org.openrdf.sail.rdbms.algebra.base
Class ValueColumnBase

java.lang.Object
  org.openrdf.query.algebra.QueryModelNodeBase
      org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase
          org.openrdf.sail.rdbms.algebra.base.ValueColumnBase

All Implemented Interfaces:

Cloneable, QueryModelNode, SqlExpr

Direct Known Subclasses:

BNodeColumn, DatatypeColumn, DateTimeColumn, HashColumn, LabelColumn, LanguageColumn, LongLabelColumn, LongURIColumn, NumericColumn, RefIdColumn, URIColumn

public abstract class ValueColumnBase
extends RdbmsQueryModelNodeBase
implements SqlExpr

A column in an SQL expression.

Author:

James Leigh

Constructor Summary

ValueColumnBase(ColumnVar var)

ValueColumnBase(Var var)

Method Summary

ValueColumnBase	clone() Returns a (deep) clone of this query model node.
boolean	equals(Object obj)
String	getAlias()
String	getColumn()
ColumnVar	getRdbmsVar()
String	getSignature() Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
String	getVarName()
int	hashCode()
void	setRdbmsVar(ColumnVar var)

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

visit, visit

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

getParentNode, replaceChildNode, 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

ValueColumnBase

public ValueColumnBase(Var var)

ValueColumnBase

public ValueColumnBase(ColumnVar var)

Method Detail

getVarName

public String getVarName()

getRdbmsVar

public ColumnVar getRdbmsVar()

setRdbmsVar

public void setRdbmsVar(ColumnVar var)

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).

clone

public ValueColumnBase 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)

Overrides:

equals in class Object