleteRow();
}
@Override
public final void refreshRow() throws SQLException {
ctx.resultSet().refreshRow();
}
@Override
public final void cancelRowUpdates() throws SQLException {
ctx.resultSet().cancelRowUpdates();
}
@Override
public final void updateNull(int columnIndex) throws SQLException {
logUpdate(columnIndex, null);
ctx.resultSet().updateNull(columnIndex);
}
@Override
public final void updateNull(String columnLabel) throws SQLException {
logUpdate(columnLabel, null);
ctx.resultSet().updateNull(columnLabel);
}
@Override
public final void updateArray(int columnIndex, Array x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateArray(columnIndex, x);
}
@Override
public final void updateArray(String columnLabel, Array x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateArray(columnLabel, x);
}
@Override
public final void updateAsciiStream(int columnIndex, InputStream x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateAsciiStream(columnIndex, x);
}
@Override
public final void updateAsciiStream(int columnIndex, InputStream x, int length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateAsciiStream(columnIndex, x, length);
}
@Override
public final void updateAsciiStream(int columnIndex, InputStream x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateAsciiStream(columnIndex, x, length);
}
@Override
public final void updateAsciiStream(String columnLabel, InputStream x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateAsciiStream(columnLabel, x);
}
@Override
public final void updateAsciiStream(String columnLabel, InputStream x, int length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateAsciiStream(columnLabel, x, length);
}
@Override
public final void updateAsciiStream(String columnLabel, InputStream x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateAsciiStream(columnLabel, x, length);
}
@Override
public final void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBigDecimal(columnIndex, x);
}
@Override
public final void updateBigDecimal(String columnLabel, BigDecimal x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBigDecimal(columnLabel, x);
}
@Override
public final void updateBinaryStream(int columnIndex, InputStream x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBinaryStream(columnIndex, x);
}
@Override
public final void updateBinaryStream(int columnIndex, InputStream x, int length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBinaryStream(columnIndex, x, length);
}
@Override
public final void updateBinaryStream(int columnIndex, InputStream x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBinaryStream(columnIndex, x, length);
}
@Override
public final void updateBinaryStream(String columnLabel, InputStream x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBinaryStream(columnLabel, x);
}
@Override
public final void updateBinaryStream(String columnLabel, InputStream x, int length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBinaryStream(columnLabel, x, length);
}
@Override
public final void updateBinaryStream(String columnLabel, InputStream x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBinaryStream(columnLabel, x, length);
}
@Override
public final void updateBlob(int columnIndex, Blob x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBlob(columnIndex, x);
}
@Override
public final void updateBlob(int columnIndex, InputStream x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBlob(columnIndex, x, length);
}
@Override
public final void updateBlob(String columnLabel, Blob x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBlob(columnLabel, x);
}
@Override
public final void updateBlob(int columnIndex, InputStream x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBlob(columnIndex, x);
}
@Override
public final void updateBlob(String columnLabel, InputStream x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBlob(columnLabel, x);
}
@Override
public final void updateBlob(String columnLabel, InputStream x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBlob(columnLabel, x, length);
}
@Override
public final void updateBoolean(int columnIndex, boolean x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBoolean(columnIndex, x);
}
@Override
public final void updateBoolean(String columnLabel, boolean x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBoolean(columnLabel, x);
}
@Override
public final void updateByte(int columnIndex, byte x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateByte(columnIndex, x);
}
@Override
public final void updateByte(String columnLabel, byte x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateByte(columnLabel, x);
}
@Override
public final void updateBytes(int columnIndex, byte[] x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateBytes(columnIndex, x);
}
@Override
public final void updateBytes(String columnLabel, byte[] x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateBytes(columnLabel, x);
}
@Override
public final void updateCharacterStream(int columnIndex, Reader x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateCharacterStream(columnIndex, x);
}
@Override
public final void updateCharacterStream(int columnIndex, Reader x, int length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateCharacterStream(columnIndex, x, length);
}
@Override
public final void updateCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateCharacterStream(columnIndex, x, length);
}
@Override
public final void updateCharacterStream(String columnLabel, Reader x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateCharacterStream(columnLabel, x);
}
@Override
public final void updateCharacterStream(String columnLabel, Reader x, int length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateCharacterStream(columnLabel, x, length);
}
@Override
public final void updateCharacterStream(String columnLabel, Reader x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateCharacterStream(columnLabel, x, length);
}
@Override
public final void updateClob(int columnIndex, Clob x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateClob(columnIndex, x);
}
@Override
public final void updateClob(int columnIndex, Reader x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateClob(columnIndex, x);
}
@Override
public final void updateClob(int columnIndex, Reader x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateClob(columnIndex, x, length);
}
@Override
public final void updateClob(String columnLabel, Clob x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateClob(columnLabel, x);
}
@Override
public final void updateClob(String columnLabel, Reader x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateClob(columnLabel, x);
}
@Override
public final void updateClob(String columnLabel, Reader x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateClob(columnLabel, x, length);
}
@Override
public final void updateDate(int columnIndex, Date x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateDate(columnIndex, x);
}
@Override
public final void updateDate(String columnLabel, Date x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateDate(columnLabel, x);
}
@Override
public final void updateDouble(int columnIndex, double x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateDouble(columnIndex, x);
}
@Override
public final void updateDouble(String columnLabel, double x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateDouble(columnLabel, x);
}
@Override
public final void updateFloat(int columnIndex, float x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateFloat(columnIndex, x);
}
@Override
public final void updateFloat(String columnLabel, float x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateFloat(columnLabel, x);
}
@Override
public final void updateInt(int columnIndex, int x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateInt(columnIndex, x);
}
@Override
public final void updateInt(String columnLabel, int x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateInt(columnLabel, x);
}
@Override
public final void updateLong(int columnIndex, long x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateLong(columnIndex, x);
}
@Override
public final void updateLong(String columnLabel, long x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateLong(columnLabel, x);
}
@Override
public final void updateNCharacterStream(int columnIndex, Reader x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNCharacterStream(columnIndex, x);
}
@Override
public final void updateNCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNCharacterStream(columnIndex, x, length);
}
@Override
public final void updateNCharacterStream(String columnLabel, Reader x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNCharacterStream(columnLabel, x);
}
@Override
public final void updateNCharacterStream(String columnLabel, Reader x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNCharacterStream(columnLabel, x, length);
}
@Override
public final void updateNClob(int columnIndex, NClob x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNClob(columnIndex, x);
}
@Override
public final void updateNClob(int columnIndex, Reader x, long length) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNClob(columnIndex, x, length);
}
@Override
public final void updateNClob(int columnIndex, Reader x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNClob(columnIndex, x);
}
@Override
public final void updateNClob(String columnLabel, NClob x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNClob(columnLabel, x);
}
@Override
public final void updateNClob(String columnLabel, Reader x, long length) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNClob(columnLabel, x, length);
}
@Override
public final void updateNClob(String columnLabel, Reader x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNClob(columnLabel, x);
}
@Override
public final void updateNString(int columnIndex, String x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateNString(columnIndex, x);
}
@Override
public final void updateNString(String columnLabel, String x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateNString(columnLabel, x);
}
@Override
public final void updateObject(int columnIndex, Object x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateObject(columnIndex, x);
}
@Override
public final void updateObject(int columnIndex, Object x, int scaleOrLength) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateObject(columnIndex, x, scaleOrLength);
}
@Override
public final void updateObject(String columnLabel, Object x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateObject(columnLabel, x);
}
@Override
public final void updateObject(String columnLabel, Object x, int scaleOrLength) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateObject(columnLabel, x, scaleOrLength);
}
@Override
public final void updateRef(int columnIndex, Ref x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateRef(columnIndex, x);
}
@Override
public final void updateRef(String columnLabel, Ref x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateRef(columnLabel, x);
}
@Override
public final void updateRowId(int columnIndex, RowId x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateRowId(columnIndex, x);
}
@Override
public final void updateRowId(String columnLabel, RowId x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateRowId(columnLabel, x);
}
@Override
public final void updateShort(int columnIndex, short x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateShort(columnIndex, x);
}
@Override
public final void updateShort(String columnLabel, short x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateShort(columnLabel, x);
}
@Override
public final void updateSQLXML(int columnIndex, SQLXML x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateSQLXML(columnIndex, x);
}
@Override
public final void updateSQLXML(String columnLabel, SQLXML x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateSQLXML(columnLabel, x);
}
@Override
public final void updateString(int columnIndex, String x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateString(columnIndex, x);
}
@Override
public final void updateString(String columnLabel, String x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateString(columnLabel, x);
}
@Override
public final void updateTime(int columnIndex, Time x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateTime(columnIndex, x);
}
@Override
public final void updateTime(String columnLabel, Time x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateTime(columnLabel, x);
}
@Override
public final void updateTimestamp(int columnIndex, Timestamp x) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateTimestamp(columnIndex, x);
}
@Override
public final void updateTimestamp(String columnLabel, Timestamp x) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateTimestamp(columnLabel, x);
}
// ------------------------------------------------------------------------
// JDBC 4.2
// ------------------------------------------------------------------------
@Override
public void updateObject(int columnIndex, Object x, SQLType targetSqlType, int scaleOrLength) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateObject(columnIndex, x, targetSqlType, scaleOrLength);
}
@Override
public void updateObject(String columnLabel, Object x, SQLType targetSqlType, int scaleOrLength) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateObject(columnLabel, x, targetSqlType, scaleOrLength);
}
@Override
public void updateObject(int columnIndex, Object x, SQLType targetSqlType) throws SQLException {
logUpdate(columnIndex, x);
ctx.resultSet().updateObject(columnIndex, x, targetSqlType);
}
@Override
public void updateObject(String columnLabel, Object x, SQLType targetSqlType) throws SQLException {
logUpdate(columnLabel, x);
ctx.resultSet().updateObject(columnLabel, x, targetSqlType);
}
}
/**
* An iterator for records fetched by this cursor
*/
final class CursorIterator implements Iterator {
/**
* The (potentially) pre-fetched next record
*/
private R next;
/**
* Whether the underlying {@link ResultSet} has a next record. This
* boolean has three states:
*
* - null: it's not known whether there is a next record
* - true: there is a next record, and it has been pre-fetched
* - false: there aren't any next records
*
*/
private Boolean hasNext;
/**
* [#11099] Cache this instance for the entire cursor.
*/
private final CursorRecordInitialiser initialiser = new CursorRecordInitialiser(
ctx, listener,
new DefaultBindingGetResultSetContext<>(ctx, rs, 0),
fields, 0,
intern
);
@SuppressWarnings("unchecked")
private final RecordDelegate recordDelegate = Tools.newRecord(true, (Supplier) factory, ((DefaultExecuteContext) ctx).originalConfiguration());
@Override
public final boolean hasNext() {
if (hasNext == null) {
// Some databases (e.g. Redshift) do not implement JDBC's maxRows.
if (maxRows > 0 && rows >= maxRows)
return false;
next = fetchNext();
hasNext = (next != null);
}
return hasNext;
}
@Override
public final R next() {
if (!hasNext())
throw new NoSuchElementException("There are no more records to fetch from this Cursor");
R result = next;
hasNext = null;
next = null;
return result;
}
@SuppressWarnings("unchecked")
private final R fetchNext() {
AbstractRecord record = null;
try {
if (!isClosed && rs.next()) {
record = recordDelegate.operate(initialiser.reset());
rows++;
}
}
// [#3427] ControlFlowSignals must not be passed on to ExecuteListners
catch (ControlFlowSignal e) {
throw e;
}
catch (RuntimeException e) {
ctx.exception(e);
listener.exception(ctx);
throw ctx.exception();
}
catch (SQLException e) {
ctx.sqlException(e);
listener.exception(ctx);
throw ctx.exception();
}
// [#1868] [#2373] [#2385] [#8544] This calls through to
// Utils.safeClose() if necessary, lazy-terminating the ExecuteListener
// lifecycle if the result is not eager-fetched.
if (record == null && autoclosing) {
CursorImpl.this.close();
}
return (R) record;
}
@Override
public final void remove() {
throw new UnsupportedOperationException();
}
}
/**
* A utility to initialise records and transfer data in a
* {@link RecordDelegate}.
*
* While {@link CursorImpl} is strictly for blocking execution on JDBC, this
* initialiser can also be used by the {@link R2DBC} implementation.
*/
static class CursorRecordInitialiser implements ThrowingFunction {
private final ExecuteContext ctx;
private final ExecuteListener listener;
private final AbstractRow initialiserFields;
private int offset;
private final boolean[] intern;
private final DefaultBindingGetResultSetContext rsContext;
CursorRecordInitialiser(
ExecuteContext ctx,
ExecuteListener listener,
DefaultBindingGetResultSetContext rsContext,
AbstractRow initialiserFields,
int offset,
boolean[] intern
) {
this.ctx = ctx;
this.listener = listener;
this.rsContext = rsContext;
this.initialiserFields = initialiserFields;
this.offset = offset;
this.intern = intern;
}
CursorRecordInitialiser reset() {
offset = 0;
return this;
}
@Override
public AbstractRecord apply(AbstractRecord record) throws SQLException {
ctx.record(record);
listener.recordStart(ctx);
int size = initialiserFields.size();
for (int i = 0; i < size; i++)
setValue(record, initialiserFields.field(i), i);
if (intern != null)
for (int i = 0; i < intern.length; i++)
if (intern[i])
record.intern0(i);
ctx.record(record);
listener.recordEnd(ctx);
return record;
}
/**
* Utility method to prevent unnecessary unchecked conversions
*/
@SuppressWarnings("unchecked")
private final void setValue(AbstractRecord record, Field field, int index) throws SQLException {
try {
T value;
AbstractRow nested = null;
Class recordType = null;
// [#7100] TODO: This should be transparent to the CursorImpl
// RowField may have a Row[N].mapping(...) applied
Field f = uncoerce(field);
// [#13560] Queries may decide themselves to replace the
// flattening emulation by the MULTISET emulation
if (f instanceof AbstractRowAsField
&& NO_NATIVE_SUPPORT.contains(ctx.dialect())
&& !TRUE.equals(ctx.data(DATA_MULTISET_CONTENT))) {
nested = ((AbstractRowAsField) f).emulatedFields(ctx.configuration());
recordType = (Class) ((AbstractRowAsField) f).getRecordType();
}
else if (f.getDataType().isEmbeddable()) {
nested = Tools.row0(embeddedFields(f));
recordType = embeddedRecordType(f);
}
int nestedOffset = offset + index;
if (nested != null) {
CursorRecordInitialiser operation = new CursorRecordInitialiser(
ctx, listener,
rsContext,
nested, nestedOffset,
intern
);
value = (T) Tools.newRecord(true, (Class) recordType, (AbstractRow) nested, ((DefaultExecuteContext) ctx).originalConfiguration())
.operate(operation);
// [#7100] TODO: Is there a more elegant way to do this?
if (f != field)
value = ((ContextConverter) field.getConverter()).from(value, ctx.converterContext());
offset += operation.offset - nestedOffset + nested.size() - 1;
}
else {
rsContext.index(nestedOffset + 1);
rsContext.field((Field) field);
field.getBinding().get((BindingGetResultSetContext) rsContext);
value = (T) rsContext.value();
}
record.values[index] = value;
record.originals[index] = value;
}
// [#5901] Improved error logging, mostly useful when there are some data type conversion errors
catch (Exception e) {
throw new SQLException("Error while reading field: " + field + ", at JDBC index: " + (offset + index + 1), e);
}
}
}
}