com.denodo.vdb.engine.customwrapper.condition

Class CustomWrapperConditionHolder

java.lang.Object

com.denodo.vdb.engine.customwrapper.condition.CustomWrapperConditionHolder

public final class CustomWrapperConditionHolder
extends Object

Encapsulates a CustomWrapperCondition and its representation as a Map<CustomWrapperFieldExpression, Object>. This is a simplified version of the condition defined by the CustomWrapperCondition instance, available to the users for convenience. For a CustomWrapperCondition to be available as a Map, it must comply with the following requirements:

• The CustomWrapperCondition is either a simple condition or an AND condition which encapsulates either simple conditions or AND conditions.
• Any simple condition encapsulated by the CustomWrapperCondition must comply with this pattern: FIELD = value.

Users may call getConditionMap(boolean) (with true as a parameter) to obtain a Map even if the CustomWrapperCondition does not comply with the explained requirements. Note that, in this case, information loss may occur.

Constructor Summary

Constructors

Constructor and Description
CustomWrapperConditionHolder(CustomWrapperCondition complexCondition) Creates an instance of CustomWrapperConditionHolder encapsulating a condition and generates its Map<CustomWrapperFieldExpression, Object> version.

Method Summary

Modifier and Type	Method and Description
CustomWrapperCondition	getComplexCondition()
Map<CustomWrapperFieldExpression,Object>	getConditionMap()
Map<CustomWrapperFieldExpression,Object>	getConditionMap(boolean force)

Methods inherited from class java.lang.Object

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

Constructor Detail

CustomWrapperConditionHolder

public CustomWrapperConditionHolder(CustomWrapperCondition complexCondition)

Creates an instance of CustomWrapperConditionHolder encapsulating a condition and generates its Map<CustomWrapperFieldExpression, Object> version.

Users do not need to instantiate this class.

Parameters:

complexCondition - the encapsulated condition

Method Detail

getComplexCondition

public CustomWrapperCondition getComplexCondition()

Returns:

the encapsulated CustomWrapperCondition.

getConditionMap

public Map<CustomWrapperFieldExpression,Object> getConditionMap()

Returns:

the Map version of the encapsulated CustomWrapperCondition, or null if the condition does not comply with the requirements (see CustomWrapperConditionHolder).

getConditionMap

public Map<CustomWrapperFieldExpression,Object> getConditionMap(boolean force)

Parameters:

force - true if the conversion is going to be forced, false otherwise. Note that if this parameter is true, the returned Map may not be equivalent to the encapsulated CustomWrapperCondition.

Returns:

the Map version of the encapsulated CustomWrapperCondition, or null if the condition does not comply with the requirements (see CustomWrapperConditionHolder), unless force is set to true.