org.objectweb.medor.query.lib
Class Union

java.lang.Object
  |
  +--org.objectweb.medor.lib.BasicTupleStructure
        |
        +--org.objectweb.medor.query.lib.BasicQueryTree
              |
              +--org.objectweb.medor.query.lib.BasicQueryNode
                    |
                    +--org.objectweb.medor.query.lib.Union
All Implemented Interfaces:
Cloneable, java.lang.Cloneable, FilteredQueryTree, QueryNode, QueryTree, TupleStructure

public class Union
extends BasicQueryNode


Field Summary
 
Fields inherited from class org.objectweb.medor.query.lib.BasicQueryNode
children, filter, indexes, tupleLoader
 
Fields inherited from class org.objectweb.medor.query.lib.BasicQueryTree
distinct, name, orderfields
 
Fields inherited from class org.objectweb.medor.lib.BasicTupleStructure
fields, name2field
 
Constructor Summary
Union(QueryTree leftQT, QueryTree rightQT, java.lang.String nodeName, OptimizationMetaData optimizationMD)
           
 
Method Summary
 short getType()
          It retrieves the operation type of the current QueryNode.
 void setQueryFilter(Expression e)
          The setQueryFilter method will be overwritten for implementations which do not support the operation.
 
Methods inherited from class org.objectweb.medor.query.lib.BasicQueryNode
addCalculatedField, addChild, addField, addPropagatedField, clone, getChildren, getDistinct, getFieldName, getName, getOptimizationMetaData, getQueryFilter, getTupleLoader, getTupleStructure, removeField, replace, setDistinct, setTupleLoader, updateCalculatedField, updateChildren, updatePropagatedField
 
Methods inherited from class org.objectweb.medor.query.lib.BasicQueryTree
getOrderBy, setOrderBy
 
Methods inherited from class org.objectweb.medor.lib.BasicTupleStructure
contains, contains, getField, getField, getFieldRank, getFields, getSize
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.objectweb.medor.query.api.QueryTree
getOrderBy, setOrderBy
 

Constructor Detail

Union

public Union(QueryTree leftQT,
             QueryTree rightQT,
             java.lang.String nodeName,
             OptimizationMetaData optimizationMD)
      throws MedorException
Method Detail

getType

public short getType()
Description copied from interface: QueryNode
It retrieves the operation type of the current QueryNode.

Specified by:
getType in interface QueryNode
Specified by:
getType in class BasicQueryNode

setQueryFilter

public void setQueryFilter(Expression e)
Description copied from class: BasicQueryNode
The setQueryFilter method will be overwritten for implementations which do not support the operation.

Specified by:
setQueryFilter in interface FilteredQueryTree
Overrides:
setQueryFilter in class BasicQueryNode
Parameters:
e - is the Expression representing the query filter of the current QueryNode.
See Also:
Expression