Package uk.ac.starlink.table.jdbc
Class TypeMappers
- java.lang.Object
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- uk.ac.starlink.table.jdbc.TypeMappers
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public class TypeMappers extends java.lang.Object
TypeMapper implementation classes.- Since:
- 2 Feb 2010
- Author:
- Mark Taylor
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Field Summary
Fields Modifier and Type Field Description static TypeMapper
DALI
TypeMapper implementation likeSTANDARD
, but which uses a 'T' character as the separator between the date and time parts of timestamp serializations.static TypeMapper
IDENTITY
TypeMapper implementation which performs no conversions.static TypeMapper
STANDARD
TypeMapper implementation which performs generally useful conversions.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static ValueHandler
createIdentityValueHandler(java.sql.ResultSetMetaData meta, int jcol1)
Constructs a new ValueHandler which performs no conversions.static ValueHandler
createStringValueHandler(java.sql.ResultSetMetaData meta, int jcol1)
Constructs a new ValueHandler which converts values to Strings.static ValueHandler
createTimestampValueHandler(java.sql.ResultSetMetaData meta, int jcol1, char dateTimeSeparator)
Constructs a new ValueHandler which converts JDBC Timestamp values to Strings, with a configurable date/time separator character.
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Field Detail
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STANDARD
public static final TypeMapper STANDARD
TypeMapper implementation which performs generally useful conversions. In particular,Date
subclasses (includingjava.sql.Date
,java.sql.Time
andjava.sql.Timestamp
are turned into Strings, using JDBC timestamp escape format (which is ISO-8601 with a space character separating date and time). The intention is that by using this implementation you will get an output table which can be written using non-specialist output formats such as FITS and VOTable.
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DALI
public static final TypeMapper DALI
TypeMapper implementation likeSTANDARD
, but which uses a 'T' character as the separator between the date and time parts of timestamp serializations. Use of the 'T' separator is mandated by the Data Access Layer Interface standard v1.0, section 3.1.2 (http://www.ivoa.net/documents/DALI/), and so is appropriate for output from VO services such as TAP.
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IDENTITY
public static final TypeMapper IDENTITY
TypeMapper implementation which performs no conversions. The output types are just as JDBC provides them.
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Method Detail
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createIdentityValueHandler
public static ValueHandler createIdentityValueHandler(java.sql.ResultSetMetaData meta, int jcol1) throws java.sql.SQLException
Constructs a new ValueHandler which performs no conversions.- Parameters:
meta
- JDBC metadata objectjcol1
- JDBC column index (first column is 1)- Throws:
java.sql.SQLException
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createStringValueHandler
public static ValueHandler createStringValueHandler(java.sql.ResultSetMetaData meta, int jcol1) throws java.sql.SQLException
Constructs a new ValueHandler which converts values to Strings.- Parameters:
meta
- JDBC metadata objectjcol1
- JDBC column index (first column is 1)- Throws:
java.sql.SQLException
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createTimestampValueHandler
public static ValueHandler createTimestampValueHandler(java.sql.ResultSetMetaData meta, int jcol1, char dateTimeSeparator) throws java.sql.SQLException
Constructs a new ValueHandler which converts JDBC Timestamp values to Strings, with a configurable date/time separator character. The input values are assumed to be of typeTimestamp
.- Parameters:
meta
- JDBC metadata objectjcol1
- JDBC column index (first column is 1)dateTimeSeparator
- separator character between date and time parts of ISO-8601 string; usually either ' ' or 'T'- Throws:
java.sql.SQLException
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