| /* |
| * 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; |
| |
| import org.apache.calcite.avatica.util.ByteString; |
| |
| 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.NClob; |
| import java.sql.PreparedStatement; |
| import java.sql.Ref; |
| import java.sql.RowId; |
| import java.sql.Struct; |
| import java.sql.Time; |
| import java.sql.Timestamp; |
| import java.sql.Types; |
| import java.util.AbstractMap; |
| import java.util.ArrayList; |
| import java.util.Calendar; |
| import java.util.Collection; |
| import java.util.EnumSet; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** Extends the information in {@link java.sql.Types}. |
| * |
| * <p>The information in the following conversions tables |
| * (from the JDBC 4.1 specification) is held in members of this class. |
| * |
| * <p>Table B-1: JDBC Types Mapped to Java Types |
| * |
| * <pre> |
| * JDBC Type Java Type |
| * ============= ========================= |
| * CHAR String |
| * VARCHAR String |
| * LONGVARCHAR String |
| * NUMERIC java.math.BigDecimal |
| * DECIMAL java.math.BigDecimal |
| * BIT boolean |
| * BOOLEAN boolean |
| * TINYINT byte |
| * SMALLINT short |
| * INTEGER int |
| * BIGINT long |
| * REAL float |
| * FLOAT double |
| * DOUBLE double |
| * BINARY byte[] |
| * VARBINARY byte[] |
| * LONGVARBINARY byte[] |
| * DATE java.sql.Date |
| * TIME java.sql.Time |
| * TIMESTAMP java.sql.Timestamp |
| * CLOB java.sql.Clob |
| * BLOB java.sql.Blob |
| * ARRAY java.sql.Array |
| * DISTINCT mapping of underlying type |
| * STRUCT java.sql.Struct |
| * REF java.sql.Ref |
| * DATALINK java.net.URL |
| * JAVA_OBJECT underlying Java class |
| * ROWID java.sql.RowId |
| * NCHAR String |
| * NVARCHAR String |
| * LONGNVARCHAR String |
| * NCLOB java.sql.NClob |
| * SQLXML java.sql.SQLXML |
| * </pre> |
| * |
| * <p>Table B-2: Standard Mapping from Java Types to JDBC Types |
| * |
| * <pre> |
| * Java Type JDBC Type |
| * ==================== ============================================== |
| * String CHAR, VARCHAR, LONGVARCHAR, NCHAR, NVARCHAR or |
| * LONGNVARCHAR |
| * java.math.BigDecimal NUMERIC |
| * boolean BIT or BOOLEAN |
| * byte TINYINT |
| * short SMALLINT |
| * int INTEGER |
| * long BIGINT |
| * float REAL |
| * double DOUBLE |
| * byte[] BINARY, VARBINARY, or LONGVARBINARY |
| * java.sql.Date DATE |
| * java.sql.Time TIME |
| * java.sql.Timestamp TIMESTAMP |
| * java.sql.Clob CLOB |
| * java.sql.Blob BLOB |
| * java.sql.Array ARRAY |
| * java.sql.Struct STRUCT |
| * java.sql.Ref REF |
| * java.net.URL DATALINK |
| * Java class JAVA_OBJECT |
| * java.sql.RowId ROWID |
| * java.sql.NClob NCLOB |
| * java.sql.SQLXML SQLXML |
| * </pre> |
| * |
| * <p>TABLE B-3: Mapping from JDBC Types to Java Object Types |
| * |
| * <pre> |
| * JDBC Type Java Object Type |
| * ============= ====================== |
| * CHAR String |
| * VARCHAR String |
| * LONGVARCHAR String |
| * NUMERIC java.math.BigDecimal |
| * DECIMAL java.math.BigDecimal |
| * BIT Boolean |
| * BOOLEAN Boolean |
| * TINYINT Integer |
| * SMALLINT Integer |
| * INTEGER Integer |
| * BIGINT Long |
| * REAL Float |
| * FLOAT Double |
| * DOUBLE Double |
| * BINARY byte[] |
| * VARBINARY byte[] |
| * LONGVARBINARY byte[] |
| * DATE java.sql.Date |
| * TIME java.sql.Time |
| * TIMESTAMP java.sql.Timestamp |
| * DISTINCT Object type of underlying type |
| * CLOB java.sql.Clob |
| * BLOB java.sql.Blob |
| * ARRAY java.sql.Array |
| * STRUCT java.sql.Struct or java.sql.SQLData |
| * REF java.sql.Ref |
| * DATALINK java.net.URL |
| * JAVA_OBJECT underlying Java class |
| * ROWID java.sql.RowId |
| * NCHAR String |
| * NVARCHAR String |
| * LONGNVARCHAR String |
| * NCLOB java.sql.NClob |
| * SQLXML java.sql.SQLXML |
| * </pre> |
| * |
| * <p>TABLE B-4: Mapping from Java Object Types to JDBC Types |
| * |
| * <pre> |
| * Java Object Type JDBC Type |
| * ==================== =========================================== |
| * String CHAR, VARCHAR, LONGVARCHAR, NCHAR, NVARCHAR |
| * or LONGNVARCHAR |
| * java.math.BigDecimal NUMERIC |
| * Boolean BIT or BOOLEAN |
| * Byte TINYINT |
| * Short SMALLINT |
| * Integer INTEGER |
| * Long BIGINT |
| * Float REAL |
| * Double DOUBLE |
| * byte[] BINARY, VARBINARY, or LONGVARBINARY |
| * java.math.BigInteger BIGINT |
| * java.sql.Date DATE |
| * java.sql.Time TIME |
| * java.sql.Timestamp TIMESTAMP |
| * java.sql.Clob CLOB |
| * java.sql.Blob BLOB |
| * java.sql.Array ARRAY |
| * java.sql.Struct STRUCT |
| * java.sql.Ref REF |
| * java.net.URL DATALINK |
| * Java class JAVA_OBJECT |
| * java.sql.RowId ROWID |
| * java.sql.NClob NCLOB |
| * java.sql.SQLXML SQLXML |
| * java.util.Calendar TIMESTAMP |
| * java.util.Date TIMESTAMP |
| * </pre> |
| * |
| * <p><a id="B5">TABLE B-5</a>: Conversions performed by {@code setObject} and |
| * {@code setNull} between Java object types and target JDBC types |
| * <!-- |
| * CHECKSTYLE: OFF |
| * --> |
| * <pre> |
| * T S I B R F D D N B B C V L B V L D T T A B C S R D J R N N L N S |
| * I M N I E L O E U I O H A O I A O A I I R L L T E A A O C V O C Q |
| * N A T G A O U C M T O A R N N R N T M M R O O R F T V W H A N L L |
| * Y L E I L A B I E L R C G A B G E E E A B B U A A I A R G O X |
| * I L G N T L M R E H V R I V E S Y C L _ D R C N B M |
| * N I E T E A I A A A Y N A T T I O H V L |
| * T N R L C N R R A R A N B A A |
| * T C R B M K J R R |
| * H Y I P C |
| * Java type |
| * ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = |
| * String x x x x x x x x x x x x x x x x x x x x . . . . . . . . x x x . . |
| * java.math.BigDecimal x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Boolean x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Byte x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Short x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Integer x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Long x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Float x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * Double x x x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * byte[] . . . . . . . . . . . . . . x x x . . . . . . . . . . . . . . . . |
| * java.math.BigInteger . . . x . . . . . . . x x x . . . . . . . . . . . . . . . . . . . |
| * java.sql.Date . . . . . . . . . . . x x x . . . x . x . . . . . . . . . . . . . |
| * java.sql.Time . . . . . . . . . . . x x x . . . . x x . . . . . . . . . . . . . |
| * java.sql.Timestamp . . . . . . . . . . . x x x . . . x x x . . . . . . . . . . . . . |
| * java.sql.Array . . . . . . . . . . . . . . . . . . . . x . . . . . . . . . . . . |
| * java.sql.Blob . . . . . . . . . . . . . . . . . . . . . x . . . . . . . . . . . |
| * java.sql.Clob . . . . . . . . . . . . . . . . . . . . . . x . . . . . . . . . . |
| * java.sql.Struct . . . . . . . . . . . . . . . . . . . . . . . x . . . . . . . . . |
| * java.sql.Ref . . . . . . . . . . . . . . . . . . . . . . . . x . . . . . . . . |
| * java.net.URL . . . . . . . . . . . . . . . . . . . . . . . . . x . . . . . . . |
| * Java class . . . . . . . . . . . . . . . . . . . . . . . . . . x . . . . . . |
| * java.sql.Rowid . . . . . . . . . . . . . . . . . . . . . . . . . . . x . . . . . |
| * java.sql.NClob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x . |
| * java.sql.SQLXML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x |
| * java.util.Calendar . . . . . . . . . . . x x x . . . x x x . . . . . . . . . . . . . |
| * java.util.Date . . . . . . . . . . . x x x . . . x x x . . . . . . . . . . . . . |
| * </pre> |
| * <!-- |
| * CHECKSTYLE: ON |
| * --> |
| * |
| * <p><a id="B6">TABLE B-6</a>: Use of {@code ResultSet} getter methods to |
| * retrieve JDBC data types |
| * <!-- |
| * CHECKSTYLE: OFF |
| * --> |
| * <pre> |
| * T S I B R F D D N B B C V L B V L D T T C B A R D S J R N N L N S |
| * I M N I E L O E U I O H A O I A O A I I L L R E A T A O C V O C Q |
| * N A T G A O U C M T O A R N N R N T M M O O R F T R V W H A N L L |
| * Y L E I L A B I E L R C G A B G E E E B B A A U A I A R G O X |
| * I L G N T L M R E H V R I V E S Y L C _ D R C N B M |
| * N I E T E A I A A A Y N A T I T O H V L |
| * T N R L C N R R A R A N B A A |
| * T C R B M K J R R |
| * H Y I P C |
| * Java type |
| * ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = |
| * getByte X x x x x x x x x x x x x . . . . . . . . . . . . . . x . . . . . |
| * getShort x X x x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * getInt x x X x x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * getLong x x x X x x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * getFloat x x x x X x x x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * getDouble x x x x x X X x x x x x x . . . . . . . . . . . . . . . . . . . . |
| * getBigDecimal x x x x x x x X X x x x x . . . . . . . . . . . . . . . . . . . . |
| * getBoolean x x x x x x x x x X x x x . . . . . . . . . . . . . . . . . . . . |
| * getString x x x x x x x x x x x X X x x x x x x x . . . . x . . . x x x . . |
| * getNString x x x x x x x x x x x x x x x x x x x x . . . . x . . . X X x . . |
| * getBytes . . . . . . . . . . . . . . X X x . . . . . . . . . . . . . . . . |
| * getDate . . . . . . . . . . . x x x . . . X . x . . . . . . . . . . . . . |
| * getTime . . . . . . . . . . . x x x . . . . X x . . . . . . . . . . . . . |
| * getTimestamp . . . . . . . . . . . x x x . . . x x X . . . . . . . . . . . x . |
| * getAsciiStream . . . . . . . . . . . x x X x x x . . . x . . . . . . . . . . . x |
| * getBinaryStream . . . . . . . . . . . . . . x x X . . . . x . . . . . . . . . x x |
| * getCharacterStream . . . . . . . . . . . x x X x x x . . . x . . . . . . . x x x x x |
| * getNCharacterStream . . . . . . . . . . . x x x x x x . . . x . . . . . . . x x X x x |
| * getClob . . . . . . . . . . . . . . . . . . . . X . . . . . . . . . . x . |
| * getNClob . . . . . . . . . . . . . . . . . . . . x . . . . . . . . . . X . |
| * getBlob . . . . . . . . . . . . . . . . . . . . . X . . . . . . . . . . . |
| * getArray . . . . . . . . . . . . . . . . . . . . . . X . . . . . . . . . . |
| * getRef . . . . . . . . . . . . . . . . . . . . . . . X . . . . . . . . . |
| * getURL . . . . . . . . . . . . . . . . . . . . . . . . X . . . . . . . . |
| * getObject x x x x x x x x x x x x x x x x x x x x x x x x x X X x x x x x x |
| * getRowId . . . . . . . . . . . . . . . . . . . . . . . . . . . X . . . . . |
| * getSQLXML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X |
| * </pre> |
| * <!-- |
| * CHECKSTYLE: ON |
| * --> |
| */ |
| public enum SqlType { |
| BIT(Types.BIT, boolean.class), |
| BOOLEAN(Types.BOOLEAN, boolean.class), |
| TINYINT(Types.TINYINT, byte.class), |
| SMALLINT(Types.SMALLINT, short.class), |
| INTEGER(Types.INTEGER, int.class), |
| BIGINT(Types.BIGINT, long.class), |
| NUMERIC(Types.NUMERIC, BigDecimal.class), |
| DECIMAL(Types.DECIMAL, BigDecimal.class), |
| FLOAT(Types.FLOAT, double.class), |
| REAL(Types.REAL, float.class), |
| DOUBLE(Types.DOUBLE, double.class), |
| DATE(Types.DATE, java.sql.Date.class, int.class), |
| TIME(Types.TIME, Time.class, int.class), |
| TIMESTAMP(Types.TIMESTAMP, Timestamp.class, long.class), |
| INTERVAL_YEAR_MONTH(Types.OTHER, Boolean.class), |
| INTERVAL_DAY_TIME(Types.OTHER, Boolean.class), |
| CHAR(Types.CHAR, String.class), |
| VARCHAR(Types.VARCHAR, String.class), |
| LONGVARCHAR(Types.LONGVARCHAR, String.class), |
| BINARY(Types.BINARY, byte[].class, ByteString.class, String.class), |
| VARBINARY(Types.VARBINARY, byte[].class, ByteString.class, String.class), |
| LONGVARBINARY(Types.LONGVARBINARY, byte[].class, ByteString.class, |
| String.class), |
| NULL(Types.NULL, Void.class), |
| ANY(Types.JAVA_OBJECT, Object.class), |
| SYMBOL(Types.OTHER, Object.class), |
| MULTISET(Types.ARRAY, List.class), |
| ARRAY(Types.ARRAY, Array.class), |
| BLOB(Types.BLOB, Blob.class), |
| CLOB(Types.CLOB, Clob.class), |
| SQLXML(Types.SQLXML, java.sql.SQLXML.class), |
| MAP(Types.OTHER, Map.class), |
| DISTINCT(Types.DISTINCT, Object.class), |
| STRUCT(Types.STRUCT, Struct.class), |
| REF(Types.REF, Ref.class), |
| DATALINK(Types.DATALINK, URL.class), |
| JAVA_OBJECT(Types.JAVA_OBJECT, Object.class), |
| ROWID(Types.ROWID, RowId.class), |
| NCHAR(Types.NCHAR, String.class), |
| NVARCHAR(Types.NVARCHAR, String.class), |
| LONGNVARCHAR(Types.LONGNVARCHAR, String.class), |
| NCLOB(Types.NCLOB, NClob.class), |
| ROW(Types.STRUCT, Object.class), |
| OTHER(Types.OTHER, Object.class), |
| CURSOR(2012, Object.class), |
| TIME_WITH_TIMEZONE(2013, String.class), |
| TIMESTAMP_WITH_TIMEZONE(2014, String.class), |
| COLUMN_LIST(Types.OTHER + 2, Object.class); |
| |
| /** Type id as appears in {@link java.sql.Types}, |
| * e.g. {@link java.sql.Types#INTEGER}. */ |
| public final int id; |
| |
| /** Default Java type for this SQL type, as described in table B-1. */ |
| public final Class clazz; |
| |
| /** Class used internally in Calcite to represent instances of this type. */ |
| public final Class internal; |
| |
| /** Class used to serialize values of this type as JSON. */ |
| public final Class serial; |
| |
| private static final Map<Integer, SqlType> BY_ID = new HashMap<>(); |
| static { |
| for (SqlType sqlType : values()) { |
| BY_ID.put(sqlType.id, sqlType); |
| } |
| } |
| |
| SqlType(int id, Class clazz, Class internal, Class serial) { |
| this.id = id; |
| this.clazz = clazz; |
| this.internal = internal; |
| this.serial = serial; |
| } |
| |
| SqlType(int id, Class clazz, Class internal) { |
| this(id, clazz, internal, internal); |
| } |
| |
| SqlType(int id, Class clazz) { |
| this(id, clazz, clazz, clazz); |
| } |
| |
| public static SqlType valueOf(int type) { |
| final SqlType sqlType = BY_ID.get(type); |
| if (sqlType == null) { |
| throw new IllegalArgumentException("Unknown SQL type " + type); |
| } |
| return sqlType; |
| } |
| |
| /** Returns the boxed type. */ |
| public Class boxedClass() { |
| return AvaticaUtils.box(clazz); |
| } |
| |
| /** Returns the entries in JDBC table B-5. */ |
| public static Iterable<Map.Entry<Class, SqlType>> getSetConversions() { |
| final ArrayList<Map.Entry<Class, SqlType>> list = new ArrayList<>(); |
| for (Map.Entry<Class, EnumSet<SqlType>> entry : SET_LIST.entrySet()) { |
| for (SqlType sqlType : entry.getValue()) { |
| list.add(new AbstractMap.SimpleEntry<>(entry.getKey(), sqlType)); |
| } |
| } |
| return list; |
| } |
| |
| public static final Map<Class, EnumSet<SqlType>> SET_LIST; |
| public static final Map<Method, EnumSet<SqlType>> GET_LIST; |
| |
| static { |
| SET_LIST = new HashMap<>(); |
| GET_LIST = new HashMap<>(); |
| |
| EnumSet<SqlType> numericTypes = EnumSet.of(TINYINT, SMALLINT, INTEGER, |
| BIGINT, REAL, FLOAT, DOUBLE, DECIMAL, NUMERIC, BIT, BOOLEAN); |
| Class[] numericClasses = { |
| BigDecimal.class, Boolean.class, Byte.class, Short.class, Integer.class, |
| Long.class, Float.class, Double.class |
| }; |
| EnumSet<SqlType> charTypes = EnumSet.of(CHAR, VARCHAR, LONGVARCHAR); |
| EnumSet<SqlType> ncharTypes = EnumSet.of(NCHAR, NVARCHAR, LONGNVARCHAR); |
| EnumSet<SqlType> binaryTypes = EnumSet.of(BINARY, VARBINARY, LONGVARBINARY); |
| EnumSet<SqlType> dateTimeTypes = EnumSet.of(DATE, TIME, TIMESTAMP); |
| final EnumSet<SqlType> numericCharTypes = concat(numericTypes, charTypes); |
| SET_LIST.put(String.class, |
| concat(numericCharTypes, binaryTypes, dateTimeTypes, ncharTypes)); |
| for (Class clazz : numericClasses) { |
| SET_LIST.put(clazz, numericCharTypes); |
| } |
| SET_LIST.put(byte[].class, binaryTypes); |
| SET_LIST.put(BigInteger.class, |
| EnumSet.of(BIGINT, CHAR, VARCHAR, LONGVARCHAR)); |
| SET_LIST.put(java.sql.Date.class, |
| concat(charTypes, EnumSet.of(DATE, TIMESTAMP))); |
| SET_LIST.put(Time.class, |
| concat(charTypes, EnumSet.of(TIME, TIMESTAMP))); |
| SET_LIST.put(Timestamp.class, |
| concat(charTypes, EnumSet.of(DATE, TIME, TIMESTAMP))); |
| SET_LIST.put(Array.class, EnumSet.of(ARRAY)); |
| SET_LIST.put(Blob.class, EnumSet.of(BLOB)); |
| SET_LIST.put(Clob.class, EnumSet.of(CLOB)); |
| SET_LIST.put(Struct.class, EnumSet.of(STRUCT)); |
| SET_LIST.put(Ref.class, EnumSet.of(REF)); |
| SET_LIST.put(URL.class, EnumSet.of(DATALINK)); |
| SET_LIST.put(Class.class, EnumSet.of(JAVA_OBJECT)); |
| SET_LIST.put(RowId.class, EnumSet.of(ROWID)); |
| SET_LIST.put(NClob.class, EnumSet.of(NCLOB)); |
| SET_LIST.put(java.sql.SQLXML.class, EnumSet.of(SQLXML)); |
| SET_LIST.put(Calendar.class, |
| concat(charTypes, EnumSet.of(DATE, TIME, TIMESTAMP))); |
| SET_LIST.put(java.util.Date.class, |
| concat(charTypes, EnumSet.of(DATE, TIME, TIMESTAMP))); |
| |
| EnumSet<Method> numericMethods = |
| EnumSet.of(Method.GET_BYTE, Method.GET_SHORT, Method.GET_INT, |
| Method.GET_LONG, Method.GET_FLOAT, Method.GET_DOUBLE, |
| Method.GET_BIG_DECIMAL, Method.GET_BOOLEAN); |
| for (Method method : numericMethods) { |
| GET_LIST.put(method, numericCharTypes); |
| } |
| GET_LIST.put(Method.GET_BYTE, EnumSet.of(ROWID)); |
| for (Method method : EnumSet.of(Method.GET_STRING, Method.GET_N_STRING)) { |
| GET_LIST.put(method, |
| concat(numericCharTypes, binaryTypes, dateTimeTypes, |
| EnumSet.of(DATALINK), ncharTypes)); |
| } |
| GET_LIST.put(Method.GET_BYTES, binaryTypes); |
| GET_LIST.put(Method.GET_DATE, |
| concat(charTypes, EnumSet.of(DATE, TIMESTAMP))); |
| GET_LIST.put(Method.GET_TIME, |
| concat(charTypes, EnumSet.of(TIME, TIMESTAMP))); |
| GET_LIST.put(Method.GET_TIMESTAMP, |
| concat(charTypes, EnumSet.of(DATE, TIME, TIMESTAMP))); |
| GET_LIST.put(Method.GET_ASCII_STREAM, |
| concat(charTypes, binaryTypes, EnumSet.of(CLOB, NCLOB))); |
| GET_LIST.put(Method.GET_BINARY_STREAM, |
| concat(binaryTypes, EnumSet.of(BLOB, SQLXML))); |
| GET_LIST.put(Method.GET_CHARACTER_STREAM, |
| concat(charTypes, binaryTypes, ncharTypes, |
| EnumSet.of(CLOB, NCLOB, SQLXML))); |
| GET_LIST.put(Method.GET_N_CHARACTER_STREAM, |
| concat( |
| charTypes, binaryTypes, ncharTypes, EnumSet.of(CLOB, NCLOB, SQLXML))); |
| GET_LIST.put(Method.GET_CLOB, EnumSet.of(CLOB, NCLOB)); |
| GET_LIST.put(Method.GET_N_CLOB, EnumSet.of(CLOB, NCLOB)); |
| GET_LIST.put(Method.GET_BLOB, EnumSet.of(BLOB)); |
| GET_LIST.put(Method.GET_ARRAY, EnumSet.of(ARRAY)); |
| GET_LIST.put(Method.GET_REF, EnumSet.of(REF)); |
| GET_LIST.put(Method.GET_BLOB, EnumSet.of(BLOB)); |
| GET_LIST.put(Method.GET_URL, EnumSet.of(DATALINK)); |
| GET_LIST.put(Method.GET_OBJECT, EnumSet.allOf(SqlType.class)); |
| GET_LIST.put(Method.GET_ROW_ID, EnumSet.of(ROWID)); |
| GET_LIST.put(Method.GET_SQLXML, EnumSet.of(SQLXML)); |
| } |
| |
| @SafeVarargs |
| private static <E extends Enum<E>> EnumSet<E> concat(Collection<E>... ess) { |
| final List<E> list = new ArrayList<>(); |
| for (Collection<E> es : ess) { |
| list.addAll(es); |
| } |
| return EnumSet.copyOf(list); |
| } |
| |
| /** Returns whether {@link java.sql.PreparedStatement#setObject} and |
| * {@link PreparedStatement#setNull} can assign a value of a particular class |
| * to a column of a particular SQL type. |
| * |
| * <p>The JDBC standard describes the mapping in table <a href="#B5">B-5</a>. |
| */ |
| public static boolean canSet(Class aClass, SqlType sqlType) { |
| final EnumSet<SqlType> sqlTypes = SET_LIST.get(aClass); |
| return sqlTypes != null && sqlTypes.contains(sqlType); |
| } |
| |
| /** Returns whether {@link java.sql.ResultSet#getInt(int)} and similar methods |
| * can convert a value to a particular SQL type. |
| * |
| * <p>The JDBC standard describes the mapping in table <a href="#B6">B-6</a>. |
| */ |
| public static boolean canGet(Method method, SqlType sqlType) { |
| final EnumSet<SqlType> sqlTypes = GET_LIST.get(method); |
| return sqlTypes != null && sqlTypes.contains(sqlType); |
| } |
| |
| /** Getter methods in {@link java.sql.ResultSet}. */ |
| public enum Method { |
| GET_BYTE("getByte"), |
| GET_SHORT("getShort"), |
| GET_INT("getInt"), |
| GET_LONG("getLong"), |
| GET_FLOAT("getFloat"), |
| GET_DOUBLE("getDouble"), |
| GET_BIG_DECIMAL("getBigDecimal"), |
| GET_BOOLEAN("getBoolean"), |
| GET_STRING("getString"), |
| GET_N_STRING("getNString"), |
| GET_BYTES("getBytes"), |
| GET_DATE("getDate"), |
| GET_TIME("getTime"), |
| GET_TIMESTAMP("getTimestamp"), |
| GET_ASCII_STREAM("getAsciiStream"), |
| GET_BINARY_STREAM("getBinaryStream"), |
| GET_CHARACTER_STREAM("getCharacterStream"), |
| GET_N_CHARACTER_STREAM("getNCharacterStream"), |
| GET_CLOB("getClob"), |
| GET_N_CLOB("getNClob"), |
| GET_BLOB("getBlob"), |
| GET_ARRAY("getArray"), |
| GET_REF("getRef"), |
| GET_URL("getURL"), |
| GET_OBJECT("getObject"), |
| GET_ROW_ID("getRowId"), |
| GET_SQLXML("getSQLXML"); |
| |
| public final String methodName; |
| |
| Method(String methodName) { |
| this.methodName = methodName; |
| } |
| } |
| } |
| |
| // End SqlType.java |
