com.triactive.jdo.store.sql.expr
Class Join

java.lang.Object
  com.triactive.jdo.store.sql.expr.Join

Direct Known Subclasses:

StandardJoin

public abstract class Join

extends java.lang.Object

Represents an equijoin between two table expressions.

Author:

Mike Martin

Field Summary

protected QueryStatement.QueryColumn[]	fromCols
protected TableExpression	tableExpr
protected QueryStatement.QueryColumn[]	toCols
protected JoinType	type

Constructor Summary

protected

Join(JoinType type, TableExpression tableExpr, QueryStatement.QueryColumn[] fromCols, Column[] toCols)

Method Summary

QueryStatement.QueryColumn[]	fromColumns()
QueryStatement.QueryColumn[]	toColumns()
JoinType	type()

Methods inherited from class java.lang.Object

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

Field Detail

type

protected final JoinType type

tableExpr

protected final TableExpression tableExpr

fromCols

protected final QueryStatement.QueryColumn[] fromCols

toCols

protected final QueryStatement.QueryColumn[] toCols

Constructor Detail

Join

protected Join(JoinType type,
               TableExpression tableExpr,
               QueryStatement.QueryColumn[] fromCols,
               Column[] toCols)

Method Detail

type

public JoinType type()

fromColumns

public QueryStatement.QueryColumn[] fromColumns()

toColumns

public QueryStatement.QueryColumn[] toColumns()