org.openrdf.sail.rdbms.algebra

Class JoinItem

java.lang.Object

org.openrdf.query.algebra.QueryModelNodeBase

org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase

org.openrdf.sail.rdbms.algebra.base.FromItem

org.openrdf.sail.rdbms.algebra.JoinItem

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode

public class JoinItem
extends FromItem

An SQL join.

Author:

James Leigh

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JoinItem(String alias, String tableName)
JoinItem(String alias, String tableName, Number predId)

Method Summary

Modifier and Type	Method and Description
void	addVar(ColumnVar var)
List<ColumnVar>	appendVars(List<ColumnVar> vars)
JoinItem	clone() Returns a (deep) clone of this query model node.
Number	getPredId()
String	getSignature() Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
String	getTableName()
ColumnVar	getVarForChildren(String name)
<X extends Exception> void	visit(RdbmsQueryModelVisitorBase<X> visitor)

Methods inherited from class org.openrdf.sail.rdbms.algebra.base.FromItem

addFilter, addJoin, addJoinBefore, getAlias, getFilters, getFromItem, getFromItemNotInUnion, getJoins, getVar, isLeft, joinAdded, removeFilter, replaceChildNode, setLeft, visitChildren

Methods inherited from class org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase

visit

Methods inherited from class org.openrdf.query.algebra.QueryModelNodeBase

getParentNode, nullEquals, replaceNodeInList, replaceWith, setParentNode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openrdf.query.algebra.QueryModelNode

equals

Constructor Detail

JoinItem

public JoinItem(String alias,
                String tableName,
                Number predId)

JoinItem

public JoinItem(String alias,
                String tableName)

Method Detail

getTableName

public String getTableName()

getPredId

public Number getPredId()

addVar

public void addVar(ColumnVar var)

getVarForChildren

public ColumnVar getVarForChildren(String name)

Overrides:

getVarForChildren in class FromItem

appendVars

public List<ColumnVar> appendVars(List<ColumnVar> vars)

Overrides:

appendVars in class FromItem

getSignature

public String getSignature()

Description copied from class: QueryModelNodeBase

Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.

Specified by:

getSignature in interface QueryModelNode

Overrides:

getSignature in class FromItem

Returns:

The node's signature, e.g. SLICE (offset=10, limit=10).

clone

public JoinItem clone()

Description copied from interface: QueryModelNode

Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.

Specified by:

clone in interface QueryModelNode

Overrides:

clone in class FromItem

Returns:

A deep clone of this query model node.

visit

public <X extends Exception> void visit(RdbmsQueryModelVisitorBase<X> visitor)
                                 throws X extends Exception

Specified by:

visit in class RdbmsQueryModelNodeBase

Throws:

X extends Exception