| /* |
| * 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.calcite.avatica.noop; |
| |
| import java.sql.Array; |
| import java.sql.Blob; |
| import java.sql.CallableStatement; |
| import java.sql.Clob; |
| import java.sql.Connection; |
| import java.sql.DatabaseMetaData; |
| import java.sql.NClob; |
| import java.sql.PreparedStatement; |
| import java.sql.SQLClientInfoException; |
| import java.sql.SQLException; |
| import java.sql.SQLWarning; |
| import java.sql.SQLXML; |
| import java.sql.Savepoint; |
| import java.sql.Statement; |
| import java.sql.Struct; |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.concurrent.Executor; |
| |
| /** |
| * A {@link Connection} implementation which does nothing. |
| */ |
| public class AvaticaNoopConnection implements Connection { |
| |
| private static final AvaticaNoopConnection INSTANCE = new AvaticaNoopConnection(); |
| |
| public static AvaticaNoopConnection getInstance() { |
| return INSTANCE; |
| } |
| |
| private AvaticaNoopConnection() {} |
| |
| private UnsupportedOperationException unsupported() { |
| return new UnsupportedOperationException("Unsupported"); |
| } |
| |
| @Override public <T> T unwrap(Class<T> iface) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public boolean isWrapperFor(Class<?> iface) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Statement createStatement() throws SQLException { |
| return AvaticaNoopStatement.getInstance(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql) throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public CallableStatement prepareCall(String sql) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public String nativeSQL(String sql) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public void setAutoCommit(boolean autoCommit) throws SQLException {} |
| |
| @Override public boolean getAutoCommit() throws SQLException { |
| return false; |
| } |
| |
| @Override public void commit() throws SQLException {} |
| |
| @Override public void rollback() throws SQLException {} |
| |
| @Override public void close() throws SQLException {} |
| |
| @Override public boolean isClosed() throws SQLException { |
| return true; |
| } |
| |
| @Override public DatabaseMetaData getMetaData() throws SQLException { |
| return AvaticaNoopDatabaseMetaData.getInstance(); |
| } |
| |
| @Override public void setReadOnly(boolean readOnly) throws SQLException {} |
| |
| @Override public boolean isReadOnly() throws SQLException { |
| return false; |
| } |
| |
| @Override public void setCatalog(String catalog) throws SQLException {} |
| |
| @Override public String getCatalog() throws SQLException { |
| return null; |
| } |
| |
| @Override public void setTransactionIsolation(int level) throws SQLException {} |
| |
| @Override public int getTransactionIsolation() throws SQLException { |
| return 0; |
| } |
| |
| @Override public SQLWarning getWarnings() throws SQLException { |
| return null; |
| } |
| |
| @Override public void clearWarnings() throws SQLException {} |
| |
| @Override public Statement createStatement(int resultSetType, int resultSetConcurrency) |
| throws SQLException { |
| return AvaticaNoopStatement.getInstance(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql, int resultSetType, |
| int resultSetConcurrency) throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public CallableStatement prepareCall(String sql, int resultSetType, |
| int resultSetConcurrency) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Map<String, Class<?>> getTypeMap() throws SQLException { |
| return Collections.emptyMap(); |
| } |
| |
| @Override public void setTypeMap(Map<String, Class<?>> map) throws SQLException {} |
| |
| @Override public void setHoldability(int holdability) throws SQLException {} |
| |
| @Override public int getHoldability() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Savepoint setSavepoint() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Savepoint setSavepoint(String name) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public void rollback(Savepoint savepoint) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public void releaseSavepoint(Savepoint savepoint) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Statement createStatement(int resultSetType, int resultSetConcurrency, |
| int resultSetHoldability) throws SQLException { |
| return AvaticaNoopStatement.getInstance(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql, int resultSetType, |
| int resultSetConcurrency, int resultSetHoldability) throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public CallableStatement prepareCall(String sql, int resultSetType, |
| int resultSetConcurrency, int resultSetHoldability) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) |
| throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql, int[] columnIndexes) |
| throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public PreparedStatement prepareStatement(String sql, String[] columnNames) |
| throws SQLException { |
| return AvaticaNoopPreparedStatement.getInstance(); |
| } |
| |
| @Override public Clob createClob() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Blob createBlob() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public NClob createNClob() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public SQLXML createSQLXML() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public boolean isValid(int timeout) throws SQLException { |
| return true; |
| } |
| |
| @Override public void setClientInfo(String name, String value) throws SQLClientInfoException {} |
| |
| @Override public void setClientInfo(Properties properties) throws SQLClientInfoException {} |
| |
| @Override public String getClientInfo(String name) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Properties getClientInfo() throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Array createArrayOf(String typeName, Object[] elements) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public Struct createStruct(String typeName, Object[] attributes) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public void setSchema(String schema) throws SQLException {} |
| |
| @Override public String getSchema() throws SQLException { |
| return null; |
| } |
| |
| @Override public void abort(Executor executor) throws SQLException { |
| throw unsupported(); |
| } |
| |
| @Override public void setNetworkTimeout(Executor executor, int milliseconds) |
| throws SQLException {} |
| |
| @Override public int getNetworkTimeout() throws SQLException { |
| throw unsupported(); |
| } |
| |
| } |
| |
| // End AvaticaNoopConnection.java |