org.openrdf.sail.rdbms.algebra

Class IdColumn

java.lang.Object

org.openrdf.query.algebra.QueryModelNodeBase

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

org.openrdf.sail.rdbms.algebra.IdColumn

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode, SqlExpr

public class IdColumn
extends RdbmsQueryModelNodeBase
implements SqlExpr

A particular column in an SQL expression.

Author:

James Leigh

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
IdColumn(ColumnVar var)
IdColumn(String alias)
IdColumn(String alias, String column)

Method Summary

Modifier and Type	Method and Description
IdColumn	clone() Returns a (deep) clone of this query model node.
boolean	equals(Object obj) Returns true if this query model node and its children are recursively equal to o and its children.
String	getAlias()
String	getColumn()
String	getSignature() Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
int	hashCode()
<X extends Exception> void	visit(RdbmsQueryModelVisitorBase<X> visitor)

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

visit

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

getParentNode, nullEquals, replaceChildNode, replaceNodeInList, replaceWith, setParentNode, toString, visitChildren

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

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

getParentNode, replaceChildNode, replaceWith, setParentNode, toString, visit, visitChildren

Constructor Detail

IdColumn

public IdColumn(String alias)

IdColumn

public IdColumn(ColumnVar var)

IdColumn

public IdColumn(String alias,
                String column)

Method Detail

getAlias

public String getAlias()

getColumn

public String getColumn()

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 QueryModelNodeBase

Returns:

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

visit

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

Specified by:

visit in class RdbmsQueryModelNodeBase

Throws:

X extends Exception

clone

public IdColumn 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

Specified by:

clone in interface SqlExpr

Overrides:

clone in class QueryModelNodeBase

Returns:

A deep clone of this query model node.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Description copied from interface: QueryModelNode

Returns true if this query model node and its children are recursively equal to o and its children.

Specified by:

equals in interface QueryModelNode

Overrides:

equals in class Object