Top Description Methods

org.apache.derby.iapi.sql.execute.xplain

public Interface XPLAINable

Known Direct Subinterfaces: org.apache.derby.iapi.sql.execute.ResultSetStatistics

This interface has to be implemented by object structures, which want to get explained. The current implementation let the ResultSetStatistics extend this Interface to be explainable.

Method Summary

Modifier and Type	Method and Description
public void	accept(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object.
public Object	getResultSetDescriptor(Object rsID, Object parentID, Object scanID, Object sortID, Object stmtID, Object timingID)
public Object	getResultSetTimingsDescriptor(Object rstID)
public String	getRSXplainDetails()
public String	getRSXplainType()
public Object	getScanPropsDescriptor(Object spID)
public Object	getSortPropsDescriptor(Object spID)

Method Detail

accept	back to summary
public void accept(XPLAINVisitor visitor) This method gets called to let a visitor visit this XPLAINable object. The general contract is to implement pre-order, depth-first traversal to produce a predictable traversal behaviour.

getResultSetDescriptor	back to summary
public Object getResultSetDescriptor(Object rsID, Object parentID, Object scanID, Object sortID, Object stmtID, Object timingID)

getResultSetTimingsDescriptor	back to summary
public Object getResultSetTimingsDescriptor(Object rstID)

getRSXplainDetails	back to summary
public String getRSXplainDetails()

getRSXplainType	back to summary
public String getRSXplainType()

getScanPropsDescriptor	back to summary
public Object getScanPropsDescriptor(Object spID)

getSortPropsDescriptor	back to summary
public Object getSortPropsDescriptor(Object spID)