iot.jcypher.domainquery

Class AbstractDomainQuery

java.lang.Object

iot.jcypher.domainquery.AbstractDomainQuery

Direct Known Subclasses:

DomainQuery, GDomainQuery

public abstract class AbstractDomainQuery
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AbstractDomainQuery.IntAccess

Field Summary

Fields

Modifier and Type	Field and Description
protected QueryExecutor	queryExecutor

Constructor Summary

Constructors

Constructor and Description
AbstractDomainQuery(IDomainAccess domainAccess)

Method Summary

Methods

Modifier and Type	Method and Description
TerminalResult	BR_CLOSE() Close a block, encapsulating predicate expressions
TerminalResult	BR_OPEN() Open a block, encapsulating predicate expressions
Collect	COLLECT(JcProperty attribute) Collect the specified attribute from all objects in a DomainObjectMatch
protected DomainObjectMatch<DomainObject>	createGenMatchForInternal(List<DomainObject> domainObjects, String domainObjectTypeName) Create a match for a list of domain objects which were retrieved by another query.
<T> DomainObjectMatch<T>	createMatchFor(T domainObject) Create a match for a domain object which was retrieved by another query
protected <T> DomainObjectMatch<T>	createMatchForInternal(List<T> domainObjects, Class<T> domainObjectType) Create a match for a list of domain objects which were retrieved by another query
<T> DomainObjectMatch<T>	createMatchFrom(DomainObjectMatch<T> domainObjectMatch) Create a match from a DomainObjectMatch specified in the context of another query
DomainQueryResult	execute() Execute the domain query
CountQueryResult	executeCount() Retrieve the count for every DomainObjectMatch of the query in order to support pagination
RecordedQuery	getRecordedQuery() Answer the recorded query.
ReplayedQueryContext	getReplayedQueryContext() Answer the context containing DomainObjectMatch(es) of a replayed query.
<T> DomainObjectMatch<T>	INTERSECTION(DomainObjectMatch<T>... set) Build the intersection of the specified sets
TerminalResult	OR() Or two predicate expressions
Order	ORDER(DomainObjectMatch<?> toOrder) Define an order on a set of domain objects which are specified by a DomainObjectMatch in the context of the domain query.
Parameter	parameter(String name) Get or create, if not exists, a query parameter.
<T> Select<T>	REJECT_FROM(DomainObjectMatch<T> start) Reject domain objects from a set of domain objects.
<T> Select<T>	SELECT_FROM(DomainObjectMatch<T> start) Select domain objects out of a set of other domain objects.
Traverse	TRAVERSE_FROM(DomainObjectMatch<?> start) Start traversing the graph of domain objects.
<T> DomainObjectMatch<T>	UNION(DomainObjectMatch<T>... set) Build the union of the specified sets
BooleanOperation	WHERE(IPredicateOperand1 value) Start formulating a predicate expression.

Methods inherited from class java.lang.Object

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

Field Detail

queryExecutor

protected QueryExecutor queryExecutor

Constructor Detail

AbstractDomainQuery

public AbstractDomainQuery(IDomainAccess domainAccess)

Method Detail

createMatchFrom

public <T> DomainObjectMatch<T> createMatchFrom(DomainObjectMatch<T> domainObjectMatch)

Create a match from a DomainObjectMatch specified in the context of another query

Parameters:

domainObjectMatch - a match specified in the context of another query

Returns:

a DomainObjectMatch

createMatchFor

public <T> DomainObjectMatch<T> createMatchFor(T domainObject)

Create a match for a domain object which was retrieved by another query

Parameters:

domainObject - a domain object which was retrieved by another query

Returns:

a DomainObjectMatch

createMatchForInternal

protected <T> DomainObjectMatch<T> createMatchForInternal(List<T> domainObjects,
                                              Class<T> domainObjectType)

Create a match for a list of domain objects which were retrieved by another query

Parameters:

domainObjects - a list of domain objects which were retrieved by another query

domainObjectType - the type of those domain objects

Returns:

a DomainObjectMatch

createGenMatchForInternal

protected DomainObjectMatch<DomainObject> createGenMatchForInternal(List<DomainObject> domainObjects,
                                                        String domainObjectTypeName)

Create a match for a list of domain objects which were retrieved by another query.
The match will be part of a query performed on a generic domain model.

Parameters:

domainObjects - a list of domain objects which were retrieved by another query

domainObjectTypeName - the type name of those domain objects

Returns:

a DomainObjectMatch

parameter

public Parameter parameter(String name)

Get or create, if not exists, a query parameter.

Parameters:

name - of the parameter

Returns:

a query parameter

WHERE

public BooleanOperation WHERE(IPredicateOperand1 value)

Start formulating a predicate expression. A predicate expression yields a boolean value.
Takes an expression like 'person.stringAttribute("name")', yielding an attribute,
e.g. WHERE(person.stringAttribute("name")).EQUALS(...)

Parameters:

value - the value(expression) to formulate the predicate expression upon.

Returns:

OR

public TerminalResult OR()

Or two predicate expressions

BR_OPEN

public TerminalResult BR_OPEN()

Open a block, encapsulating predicate expressions

BR_CLOSE

public TerminalResult BR_CLOSE()

Close a block, encapsulating predicate expressions

ORDER

public Order ORDER(DomainObjectMatch<?> toOrder)

Define an order on a set of domain objects which are specified by a DomainObjectMatch in the context of the domain query.

Parameters:

toOrder - the DomainObjectMatch specifying the set of domain objects which should be ordered

Returns:

TRAVERSE_FROM

public Traverse TRAVERSE_FROM(DomainObjectMatch<?> start)

Start traversing the graph of domain objects.

Parameters:

start - a DomainObjectMatch form where to start the traversal.

Returns:

SELECT_FROM

public <T> Select<T> SELECT_FROM(DomainObjectMatch<T> start)

Select domain objects out of a set of other domain objects.

Parameters:

start - with a DomainObjectMatch representing the initial set.

Returns:

REJECT_FROM

public <T> Select<T> REJECT_FROM(DomainObjectMatch<T> start)

Reject domain objects from a set of domain objects. Answer a set containing all objects of the source set except the rejected ones.

Parameters:

start - with a DomainObjectMatch representing the initial set.

Returns:

COLLECT

public Collect COLLECT(JcProperty attribute)

Collect the specified attribute from all objects in a DomainObjectMatch

Parameters:

attribute -

Returns:

UNION

public <T> DomainObjectMatch<T> UNION(DomainObjectMatch<T>... set)

Build the union of the specified sets

Parameters:

set -

Returns:

INTERSECTION

public <T> DomainObjectMatch<T> INTERSECTION(DomainObjectMatch<T>... set)

Build the intersection of the specified sets

Parameters:

set -

Returns:

execute

public DomainQueryResult execute()

Execute the domain query

Returns:

a DomainQueryResult

executeCount

public CountQueryResult executeCount()

Retrieve the count for every DomainObjectMatch of the query in order to support pagination

Returns:

a CountQueryResult

getReplayedQueryContext

public ReplayedQueryContext getReplayedQueryContext()

Answer the context containing DomainObjectMatch(es) of a replayed query.
Answer null, if this is not a replayed query.

Returns:

getRecordedQuery

public RecordedQuery getRecordedQuery()

Answer the recorded query. May return null.

Returns: