com.atlassian.jira.jql.operand
Class EmptyOperandHandler

java.lang.Object
  com.atlassian.jira.jql.operand.EmptyOperandHandler

All Implemented Interfaces:

OperandHandler<EmptyOperand>

public class EmptyOperandHandler
extends Object
implements OperandHandler<EmptyOperand>

Handles the EmptyOperand.

Since:

v4.0

Constructor Summary

EmptyOperandHandler()

Method Summary

List<QueryLiteral>	getValues(QueryCreationContext queryCreationContext, EmptyOperand operand, TerminalClause terminalClause) Gets the unexpanded values provided by the user on input.
boolean	isEmpty()
boolean	isFunction()
boolean	isList()
MessageSet	validate(com.atlassian.crowd.embedded.api.User searcher, EmptyOperand operand, TerminalClause terminalClause) Will perform operand specific validation.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyOperandHandler

public EmptyOperandHandler()

Method Detail

validate

public MessageSet validate(com.atlassian.crowd.embedded.api.User searcher,
                           EmptyOperand operand,
                           TerminalClause terminalClause)

Description copied from interface: OperandHandler

Will perform operand specific validation.

Specified by:

validate in interface OperandHandler<EmptyOperand>

Parameters:

searcher - the user performing the search

operand - the operand to validate

terminalClause - the terminal clause that contains the operand

Returns:

a MessageSet which will contain any validation errors or warnings or will be empty if there is nothing to report, must not be null.

getValues

public List<QueryLiteral> getValues(QueryCreationContext queryCreationContext,
                                    EmptyOperand operand,
                                    TerminalClause terminalClause)

Description copied from interface: OperandHandler

Gets the unexpanded values provided by the user on input. In the case of a function this is the output values that will later be transformed into index values.

Specified by:

getValues in interface OperandHandler<EmptyOperand>

Parameters:

queryCreationContext - the context of query creation

operand - the operand to get values from

terminalClause - the terminal clause that contains the operand

Returns:

a List of objects that represent this Operands raw values. This must be the values specified by the user.

isList

public boolean isList()

Specified by:

isList in interface OperandHandler<EmptyOperand>

Returns:

true if the operand represents a list of values, false otherwise.

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface OperandHandler<EmptyOperand>

Returns:

true if the operand represents the absence of a value, false otherwise. EmptyOperand

isFunction

public boolean isFunction()

Specified by:

isFunction in interface OperandHandler<EmptyOperand>

Returns:

true if the operand represents a function, false otherwise. FunctionOperand