Package org.postgresql.jdbc
Class PgResultSetMetaData
- java.lang.Object
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- org.postgresql.jdbc.PgResultSetMetaData
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- All Implemented Interfaces:
java.sql.ResultSetMetaData
,java.sql.Wrapper
,PGResultSetMetaData
public class PgResultSetMetaData extends java.lang.Object implements java.sql.ResultSetMetaData, PGResultSetMetaData
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Field Summary
Fields Modifier and Type Field Description protected BaseConnection
connection
protected Field[]
fields
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Constructor Summary
Constructors Constructor Description PgResultSetMetaData(BaseConnection connection, Field[] fields)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getBaseColumnName(int column)
Returns the underlying column name of a query result, or "" if it is unable to be determined.java.lang.String
getBaseSchemaName(int column)
Returns the underlying schema name of query result, or "" if it is unable to be determined.java.lang.String
getBaseTableName(int column)
Returns the underlying table name of query result, or "" if it is unable to be determined.java.lang.String
getCatalogName(int column)
java.lang.String
getColumnClassName(int column)
Returns the fully-qualified name of the Java class whose instances are manufactured if the methodResultSet.getObject
is called to retrieve a value from the column.int
getColumnCount()
int
getColumnDisplaySize(int column)
java.lang.String
getColumnLabel(int column)
java.lang.String
getColumnName(int column)
int
getColumnType(int column)
java.lang.String
getColumnTypeName(int column)
protected Field
getField(int columnIndex)
int
getFormat(int column)
Is a column Text or Binary?protected java.lang.String
getPGType(int columnIndex)
int
getPrecision(int column)
int
getScale(int column)
java.lang.String
getSchemaName(int column)
protected int
getSQLType(int columnIndex)
java.lang.String
getTableName(int column)
boolean
isAutoIncrement(int column)
boolean
isCaseSensitive(int column)
boolean
isCurrency(int column)
boolean
isDefinitelyWritable(int column)
int
isNullable(int column)
boolean
isReadOnly(int column)
boolean
isSearchable(int column)
boolean
isSigned(int column)
boolean
isWrapperFor(java.lang.Class<?> iface)
boolean
isWritable(int column)
<T> T
unwrap(java.lang.Class<T> iface)
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Field Detail
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connection
protected final BaseConnection connection
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fields
protected final Field[] fields
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Constructor Detail
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PgResultSetMetaData
public PgResultSetMetaData(BaseConnection connection, Field[] fields)
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Method Detail
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getColumnCount
public int getColumnCount() throws java.sql.SQLException
- Specified by:
getColumnCount
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isAutoIncrement
public boolean isAutoIncrement(int column) throws java.sql.SQLException
- Specified by:
isAutoIncrement
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isCaseSensitive
public boolean isCaseSensitive(int column) throws java.sql.SQLException
- Specified by:
isCaseSensitive
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isSearchable
public boolean isSearchable(int column) throws java.sql.SQLException
- Specified by:
isSearchable
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isCurrency
public boolean isCurrency(int column) throws java.sql.SQLException
- Specified by:
isCurrency
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isNullable
public int isNullable(int column) throws java.sql.SQLException
- Specified by:
isNullable
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isSigned
public boolean isSigned(int column) throws java.sql.SQLException
- Specified by:
isSigned
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getColumnDisplaySize
public int getColumnDisplaySize(int column) throws java.sql.SQLException
- Specified by:
getColumnDisplaySize
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getColumnLabel
public java.lang.String getColumnLabel(int column) throws java.sql.SQLException
- Specified by:
getColumnLabel
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getColumnName
public java.lang.String getColumnName(int column) throws java.sql.SQLException
- Specified by:
getColumnName
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getBaseColumnName
public java.lang.String getBaseColumnName(int column) throws java.sql.SQLException
Description copied from interface:PGResultSetMetaData
Returns the underlying column name of a query result, or "" if it is unable to be determined.- Specified by:
getBaseColumnName
in interfacePGResultSetMetaData
- Parameters:
column
- column position (1-based)- Returns:
- underlying column name of a query result
- Throws:
java.sql.SQLException
- if something wrong happens
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getSchemaName
public java.lang.String getSchemaName(int column) throws java.sql.SQLException
- Specified by:
getSchemaName
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getBaseSchemaName
public java.lang.String getBaseSchemaName(int column) throws java.sql.SQLException
Description copied from interface:PGResultSetMetaData
Returns the underlying schema name of query result, or "" if it is unable to be determined.- Specified by:
getBaseSchemaName
in interfacePGResultSetMetaData
- Parameters:
column
- column position (1-based)- Returns:
- underlying schema name of query result
- Throws:
java.sql.SQLException
- if something wrong happens
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getPrecision
public int getPrecision(int column) throws java.sql.SQLException
- Specified by:
getPrecision
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getScale
public int getScale(int column) throws java.sql.SQLException
- Specified by:
getScale
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getTableName
public java.lang.String getTableName(int column) throws java.sql.SQLException
- Specified by:
getTableName
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getBaseTableName
public java.lang.String getBaseTableName(int column) throws java.sql.SQLException
Description copied from interface:PGResultSetMetaData
Returns the underlying table name of query result, or "" if it is unable to be determined.- Specified by:
getBaseTableName
in interfacePGResultSetMetaData
- Parameters:
column
- column position (1-based)- Returns:
- underlying table name of query result
- Throws:
java.sql.SQLException
- if something wrong happens
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getCatalogName
public java.lang.String getCatalogName(int column) throws java.sql.SQLException
- Specified by:
getCatalogName
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getColumnType
public int getColumnType(int column) throws java.sql.SQLException
- Specified by:
getColumnType
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getFormat
public int getFormat(int column) throws java.sql.SQLException
Description copied from interface:PGResultSetMetaData
Is a column Text or Binary?- Specified by:
getFormat
in interfacePGResultSetMetaData
- Parameters:
column
- column position (1-based)- Returns:
- if column is Text or Binary
- Throws:
java.sql.SQLException
- if something wrong happens- See Also:
Field.BINARY_FORMAT
,Field.TEXT_FORMAT
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getColumnTypeName
public java.lang.String getColumnTypeName(int column) throws java.sql.SQLException
- Specified by:
getColumnTypeName
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isReadOnly
public boolean isReadOnly(int column) throws java.sql.SQLException
- Specified by:
isReadOnly
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isWritable
public boolean isWritable(int column) throws java.sql.SQLException
- Specified by:
isWritable
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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isDefinitelyWritable
public boolean isDefinitelyWritable(int column) throws java.sql.SQLException
- Specified by:
isDefinitelyWritable
in interfacejava.sql.ResultSetMetaData
- Throws:
java.sql.SQLException
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getField
protected Field getField(int columnIndex) throws java.sql.SQLException
- Throws:
java.sql.SQLException
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getPGType
protected java.lang.String getPGType(int columnIndex) throws java.sql.SQLException
- Throws:
java.sql.SQLException
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getSQLType
protected int getSQLType(int columnIndex) throws java.sql.SQLException
- Throws:
java.sql.SQLException
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getColumnClassName
public java.lang.String getColumnClassName(int column) throws java.sql.SQLException
Returns the fully-qualified name of the Java class whose instances are manufactured if the methodResultSet.getObject
is called to retrieve a value from the column.ResultSet.getObject
may return a subclass of the class returned by this method.- Specified by:
getColumnClassName
in interfacejava.sql.ResultSetMetaData
- Parameters:
column
- the first column is 1, the second is 2, ...- Returns:
- the fully-qualified name of the class in the Java programming language that would be
used by the method
ResultSet.getObject
to retrieve the value in the specified column. This is the class name used for custom mapping. - Throws:
java.sql.SQLException
- if a database access error occurs
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isWrapperFor
public boolean isWrapperFor(java.lang.Class<?> iface) throws java.sql.SQLException
- Specified by:
isWrapperFor
in interfacejava.sql.Wrapper
- Throws:
java.sql.SQLException
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unwrap
public <T> T unwrap(java.lang.Class<T> iface) throws java.sql.SQLException
- Specified by:
unwrap
in interfacejava.sql.Wrapper
- Throws:
java.sql.SQLException
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