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org.apache.derby.impl.jdbc
Class EmbedResultSetMetaData  

java.lang.Object
  org.apache.derby.impl.jdbc.EmbedResultSetMetaData

All Implemented Interfaces:

java.sql.ResultSetMetaData

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public class EmbedResultSetMetaData

extends java.lang.Object

implements java.sql.ResultSetMetaData

A ResultSetMetaData object can be used to find out about the types and properties of the columns in a ResultSet.

We take the (cloudscape) ResultDescription and examine it, to return the appropriate information.

This class can be used outside of this package to convert a ResultDescription into a ResultSetMetaData object.

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Field Summary
private  org.apache.derby.iapi.sql.ResultColumnDescriptor[]	columnInfo

 

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

 

Constructor Summary

EmbedResultSetMetaData(org.apache.derby.iapi.sql.ResultColumnDescriptor[] columnInfo)

 

Method Summary
java.lang.String	getCatalogName(int column)           What's a column's table's catalog name?
java.lang.String	getColumnClassName(int column)           JDBC 2.0
int	getColumnCount()           What's the number of columns in the ResultSet?
int	getColumnDisplaySize(int column)           What's the column's normal max width in chars?
java.lang.String	getColumnLabel(int column)           What's the suggested column title for use in printouts and displays?
java.lang.String	getColumnName(int column)           What's a column's name?
int	getColumnType(int column)           What's a column's SQL type?
org.apache.derby.iapi.types.DataTypeDescriptor	getColumnTypeDescriptor(int column)
java.lang.String	getColumnTypeName(int column)           What's a column's data source specific type name?
int	getPrecision(int column)           What's a column's number of decimal digits?
static org.apache.derby.iapi.sql.ResultColumnDescriptor	getResultColumnDescriptor(java.lang.String name, org.apache.derby.iapi.types.DataTypeDescriptor dtd)
static org.apache.derby.iapi.sql.ResultColumnDescriptor	getResultColumnDescriptor(java.lang.String name, int jdcbTypeId, boolean nullable)
static org.apache.derby.iapi.sql.ResultColumnDescriptor	getResultColumnDescriptor(java.lang.String name, int jdcbTypeId, boolean nullable, int length)
int	getScale(int column)           What's a column's number of digits to right of the decimal point?
java.lang.String	getSchemaName(int column)           What's a column's table's schema?
java.lang.String	getTableName(int column)           What's a column's table name?
boolean	isAutoIncrement(int column)           Is the column automatically numbered, thus read-only?
boolean	isCaseSensitive(int column)           Does a column's case matter?
boolean	isCurrency(int column)           Is the column a cash value?
boolean	isDefinitelyWritable(int column)           Will a write on the column definitely succeed?
int	isNullable(int column)           Can you put a NULL in this column?
boolean	isReadOnly(int column)           Is a column definitely not writable?
boolean	isSearchable(int column)           Can the column be used in a where clause?
boolean	isSigned(int column)           Is the column a signed number?
boolean	isWritable(int column)           Is it possible for a write on the column to succeed?
private  void	validColumnNumber(int column)

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

columnInfo

private final org.apache.derby.iapi.sql.ResultColumnDescriptor[] columnInfo

Constructor Detail

EmbedResultSetMetaData

public EmbedResultSetMetaData(org.apache.derby.iapi.sql.ResultColumnDescriptor[] columnInfo)

Method Detail

getColumnCount

public int getColumnCount()

What's the number of columns in the ResultSet?

Specified by:

getColumnCount in interface java.sql.ResultSetMetaData

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isAutoIncrement

public boolean isAutoIncrement(int column)
                        throws java.sql.SQLException

Is the column automatically numbered, thus read-only?

Specified by:

isAutoIncrement in interface java.sql.ResultSetMetaData

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isCaseSensitive

public boolean isCaseSensitive(int column)
                        throws java.sql.SQLException

Does a column's case matter?

Specified by:

isCaseSensitive in interface java.sql.ResultSetMetaData

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isSearchable

public boolean isSearchable(int column)
                     throws java.sql.SQLException

Can the column be used in a where clause?

Specified by:

isSearchable in interface java.sql.ResultSetMetaData

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isCurrency

public boolean isCurrency(int column)
                   throws java.sql.SQLException

Is the column a cash value?

Specified by:

isCurrency in interface java.sql.ResultSetMetaData

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isNullable

public int isNullable(int column)
               throws java.sql.SQLException

Can you put a NULL in this column?

Specified by:

isNullable in interface java.sql.ResultSetMetaData

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isSigned

public boolean isSigned(int column)
                 throws java.sql.SQLException

Is the column a signed number?

Specified by:

isSigned in interface java.sql.ResultSetMetaData

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getColumnDisplaySize

public int getColumnDisplaySize(int column)
                         throws java.sql.SQLException

What's the column's normal max width in chars?

Specified by:

getColumnDisplaySize in interface java.sql.ResultSetMetaData

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getColumnLabel

public java.lang.String getColumnLabel(int column)
                                throws java.sql.SQLException

What's the suggested column title for use in printouts and displays?

Specified by:

getColumnLabel in interface java.sql.ResultSetMetaData

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getColumnName

public java.lang.String getColumnName(int column)
                               throws java.sql.SQLException

What's a column's name?

Specified by:

getColumnName in interface java.sql.ResultSetMetaData

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getSchemaName

public java.lang.String getSchemaName(int column)
                               throws java.sql.SQLException

What's a column's table's schema?

Specified by:

getSchemaName in interface java.sql.ResultSetMetaData

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getPrecision

public int getPrecision(int column)
                 throws java.sql.SQLException

What's a column's number of decimal digits?

Specified by:

getPrecision in interface java.sql.ResultSetMetaData

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getScale

public int getScale(int column)
             throws java.sql.SQLException

What's a column's number of digits to right of the decimal point?

Specified by:

getScale in interface java.sql.ResultSetMetaData

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getTableName

public java.lang.String getTableName(int column)
                              throws java.sql.SQLException

What's a column's table name?

Specified by:

getTableName in interface java.sql.ResultSetMetaData

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getCatalogName

public java.lang.String getCatalogName(int column)
                                throws java.sql.SQLException

What's a column's table's catalog name?

Specified by:

getCatalogName in interface java.sql.ResultSetMetaData

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getColumnType

public int getColumnType(int column)
                  throws java.sql.SQLException

What's a column's SQL type?

Specified by:

getColumnType in interface java.sql.ResultSetMetaData

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getColumnTypeName

public java.lang.String getColumnTypeName(int column)
                                   throws java.sql.SQLException

What's a column's data source specific type name?

Specified by:

getColumnTypeName in interface java.sql.ResultSetMetaData

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isReadOnly

public boolean isReadOnly(int column)
                   throws java.sql.SQLException

Is a column definitely not writable?

Specified by:

isReadOnly in interface java.sql.ResultSetMetaData

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isWritable

public boolean isWritable(int column)
                   throws java.sql.SQLException

Is it possible for a write on the column to succeed?

Specified by:

isWritable in interface java.sql.ResultSetMetaData

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isDefinitelyWritable

public boolean isDefinitelyWritable(int column)
                             throws java.sql.SQLException

Will a write on the column definitely succeed?

Specified by:

isDefinitelyWritable in interface java.sql.ResultSetMetaData

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validColumnNumber

private void validColumnNumber(int column)
                        throws java.sql.SQLException

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getColumnTypeDescriptor

public org.apache.derby.iapi.types.DataTypeDescriptor getColumnTypeDescriptor(int column)
                                                                       throws java.sql.SQLException

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getColumnClassName

public java.lang.String getColumnClassName(int column)
                                    throws java.sql.SQLException

JDBC 2.0

Return the fully qualified name of the Java class whose instances are manufactured if ResultSet.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 interface java.sql.ResultSetMetaData

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getResultColumnDescriptor

public static org.apache.derby.iapi.sql.ResultColumnDescriptor getResultColumnDescriptor(java.lang.String name,
                                                                                         int jdcbTypeId,
                                                                                         boolean nullable)

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getResultColumnDescriptor

public static org.apache.derby.iapi.sql.ResultColumnDescriptor getResultColumnDescriptor(java.lang.String name,
                                                                                         int jdcbTypeId,
                                                                                         boolean nullable,
                                                                                         int length)

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getResultColumnDescriptor

public static org.apache.derby.iapi.sql.ResultColumnDescriptor getResultColumnDescriptor(java.lang.String name,
                                                                                         org.apache.derby.iapi.types.DataTypeDescriptor dtd)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> [ jdbc overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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