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java.lang.Objectnet.sf.basedb.core.ReporterListJoin
class ReporterListJoin
Represents a join to a reporter list in a dynamic query:
leftTable JOIN ReporterListScores ON ...
This class is used by, for example, DynamicSpotQuery.joinReporterList(ReporterList, JoinType)
to create the
Join
query element that is needed. After the reporter list
has been join it can be used in expressions in the query.
ExtraValueExpression
,
Dynamic.extraValue(ExtraValue)
Field Summary | |
---|---|
private JoinType |
joinType
|
private String |
leftAlias
|
private String |
leftColumn
|
private ReporterList |
reporterList
|
private RealTable |
right
|
Constructor Summary | |
---|---|
ReporterListJoin(ReporterList reporterList,
JoinType joinType,
RealTable left,
String leftColumn)
Create a new join to a reporter list using the given RealTable as the left table. |
|
ReporterListJoin(ReporterList reporterList,
JoinType joinType,
VirtualTable left,
VirtualColumn leftColumn)
Create a new join to a reporter list using the given VirtualTable as the left table. |
Method Summary | |
---|---|
boolean |
equals(Object other)
This join is equal to another ReporterListJoin if they join to the same reporter list with the same join type. |
Collection<? extends QueryElement> |
getChildren()
Get the children of this query element or null if it has no children. |
String |
getThetaJoin(Query query,
DbControl dc)
|
String |
getThetaJoinCondition(Query query,
DbControl dc)
|
int |
hashCode()
|
String |
toQl(Query query,
DbControl dc)
Create a query language string of the query element. |
String |
toString()
|
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
---|
private final ReporterList reporterList
private final JoinType joinType
private final String leftAlias
private final String leftColumn
private final RealTable right
Constructor Detail |
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ReporterListJoin(ReporterList reporterList, JoinType joinType, VirtualTable left, VirtualColumn leftColumn)
reporterList
- The reporter list to joinjoinType
- The type of joinleft
- The left tableleftColumn
- The column in the left table holding reporter id:sReporterListJoin(ReporterList reporterList, JoinType joinType, RealTable left, String leftColumn)
reporterList
- The reporter list to joinjoinType
- The type of joinleft
- The left tableleftColumn
- The column in the left table holding reporter id:sMethod Detail |
---|
public String toQl(Query query, DbControl dc) throws BaseException
QueryElement
Query.getQueryType()
method to find out which query language is wanted
in case the element requires different syntax for different languages.
toQl
in interface QueryElement
query
- The query that is about to be executeddc
- The DbControl
object used to execute the query
BaseException
- If there is any other errorpublic Collection<? extends QueryElement> getChildren()
QueryElement
AddExpression
has two children, the expression
beeing added.
getChildren
in interface QueryElement
public String getThetaJoin(Query query, DbControl dc) throws BaseException
getThetaJoin
in interface Join
BaseException
public String getThetaJoinCondition(Query query, DbControl dc) throws BaseException
getThetaJoinCondition
in interface Join
BaseException
public String toString()
toString
in class Object
public boolean equals(Object other)
equals
in class Object
public int hashCode()
hashCode
in class Object
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