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java.lang.Objectorg.d2rq.db.vendor.SQL92
org.d2rq.db.vendor.MySQL
public class MySQL
This syntax class implements MySQL-compatible SQL syntax.
Nested Class Summary | |
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static class |
MySQL.MySQLCompatibilityBitDataType
|
static class |
MySQL.MySQLCompatibilityDateDataType
|
static class |
MySQL.MySQLCompatibilityTimeDataType
|
static class |
MySQL.MySQLCompatibilityTimestampDataType
|
Nested classes/interfaces inherited from class org.d2rq.db.vendor.SQL92 |
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SQL92.PatternDoublingQuoter, SQL92.Quoter |
Field Summary |
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Fields inherited from interface org.d2rq.db.vendor.Vendor |
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HSQLDB, InterbaseOrFirebird, log, MSAccess, MySQL, Oracle, PostgreSQL, SQL92, SQLServer |
Constructor Summary | |
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MySQL()
|
Method Summary | |
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String |
getConcatenationExpression(String[] sqlFragments)
Concatenation of a and b is
"a || b " in standard SQL, but CONCAT(a, b)
in MySQL. |
DataType |
getDataType(int jdbcType,
String name,
int size)
Returns a DataType corresponding to a JDBC type. |
Properties |
getDefaultConnectionProperties()
Returns a set of default connection properties to be used when connecting to this database engine type |
String |
getTrueTable()
For databases that support SQL queries without a FROM
clause, (SELECT 1+1 ), this should return null . |
String |
quoteStringLiteral(String s)
Handles special characters in strings. |
String |
toString(Identifier identifier)
Handles special characters in identifiers. |
Methods inherited from class org.d2rq.db.vendor.SQL92 |
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booleanExpressionToSimpleExpression, getAliasOperator, getRowNumLimitAsExpression, getRowNumLimitAsQueryAppendage, getRowNumLimitAsSelectModifier, initializeConnection, isIgnoredTable, quoteBinaryLiteral, quoteDateLiteral, quoteTimeLiteral, quoteTimestampLiteral, toQualifiedTableName, toString, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public MySQL()
Method Detail |
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public String getConcatenationExpression(String[] sqlFragments)
Vendor
a
and b
is
"a || b
" in standard SQL, but CONCAT(a, b)
in MySQL.
getConcatenationExpression
in interface Vendor
getConcatenationExpression
in class SQL92
sqlFragments
- An array of SQL expressions to be concatenated
public String getTrueTable()
Vendor
FROM
clause, (SELECT 1+1
), this should return null
.
For databases that require some sort of dummy table (e.g., Oracle:
SELECT 1+1 FROM DUAL
), this should return the name of
that table.
getTrueTable
in interface Vendor
getTrueTable
in class SQL92
public String toString(Identifier identifier)
Vendor
toString
in interface Vendor
toString
in class SQL92
identifier
- An identifier, such as an unqualified table or column name
public String quoteStringLiteral(String s)
Vendor
quoteStringLiteral
in interface Vendor
quoteStringLiteral
in class SQL92
s
- An arbitrary character string
public Properties getDefaultConnectionProperties()
Vendor
getDefaultConnectionProperties
in interface Vendor
getDefaultConnectionProperties
in class SQL92
public DataType getDataType(int jdbcType, String name, int size)
Vendor
DataType
corresponding to a JDBC type. This may be
an unsupported datatype; in this case, its DataType.isUnsupported()
method will return true. null
will be returned if the vendor
code doesn't handle this datatype at all; that should generally be
considered a bug.
getDataType
in interface Vendor
getDataType
in class SQL92
jdbcType
- A java.sql.Types
constantname
- The type name, as reported by java.sql
metadata methods, normalized to uppercasesize
- Character size of the type, or 0 if not applicable
null
if the vendor code is broken
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