org.openlowcode.server.data.specificstorage

Class JoinQueryConditionDefinition<E>

java.lang.Object

org.openlowcode.server.data.specificstorage.JoinQueryConditionDefinition<E>

Type Parameters:

E - type of object on which the field is the payload

public class JoinQueryConditionDefinition<E>
extends java.lang.Object

the definition of a join query condition that can be used in several contexts (generates a join query condition

Author:

Open Lowcode SAS

Constructor Summary

Constructors

Constructor and Description
JoinQueryConditionDefinition(StoredTableSchema maintable, StoredFieldSchema<E> maintablefield, StoredTableSchema sidetable, java.lang.String sidetablesuffix, StoredFieldSchema<E> sidetablefield, DataObjectDefinition<?> sidetableobjectdefinition, QueryOperator<E> joinqueryoperator) creates a join query condition definition

Method Summary

Modifier and Type	Method and Description
JoinQueryCondition<E>	generateJoinQueryCondition(java.lang.String maintablealias) generates the query condition for the specified main table alias
QueryCondition	generateSideTableUniversalQueryCondition(java.lang.String maintablealias) generates the universal query condition on the side object.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinQueryConditionDefinition

public JoinQueryConditionDefinition(StoredTableSchema maintable,
                                    StoredFieldSchema<E> maintablefield,
                                    StoredTableSchema sidetable,
                                    java.lang.String sidetablesuffix,
                                    StoredFieldSchema<E> sidetablefield,
                                    DataObjectDefinition<?> sidetableobjectdefinition,
                                    QueryOperator<E> joinqueryoperator)

creates a join query condition definition

Parameters:

maintable - main table

maintablefield - main table field for the join query

sidetable - side table

sidetablefield - side table field for the join query

joinqueryoperator - Operator (typically equal)

Method Detail

generateJoinQueryCondition

public JoinQueryCondition<E> generateJoinQueryCondition(java.lang.String maintablealias)

generates the query condition for the specified main table alias

Parameters:

maintablealias - main table alias

Returns:

the join query condition

generateSideTableUniversalQueryCondition

public QueryCondition generateSideTableUniversalQueryCondition(java.lang.String maintablealias)

generates the universal query condition on the side object. This will ensure the join to the side object does not impact the query on the main object (e.g. only take the latest iteration of the side object)

Parameters:

maintablealias - main table alias

Returns:

the universal query condition for the side object