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  3. 为什么Eclipse为什么建议“对象”作为数据类型“文本”的默认映射类型？
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为什么Eclipse为什么建议“对象”作为数据类型“文本”的默认映射类型？

mysql

当使用Eclipse从表中生成JPA实体时（对于Java EE Developers，它Object是Juno
4.2），它建议作为我设置为的属性的默认映射类型Text。
这很烦人，因为我必须将它们全部String手动设置。
有人遇到过这种问题并且知道该怎么办吗？这是错误吗？Eclipse Indigo的行为并非如此。

这是/runtime/vendors/MySql_5.1/MySql_5.1.xmi来自org.eclipse.datatools.enablement.mysql.dbdefinition_1.0.4.v201109022331.jar：（但根据此文件Text应映射到此文件，String必须是错误的文件-
但是如何找出正确的文件？）

<?xml version="1.0" encoding="ASCII"?>
<DBDefinition:DatabaseVendorDefinition xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:DBDefinition="http:///org/eclipse/datatools/modelbase/dbdefinition/dbdefinition.ecore" vendor="MySql" version="5.1" maximumIdentifierLength="64" joinSupported="true" tablespacesSupported="false" maximumCommentLength="60" schemaSupported="false" aliasSupported="true" SQLStatementSupported="true">
  <predefinedDataTypeDefinitions xmi:id="BIT_1" keyConstraintSupported="true"
maximumValue="1" minimumValue="0" primitiveType="SMALLINT" jdbcEnumType="-6"
javaClassName="byte">
    <defaultValueTypes>0</defaultValueTypes>
    <name>BIT</name>
    <name>BOOL</name>
    <name>BOOLEAN</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="TINYINT_UNSIGNED"
keyConstraintSupported="true" maximumValue="255" minimumValue="0"
primitiveType="SMALLINT" jdbcEnumType="-6" javaClassName="byte">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TINYINT UNSIGNED</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="SMALLINT_UNSIGNED"
keyConstraintSupported="true" maximumValue="65535" minimumValue="0"
primitiveType="SMALLINT" jdbcEnumType="5" javaClassName="int">
    <defaultValueTypes>0</defaultValueTypes>
    <name>SMALLINT UNSIGNED</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="MEDIUMINT_UNSIGNED"
keyConstraintSupported="true" maximumValue="16777215" minimumValue="0"
primitiveType="SMALLINT" jdbcEnumType="4" javaClassName="int">
    <defaultValueTypes>0</defaultValueTypes>
    <name>MEDIUMINT UNSIGNED</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="INTEGER_UNSIGNED"
keyConstraintSupported="true" maximumValue="4294967295" minimumValue="0"
primitiveType="INTEGER" jdbcEnumType="4" javaClassName="int">
    <defaultValueTypes>0</defaultValueTypes>
    <name>INTEGER UNSIGNED</name>
    <name>INT UNSIGNED</name>    
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BIGINT_UNSIGNED"
keyConstraintSupported="true" identitySupported="true" primitiveType="BIGINT"
jdbcEnumType="-5" javaClassName="java.math.BigInteger">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>BIGINT UNSIGNED</name>
    <name>SERIAL</name>    
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="REAL_UNSIGNED"
keyConstraintSupported="true" primitiveType="REAL" jdbcEnumType="7"
javaClassName="float">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>REAL UNSIGNED</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DOUBLE_UNSIGNED_PRECISION"
keyConstraintSupported="true" primitiveType="DOUBLE_PRECISION" jdbcEnumType="8"
javaClassName="double">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DOUBLE UNSIGNED</name>
    <name>DOUBLE UNSIGNED PRECISION</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="FLOAT_UNSIGNED"
keyConstraintSupported="true" primitiveType="FLOAT" jdbcEnumType="6"
javaClassName="float">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>FLOAT UNSIGNED</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DECIMAL_UNSIGNED"
scaleSupported="true" precisionSupported="true" maximumPrecision="64"
keyConstraintSupported="true" primitiveType="DECIMAL" jdbcEnumType="3"
javaClassName="java.math.BigDecimal">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DECIMAL UNSIGNED</name>
    <name>DEC UNSIGNED</name>
  </predefinedDataTypeDefinitions>
    <predefinedDataTypeDefinitions xmi:id="SMALLINT_2" keyConstraintSupported="true" maximumValue="127" minimumValue="-128" primitiveType="SMALLINT" jdbcEnumType="-6" javaClassName="byte">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TINYINT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="SMALLINT_1" keyConstraintSupported="true" maximumValue="32767" minimumValue="-32768" primitiveType="SMALLINT" jdbcEnumType="5" javaClassName="short">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>SMALLINT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="INTEGER_2" keyConstraintSupported="true" maximumValue="8388607" minimumValue="-8388608" primitiveType="INTEGER" jdbcEnumType="4" javaClassName="int">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>MEDIUMINT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="INTEGER_1" keyConstraintSupported="true" identitySupported="true" maximumValue="2147483647" minimumValue="-2147483648" primitiveType="INTEGER" jdbcEnumType="4" javaClassName="int">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>INT</name>
    <name>INTEGER</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BIGINT_1" keyConstraintSupported="true" identitySupported="true" primitiveType="BIGINT" jdbcEnumType="-5" javaClassName="java.math.BigInteger">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>BIGINT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="REAL_1" keyConstraintSupported="true" primitiveType="REAL" jdbcEnumType="7" javaClassName="float">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>REAL</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DOUBLE_PRECISION_1" keyConstraintSupported="true" primitiveType="DOUBLE_PRECISION" jdbcEnumType="8" javaClassName="double">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DOUBLE</name>
    <name>DOUBLE PRECISION</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="FLOAT_1" keyConstraintSupported="true" primitiveType="FLOAT" jdbcEnumType="6" javaClassName="float">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>FLOAT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DECIMAL_1" scaleSupported="true" precisionSupported="true" maximumPrecision="64" keyConstraintSupported="true" primitiveType="DECIMAL" jdbcEnumType="3" javaClassName="java.math.BigDecimal">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DECIMAL</name>
    <name>DEC</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="NUMERIC_1" scaleSupported="true" precisionSupported="true" maximumPrecision="64" keyConstraintSupported="true" primitiveType="NUMERIC" jdbcEnumType="2" javaClassName="java.math.BigDecimal">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>NUMERIC</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DATE_1" keyConstraintSupported="true" primitiveType="DATE" jdbcEnumType="91" javaClassName="java.sql.Date">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DATE</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="TIME_1" keyConstraintSupported="true" primitiveType="TIME" jdbcEnumType="92" javaClassName="java.sql.Time">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TIME</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="TIMESTAMP_1" keyConstraintSupported="true" primitiveType="TIMESTAMP" jdbcEnumType="93" javaClassName="java.sql.Timestamp">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TIMESTAMP</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="TIMESTAMP_2" keyConstraintSupported="true" primitiveType="TIMESTAMP" jdbcEnumType="93" javaClassName="java.util.Date">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>DATETIME</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_1" lengthSupported="true" keyConstraintSupported="true" maximumLength="255" jdbcEnumType="1" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <defaultValueTypes>CURRENT_USER</defaultValueTypes>
    <name>CHAR</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_VARYING_1" lengthSupported="true" keyConstraintSupported="true" maximumLength="255" primitiveType="CHARACTER_VARYING" jdbcEnumType="12" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <defaultValueTypes>CURRENT_USER</defaultValueTypes>
    <name>VARCHAR</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_LARGE_OBJECT_1" defaultSupported="false" maximumLength="256" primitiveType="BINARY_LARGE_OBJECT" jdbcEnumType="2004" javaClassName="java.sql.Blob">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TINYBLOB</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_LARGE_OBJECT_2" defaultSupported="false" maximumLength="65536" primitiveType="BINARY_LARGE_OBJECT" jdbcEnumType="2004" javaClassName="java.sql.Blob">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>BLOB</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_LARGE_OBJECT_3" defaultSupported="false" maximumLength="16777216" primitiveType="BINARY_LARGE_OBJECT" jdbcEnumType="2004" javaClassName="java.sql.Blob">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>MEDIUMBLOB</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_LARGE_OBJECT_4" defaultSupported="false" primitiveType="BINARY_LARGE_OBJECT" jdbcEnumType="2004" javaClassName="java.sql.Blob">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>LONGBLOB</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_LARGE_OBJECT_1" keyConstraintSupported="true" defaultSupported="false" maximumLength="256" primitiveType="CHARACTER_LARGE_OBJECT" jdbcEnumType="2005" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TINYTEXT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_LARGE_OBJECT_2" keyConstraintSupported="true" defaultSupported="false" maximumLength="65536" primitiveType="CHARACTER_LARGE_OBJECT" jdbcEnumType="2005" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>TEXT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_LARGE_OBJECT_3" keyConstraintSupported="true" defaultSupported="false" maximumLength="16777216" primitiveType="CHARACTER_LARGE_OBJECT" jdbcEnumType="2005" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>MEDIUMTEXT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="CHARACTER_LARGE_OBJECT_4" keyConstraintSupported="true" defaultSupported="false" primitiveType="CHARACTER_LARGE_OBJECT" jdbcEnumType="2005" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>LONGTEXT</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="ENUM" keyConstraintSupported="false" primitiveType="CHARACTER_VARYING" jdbcEnumType="12" javaClassName="java.lang.String">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>ENUM</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="DATE_2" keyConstraintSupported="true" primitiveType="DATE" jdbcEnumType="91" javaClassName="java.sql.Date">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>YEAR</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_1" lengthSupported="true" keyConstraintSupported="true" maximumLength="255" lengthUnit="BYTE" primitiveType="BINARY" jdbcEnumType="-2" javaClassName="byte[]">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>BINARY</name>
  </predefinedDataTypeDefinitions>
  <predefinedDataTypeDefinitions xmi:id="BINARY_VARYING_1" lengthSupported="true" keyConstraintSupported="true" maximumLength="255" primitiveType="BINARY_VARYING" lengthUnit="BYTE" jdbcEnumType="-3" javaClassName="byte[]">
    <defaultValueTypes>NULL</defaultValueTypes>
    <name>VARBINARY</name>
  </predefinedDataTypeDefinitions>
  <storedProcedureDefinition/>
  <triggerDefinition/>
  <columnDefinition maximumIdentifierLength="64" identitySupported="true" identityIncrementSupported="true"/>
  <constraintDefinition clusteredPrimaryKeySupported="true" clusteredUniqueConstraintSupported="true" primaryKeyNullable="true" uniqueKeyNullable="true">
    <parentUpdateDRIRuleType>RESTRICT</parentUpdateDRIRuleType>
    <parentUpdateDRIRuleType>CASCADE</parentUpdateDRIRuleType>
    <parentUpdateDRIRuleType>SET_NULL</parentUpdateDRIRuleType>
    <parentUpdateDRIRuleType>NO_ACTION</parentUpdateDRIRuleType>
    <parentDeleteDRIRuleType>RESTRICT</parentDeleteDRIRuleType>
    <parentDeleteDRIRuleType>CASCADE</parentDeleteDRIRuleType>
    <parentDeleteDRIRuleType>SET_NULL</parentDeleteDRIRuleType>
    <parentDeleteDRIRuleType>NO_ACTION</parentDeleteDRIRuleType>
  </constraintDefinition>
  <indexDefinition maximumIdentifierLength="64"/>
  <tableDefinition maximumIdentifierLength="64"/>
  <udtDefinition/>
  <queryDefinition identifierQuoteString="`" hostVariableMarker="@" hostVariableMarkerSupported="true"/>
  <viewDefinition maximumIdentifierLength="64" checkOptionLevelsSupported="true"/>
  <SQLSyntaxDefinition>
    <keywords>ACCESSIBLE</keywords>
    <keywords>ADD</keywords>
    <keywords>ALGORITHM</keywords>
    <keywords>ALL</keywords>
    <keywords>ALTER</keywords>
    <keywords>ANALYZE</keywords>
    <keywords>AND</keywords>
    <keywords>AS</keywords>
    <keywords>ASC</keywords>
    <keywords>ASENSITIVE</keywords>
    <keywords>BEFORE</keywords>
    <keywords>BETWEEN</keywords>
    <keywords>BIGINT</keywords>
    <keywords>BINARY</keywords>
    <keywords>BLOB</keywords>
    <keywords>BOTH</keywords>
    <keywords>BY</keywords>
    <keywords>CALL</keywords>
    <keywords>CASCADE</keywords>
    <keywords>CASE</keywords>
    <keywords>CHANGE</keywords>
    <keywords>CHAR</keywords>
    <keywords>CHARACTER</keywords>
    <keywords>CHECK</keywords>
    <keywords>CHECKSUM</keywords>
    <keywords>COLLATE</keywords>
    <keywords>COLUMN</keywords>
    <keywords>COMMENT</keywords>
    <keywords>CONDITION</keywords>
    <keywords>CONNECTION</keywords>
    <keywords>CONSTRAINT</keywords>
    <keywords>CONTINUE</keywords>
    <keywords>CONVERT</keywords>
    <keywords>CREATE</keywords>
    <keywords>CROSS</keywords>
    <keywords>CURRENT_DATE</keywords>
    <keywords>CURRENT_TIME</keywords>
    <keywords>CURRENT_TIMESTAMP</keywords>
    <keywords>CURRENT_USER</keywords>
    <keywords>CURSOR</keywords>
    <keywords>DATABASE</keywords>
    <keywords>DATABASES</keywords>
    <keywords>DAY_HOUR</keywords>
    <keywords>DAY_MICROSECOND</keywords>
    <keywords>DAY_MINUTE</keywords>
    <keywords>DAY_SECOND</keywords>
    <keywords>DEC</keywords>
    <keywords>DECIMAL</keywords>
    <keywords>DECLARE</keywords>
    <keywords>DEFAULT</keywords>
    <keywords>DEFINER</keywords>
    <keywords>DELAYED</keywords>
    <keywords>DELETE</keywords>
    <keywords>DESC</keywords>
    <keywords>DESCRIBE</keywords>
    <keywords>DETERMINISTIC</keywords>
    <keywords>DISTINCT</keywords>
    <keywords>DISTINCTROW</keywords>
    <keywords>DIV</keywords>
    <keywords>DOUBLE</keywords>
    <keywords>DROP</keywords>
    <keywords>DUAL</keywords>
    <keywords>EACH</keywords>
    <keywords>ELSE</keywords>
    <keywords>ELSEIF</keywords>
    <keywords>ENCLOSED</keywords>
    <keywords>ESCAPED</keywords>
    <keywords>EXISTS</keywords>
    <keywords>EXIT</keywords>
    <keywords>EXPLAIN</keywords>
    <keywords>FALSE</keywords>
    <keywords>FETCH</keywords>
    <keywords>FLOAT</keywords>
    <keywords>FLOAT4</keywords>
    <keywords>FLOAT8</keywords>
    <keywords>FOR</keywords>
    <keywords>FORCE</keywords>
    <keywords>FOREIGN</keywords>
    <keywords>FROM</keywords>
    <keywords>FULLTEXT</keywords>
    <keywords>GOTO</keywords>
    <keywords>GRANT</keywords>
    <keywords>GROUP</keywords>
    <keywords>HAVING</keywords>
    <keywords>HIGH_PRIORITY</keywords>
    <keywords>HOUR_MICROSECOND</keywords>
    <keywords>HOUR_MINUTE</keywords>
    <keywords>HOUR_SECOND</keywords>
    <keywords>IF</keywords>
    <keywords>IGNORE</keywords>
    <keywords>IN</keywords>
    <keywords>INDEX</keywords>
    <keywords>INFILE</keywords>
    <keywords>INNER</keywords>
    <keywords>INOUT</keywords>
    <keywords>INSENSITIVE</keywords>
    <keywords>INSERT</keywords>
    <keywords>INT</keywords>
    <keywords>INT1</keywords>
    <keywords>INT2</keywords>
    <keywords>INT3</keywords>
    <keywords>INT4</keywords>
    <keywords>INT8</keywords>
    <keywords>INTEGER</keywords>
    <keywords>INTERVAL</keywords>
    <keywords>INTO</keywords>
    <keywords>INVOKER</keywords>
    <keywords>IS</keywords>
    <keywords>ITERATE</keywords>
    <keywords>JOIN</keywords>
    <keywords>KEY_BLOCK_SIZE</keywords>
    <keywords>KEY</keywords>
    <keywords>KEYS</keywords>
    <keywords>KILL</keywords>
    <keywords>LABEL</keywords>
    <keywords>LEADING</keywords>
    <keywords>LEAVE</keywords>
    <keywords>LEFT</keywords>
    <keywords>LIKE</keywords>
    <keywords>LIMIT</keywords>
    <keywords>LINEAR</keywords>
    <keywords>LINES</keywords>
    <keywords>LOAD</keywords>
    <keywords>LOCALTIME</keywords>
    <keywords>LOCALTIMESTAMP</keywords>
    <keywords>LOCK</keywords>
    <keywords>LONG</keywords>
    <keywords>LONGBLOB</keywords>
    <keywords>LONGTEXT</keywords>
    <keywords>LOOP</keywords>
    <keywords>LOW_PRIORITY</keywords>
    <keywords>MASTER_SSL_VERIFY_SERVER_CERT</keywords>
    <keywords>MATCH</keywords>
    <keywords>MAX_ROWS</keywords>
    <keywords>MEDIUMBLOB</keywords>
    <keywords>MEDIUMINT</keywords>
    <keywords>MEDIUMTEXT</keywords>
    <keywords>MERGE</keywords>
    <keywords>MIDDLEINT</keywords>
    <keywords>MIN_ROWS</keywords>
    <keywords>MINUTE_MICROSECOND</keywords>
    <keywords>MINUTE_SECOND</keywords>
    <keywords>MOD</keywords>
    <keywords>MODIFIES</keywords>
    <keywords>NATURAL</keywords>
    <keywords>NO_WRITE_TO_BINLOG</keywords>
    <keywords>NOT</keywords>
    <keywords>NULL</keywords>
    <keywords>NUMERIC</keywords>
    <keywords>ON</keywords>
    <keywords>OPTIMIZE</keywords>
    <keywords>OPTION</keywords>
    <keywords>OPTIONALLY</keywords>
    <keywords>OR</keywords>
    <keywords>ORDER</keywords>
    <keywords>OUT</keywords>
    <keywords>OUTER</keywords>
    <keywords>OUTFILE</keywords>
    <keywords>PRECISION</keywords>
    <keywords>PRIMARY</keywords>
    <keywords>PROCEDURE</keywords>
    <keywords>PURGE</keywords>
    <keywords>RANGE</keywords>
    <keywords>READ</keywords>
    <keywords>READ_ONLY</keywords>
    <keywords>READ_WRITE</keywords>
    <keywords>READ</keywords>
    <keywords>READS</keywords>
    <keywords>REAL</keywords>
    <keywords>REFERENCES</keywords>
    <keywords>REGEXP</keywords>
    <keywords>RELEASE</keywords>
    <keywords>RENAME</keywords>
    <keywords>REPEAT</keywords>
    <keywords>REPLACE</keywords>
    <keywords>REQUIRE</keywords>
    <keywords>RESTRICT</keywords>
    <keywords>RETURN</keywords>
    <keywords>REVOKE</keywords>
    <keywords>RIGHT</keywords>
    <keywords>RLIKE</keywords>
    <keywords>ROW_FORMAT</keywords>
    <keywords>SCHEMA</keywords>
    <keywords>SCHEMAS</keywords>
    <keywords>SECOND_MICROSECOND</keywords>
    <keywords>SELECT</keywords>
    <keywords>SENSITIVE</keywords>
    <keywords>SEPARATOR</keywords>
    <keywords>SET</keywords>
    <keywords>SHOW</keywords>
    <keywords>SMALLINT</keywords>
    <keywords>SONAME</keywords>
    <keywords>SPATIAL</keywords>
    <keywords>SPECIFIC</keywords>
    <keywords>SQL</keywords>
    <keywords>SQL_BIG_RESULT</keywords>
    <keywords>SQL_CALC_FOUND_ROWS</keywords>
    <keywords>SQL_SECURITY</keywords>
    <keywords>SQL_SMALL_RESULT</keywords>
    <keywords>SQL</keywords>
    <keywords>SQLEXCEPTION</keywords>
    <keywords>SQLSTATE</keywords>
    <keywords>SQLWARNING</keywords>
    <keywords>SSL</keywords>
    <keywords>STARTING</keywords>
    <keywords>STRAIGHT_JOIN</keywords>
    <keywords>TABLE</keywords>
    <keywords>TEMPTABLE</keywords>
    <keywords>TERMINATED</keywords>
    <keywords>THEN</keywords>
    <keywords>TINYBLOB</keywords>
    <keywords>TINYINT</keywords>
    <keywords>TINYTEXT</keywords>
    <keywords>TO</keywords>
    <keywords>TRAILING</keywords>
    <keywords>TRIGGER</keywords>
    <keywords>TRUE</keywords>
    <keywords>UNDEFINED</keywords>
    <keywords>UNDO</keywords>
    <keywords>UNION</keywords>
    <keywords>UNIQUE</keywords>
    <keywords>UNLOCK</keywords>
    <keywords>UNSIGNED</keywords>
    <keywords>UPDATE</keywords>
    <keywords>UPGRADE</keywords>
    <keywords>USAGE</keywords>
    <keywords>USE</keywords>
    <keywords>USING</keywords>
    <keywords>UTC_DATE</keywords>
    <keywords>UTC_TIME</keywords>
    <keywords>UTC_TIMESTAMP</keywords>
    <keywords>VALUES</keywords>
    <keywords>VARBINARY</keywords>
    <keywords>VARCHAR</keywords>
    <keywords>VARCHARACTER</keywords>
    <keywords>VARYING</keywords>
    <keywords>WHEN</keywords>
    <keywords>WHERE</keywords>
    <keywords>WHILE</keywords>
    <keywords>WITH</keywords>
    <keywords>WRITE</keywords>
    <keywords>XOR</keywords>
    <keywords>YEAR_MONTH</keywords>
    <keywords>ZEROFILL</keywords>
    <operators>:=</operators>
    <operators>||</operators>
    <operators>OR</operators>
    <operators>XOR</operators>
    <operators>&amp;&amp;</operators>
    <operators>AND</operators>
    <operators>NOT</operators>
    <operators>BETWEEN</operators>
    <operators>CASE</operators>
    <operators>WHEN</operators>
    <operators>THEN</operators>
    <operators>ELSE</operators>
    <operators>=</operators>
    <operators>&lt;=></operators>
    <operators>>=</operators>
    <operators>></operators>
    <operators>&lt;=</operators>
    <operators>&lt;</operators>
    <operators>&lt;></operators>
    <operators>!=</operators>
    <operators>IS</operators>
    <operators>LIKE</operators>
    <operators>REGEXP</operators>
    <operators>IN</operators>
    <operators>|</operators>
    <operators>&amp;</operators>
    <operators>&lt;&lt;</operators>
    <operators>>></operators>
    <operators>-</operators>
    <operators>+</operators>
    <operators>*</operators>
    <operators>/</operators>
    <operators>DIV</operators>
    <operators>%</operators>
    <operators>MOD</operators>
    <operators>^</operators>
    <operators>~</operators>
    <operators>!</operators>
    <operators>BINARY</operators>
    <operators>COLLATE</operators>
  </SQLSyntaxDefinition>
</DBDefinition:DatabaseVendorDefinition>

我的SQL：

CREATE DATABASE  IF NOT EXISTS `mydb` /*!40100 DEFAULT CHARACTER SET latin1 */;
USE `mydb`;
-- MySQL dump 10.13  Distrib 5.5.16, for Win32 (x86)
--
-- Host: localhost    Database: mydb
-- ------------------------------------------------------
-- Server version   5.5.28

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
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-- Dump completed on 2012-11-13  8:53:50

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2020-05-17

共1个答案

小编典典

Dali（Eclipse的生成JPA实体的一部分）使用DTP（Eclipse的另一部分）来确定特定数据类型的Java属性类型。这些映射是特定于数据库平台的，并.xmi在各种DTP插件的文件中指定。

例如，在Juno中，对于PostgreSQL，数据类型ABSTIME映射到 插件jar中java.lang.Object文件
/runtime/vendors/postgresql/postgresql_8.x.xmi中的
Java类型./plugins/org.eclipse.datatools.enablement.postgresql.dbdefinition_1.0.2.v201110070445.jar。

根据您的数据库平台和安装的其他插件，这些设置在Indigo和Juno之间可能已更改。您可以提取适当的.xmi文件，对其进行编辑，然后将其返回到其jar中，这将改变实体的生成方式。

2020-05-17