mondrian.rolap.aggmatcher
Class JdbcSchema.Table.Column

java.lang.Object
  mondrian.rolap.aggmatcher.JdbcSchema.Table.Column

Enclosing class:

JdbcSchema.Table

public class JdbcSchema.Table.Column
extends Object

A column in a table.

Nested Class Summary

class

JdbcSchema.Table.Column.Usage A usage of a column.

Field Summary

MondrianDef.Column

column

Method Summary

int	getCharOctetLength() For char types the maximum number of bytes in the column.
int	getColumnSize() Get the size in bytes of the column in the database.
SqlQuery.Datatype	getDatatype() Return true if this column is numeric.
int	getDecimalDigits() Get number of fractional digits.
String	getName() This is the column's name in the database, not a symbolic name.
int	getNumPrecRadix() Get Radix (typically either 10 or 2).
JdbcSchema.Table	getTable() Get this column's table.
int	getType() Get the columnIter java.sql.Type enun of the column.
String	getTypeName() Get the columnIter java.sql.Type name.
List<JdbcSchema.Table.Column.Usage>	getUsages() Get an iterator over all usages.
Iterator<JdbcSchema.Table.Column.Usage>	getUsages(JdbcSchema.UsageType usageType) Get an iterator over all usages of the given column type.
boolean	hasUsage() Return true if the column has at least one usage.
boolean	hasUsage(JdbcSchema.UsageType columnType) Return true if the column has at least one usage of the given column type.
boolean	isNullable() False means the column definitely does not allow NULL values.
JdbcSchema.Table.Column.Usage	newUsage(JdbcSchema.UsageType usageType) Create a new usage of a given column type.
int	numberOfUsages() How many usages does this column have.
void	print(PrintWriter pw, String prefix)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

column

public final MondrianDef.Column column

Method Detail

getName

public String getName()

This is the column's name in the database, not a symbolic name.

getType

public int getType()

Get the columnIter java.sql.Type enun of the column.

getTypeName

public String getTypeName()

Get the columnIter java.sql.Type name.

getTable

public JdbcSchema.Table getTable()

Get this column's table.

getDatatype

public SqlQuery.Datatype getDatatype()

Return true if this column is numeric.

getColumnSize

public int getColumnSize()

Get the size in bytes of the column in the database.

getDecimalDigits

public int getDecimalDigits()

Get number of fractional digits.

getNumPrecRadix

public int getNumPrecRadix()

Get Radix (typically either 10 or 2).

getCharOctetLength

public int getCharOctetLength()

For char types the maximum number of bytes in the column.

isNullable

public boolean isNullable()

False means the column definitely does not allow NULL values.

numberOfUsages

public int numberOfUsages()

How many usages does this column have. A column has between 0 and N usages. It has no usages if usages is some administrative column. It has one usage if, for example, its the fact_count column or a level column (for a collapsed dimension aggregate). It might have 2 usages if its a foreign key that is also used as a measure. If its a column used in N measures, then usages will have N usages.

hasUsage

public boolean hasUsage()

Return true if the column has at least one usage.

hasUsage

public boolean hasUsage(JdbcSchema.UsageType columnType)

Return true if the column has at least one usage of the given column type.

getUsages

public List<JdbcSchema.Table.Column.Usage> getUsages()

Get an iterator over all usages.

getUsages

public Iterator<JdbcSchema.Table.Column.Usage> getUsages(JdbcSchema.UsageType usageType)

Get an iterator over all usages of the given column type.

newUsage

public JdbcSchema.Table.Column.Usage newUsage(JdbcSchema.UsageType usageType)

Create a new usage of a given column type.

toString

public String toString()

Overrides:

toString in class Object

print

public void print(PrintWriter pw,
                  String prefix)