de.fuberlin.wiwiss.d2rq.expr
Class AttributeEquality

java.lang.Object
  extended by de.fuberlin.wiwiss.d2rq.expr.Expression
      extended by de.fuberlin.wiwiss.d2rq.expr.AttributeEquality

public class AttributeEquality
extends Expression


Field Summary
 
Fields inherited from class de.fuberlin.wiwiss.d2rq.expr.Expression
FALSE, TRUE
 
Method Summary
 Set columns()
           
static Expression create(Attribute attribute1, Attribute attribute2)
           
 boolean equals(Object other)
           
 int hashCode()
           
 boolean isFalse()
           
 boolean isTrue()
           
 Expression renameColumns(ColumnRenamer columnRenamer)
           
 String toSQL(ConnectedDB database, AliasMap aliases)
           
 String toString()
           
 
Methods inherited from class de.fuberlin.wiwiss.d2rq.expr.Expression
and, or
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Method Detail

create

public static Expression create(Attribute attribute1,
                                Attribute attribute2)

columns

public Set columns()
Specified by:
columns in class Expression

isFalse

public boolean isFalse()
Specified by:
isFalse in class Expression

isTrue

public boolean isTrue()
Specified by:
isTrue in class Expression

renameColumns

public Expression renameColumns(ColumnRenamer columnRenamer)
Specified by:
renameColumns in class Expression

toSQL

public String toSQL(ConnectedDB database,
                    AliasMap aliases)
Specified by:
toSQL in class Expression

toString

public String toString()
Overrides:
toString in class Object

equals

public boolean equals(Object other)
Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object