org.mmbase.storage.search.implementation.database.functions
Class FunctionSqlHandler

java.lang.Object
  org.mmbase.storage.search.implementation.database.ChainedSqlHandler
      org.mmbase.storage.search.implementation.database.functions.FunctionSqlHandler

All Implemented Interfaces:

SqlHandler

public class FunctionSqlHandler
extends ChainedSqlHandler
implements SqlHandler

An SQL handle also recognizing 'FunctionValueConstraint's.

Since:

MMBase-1.8.5

Version:

$Id: FunctionSqlHandler.java 34900 2009-05-01 16:29:42Z michiel $

Author:

Marcel Maatkamp

Constructor Summary

FunctionSqlHandler(SqlHandler successor)

Method Summary

void	appendConstraintToSql(StringBuilder sb, Constraint constraint, SearchQuery query, boolean inverse, boolean inComposite) Represents Constraint object, that is not a CompositeConstraint, as a constraint in SQL format, appending the result to a stringbuffer.

Methods inherited from class org.mmbase.storage.search.implementation.database.ChainedSqlHandler

appendQueryBodyToSql, getAllowedValue, getSuccessor, getSupportLevel, getSupportLevel, toSql

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.mmbase.storage.search.implementation.database.SqlHandler

appendQueryBodyToSql, getAllowedValue, getSupportLevel, getSupportLevel, toSql

Constructor Detail

FunctionSqlHandler

public FunctionSqlHandler(SqlHandler successor)

Method Detail

appendConstraintToSql

public void appendConstraintToSql(StringBuilder sb,
                                  Constraint constraint,
                                  SearchQuery query,
                                  boolean inverse,
                                  boolean inComposite)
                           throws SearchQueryException

Description copied from interface: SqlHandler

Represents Constraint object, that is not a CompositeConstraint, as a constraint in SQL format, appending the result to a stringbuffer. When it is part of a composite expression, it will be surrounded by parenthesis when needed.

Specified by:

appendConstraintToSql in interface SqlHandler

Overrides:

appendConstraintToSql in class ChainedSqlHandler

Parameters:

sb - The stringbuffer to append to.

constraint - The (non-composite) constraint.

query - The searchquery containing the constraint.

inverse - True when the inverse constraint must be represented, false otherwise.

inComposite - True when the constraint is part of a composite expression.

Throws:

SearchQueryException