org.jbpm.query.jpa.data

Class QueryCriteria

java.lang.Object

org.jbpm.query.jpa.data.QueryCriteria

public class QueryCriteria
extends Object

This object contains the following information:

1. The listId, which refers to the field that this criteria applies to
   • See QueryParameterIdentifiers
2. The values of the criteria, which will be applied to the listId field
   • For example, it could be a list of numbers "1, 22, 3"
3. Whether this is a union ("OR") or intersection ("AND") critieria
4. The type of criteria: normal, like (JPQL regex) or range
5. The grouping information of the phrase (see below)

With regard to the grouping information in this class, we treat JPQL/SQL as a "prefix" language here, which means that this class represents the following regular expression/BNF string:

   [)]{0,} [OR|AND] [(]{0,} <CRITERIA>
 

This structure is then represented by the following fields:

   [endGroups] [union] [startGroupos] [values]
 

The main reason to include the grouping status in this object is that other data structures (nested lists, etc) are much harder to de/serialize correctly.

Constructor Summary

Constructors

Constructor and Description
QueryCriteria()
QueryCriteria(QueryCriteria queryCriteria)
QueryCriteria(String listId, boolean union, QueryWhere.ParameterType type)
QueryCriteria(String listId, boolean union, QueryWhere.ParameterType type, int valueListSize)
QueryCriteria(String listId, QueryWhere.ParameterType type)

Method Summary

Methods

Modifier and Type	Method and Description
List<QueryCriteria>	getCriteria()
String	getListId()
List<Object>	getParameters() This method returns a list that should only be read
QueryWhere.ParameterType	getType()
List<Object>	getValues()
Boolean	isUnion()
void	setCriteria(List<QueryCriteria> criteria)
void	setListId(String listId)
void	setType(QueryWhere.ParameterType type)
void	setUnion(Boolean union)
void	setValues(List<Object> values)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCriteria

public QueryCriteria()

QueryCriteria

public QueryCriteria(String listId,
             QueryWhere.ParameterType type)

QueryCriteria

public QueryCriteria(String listId,
             boolean union,
             QueryWhere.ParameterType type)

QueryCriteria

public QueryCriteria(String listId,
             boolean union,
             QueryWhere.ParameterType type,
             int valueListSize)

QueryCriteria

public QueryCriteria(QueryCriteria queryCriteria)

Method Detail

getListId

public String getListId()

setListId

public void setListId(String listId)

isUnion

public Boolean isUnion()

setUnion

public void setUnion(Boolean union)

getType

public QueryWhere.ParameterType getType()

setType

public void setType(QueryWhere.ParameterType type)

getValues

public List<Object> getValues()

setValues

public void setValues(List<Object> values)

getCriteria

public List<QueryCriteria> getCriteria()

setCriteria

public void setCriteria(List<QueryCriteria> criteria)

getParameters

public List<Object> getParameters()

This method returns a list that should only be read

toString

public String toString()

Overrides:

toString in class Object