Package com.github.longdt.vertxorm.repository.query

Class QueryFactory

java.lang.Object

com.github.longdt.vertxorm.repository.query.QueryFactory

public class QueryFactory
extends Object

QueryFactory class.

Version:

$Id: $Id

Author:

Long Dinh

Field Summary

Fields

Modifier and Type	Field	Description
static Tuple	EMPTY_PARAMS	Constant EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
QueryFactory()

Method Summary

Modifier and Type	Method	Description
static <O> Query<O>	all()	Creates a query which matches all objects in the collection. This is equivalent to a literal boolean 'true'.
static <E> And<E>	and(Query<E> query1, Query<E> query2)	Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.
static <E> And<E>	and(Query<E> query1, Query<E> query2, Query<E>... additionalQueries)	Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.
static <E> And<E>	and(Query<E> query1, Query<E> query2, Collection<Query<E>> additionalQueries)	Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.
static <O> Order<O>	ascending(String fieldName)	ascending.
static <O,A extends Comparable<A>> Between<O,A>	between(String fieldName, A lowerValue, A upperValue)	Creates a Between query which asserts that an attribute is between a lower and an upper bound, inclusive.
static <O> Like<O>	contains(String fieldName, String value)	Creates a Like query which asserts that an attribute contains with a certain string fragment.
static <O> Order<O>	descending(String fieldName)	descending.
static Tuple	emptyParams()	emptyParams.
static <E> Query<E>	emptyQuery()	emptyQuery.
static <O> Like<O>	endsWith(String fieldName, String value)	Creates a Like query which asserts that an attribute ends with a certain string fragment.
static <E> Equal<E>	equal(String fieldName, Object value)	equal.
static <O,A extends Comparable<A>> GreaterThan<O,A>	greaterThan(String fieldName, A value)	Creates a LessThan query which asserts that an attribute is greater than (but not equal to) a lower bound (i.e.
static <O,A extends Comparable<A>> GreaterThanEqual<O,A>	greaterThanOrEqualTo(String fieldName, A value)	Creates a GreaterThan query which asserts that an attribute is greater than or equal to a lower bound (i.e.
static <O> Has<O>	has(String fieldName)	has.
static <O> ILike<O>	ilike(String fieldName, String value)	Creates a ILike query which asserts that an attribute contains with a certain string fragment.
static <O,A> Query<O>	in(String attribute, A... attributeValues)	Creates a In query which asserts that an attribute has at least one value matching any value in a set of values.
static <O,A> Query<O>	in(String attribute, List<A> attributeValues)	Creates a In query which asserts that an attribute has at least one value matching any value in a set of values.
static <O> Query<O>	isContainedIn(String fieldName, String value)	Creates a Query query which asserts that an attribute is contained in a certain string fragment.
static <O> IsNull<O>	isNull(String fieldName)	isNull.
static <O,A extends Comparable<A>> LessThan<O,A>	lessThan(String fieldName, A value)	Creates a LessThan query which asserts that an attribute is less than (but not equal to) an upper bound (i.e.
static <O,A extends Comparable<A>> LessThanEqual<O,A>	lessThanOrEqualTo(String fieldName, A value)	Creates a LessThanEqual query which asserts that an attribute is less than or equal to an upper bound (i.e.
static <O> Like<O>	like(String fieldName, String value)	Creates a Like query which asserts that an attribute contains with a certain string fragment.
static <O> Query<O>	none()	Creates a query which matches no objects in the collection. This is equivalent to a literal boolean 'false'.
static <O> Not<O>	not(Query<O> query)	Creates a Not query, representing a logical negation of a child query, which when evaluated yields the set complement of the result set from the child query.
static <E> NotEqual<E>	notEqual(String fieldName, Object value)	notEqual.
static <O> Or<O>	or(Query<O> query1, Query<O> query2)	Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.
static <O> Or<O>	or(Query<O> query1, Query<O> query2, Query<O>... additionalQueries)	Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.
static <O> Or<O>	or(Query<O> query1, Query<O> query2, Collection<Query<O>> additionalQueries)	Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.
static <O> RawQuery<O>	raw(String querySql)	raw.
static <O> RawQuery<O>	raw(String querySql, Object... params)	raw.
static <O> Like<O>	startsWith(String fieldName, String value)	Creates a Like query which asserts that an attribute starts with a certain string fragment.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_PARAMS

public static final Tuple EMPTY_PARAMS

Constant EMPTY_PARAMS

Constructor Detail

QueryFactory

public QueryFactory()

Method Detail

equal

public static <E> Equal<E> equal(String fieldName,
                                 Object value)

equal.

Type Parameters:

E - a E object.

Parameters:

fieldName - a String object.

value - a Object object.

Returns:

a Equal object.

notEqual

public static <E> NotEqual<E> notEqual(String fieldName,
                                       Object value)

notEqual.

Type Parameters:

E - a E object.

Parameters:

fieldName - a String object.

value - a Object object.

Returns:

a NotEqual object.

lessThanOrEqualTo

public static <O,A extends Comparable<A>> LessThanEqual<O,A> lessThanOrEqualTo(String fieldName,
                                                                                           A value)

Creates a LessThanEqual query which asserts that an attribute is less than or equal to an upper bound (i.e. less than, inclusive).

Type Parameters:

O - The type of the object containing the attribute

A - The type of attribute

Parameters:

fieldName - The attribute to which the query refers

value - The upper bound to be asserted by the query

Returns:

A LessThan query

lessThan

public static <O,A extends Comparable<A>> LessThan<O,A> lessThan(String fieldName,
                                                                             A value)

Creates a LessThan query which asserts that an attribute is less than (but not equal to) an upper bound (i.e. less than, exclusive).

Type Parameters:

O - The type of the object containing the attribute

A - The type of attribute

Parameters:

fieldName - The attribute to which the query refers

value - The upper bound to be asserted by the query

Returns:

A LessThan query

greaterThanOrEqualTo

public static <O,A extends Comparable<A>> GreaterThanEqual<O,A> greaterThanOrEqualTo(String fieldName,
                                                                                                 A value)

Creates a GreaterThan query which asserts that an attribute is greater than or equal to a lower bound (i.e. greater than, inclusive).

Type Parameters:

O - The type of the object containing the attribute

A - The type of attribute

Parameters:

fieldName - The attribute to which the query refers

value - The lower bound to be asserted by the query

Returns:

A GreaterThan query

greaterThan

public static <O,A extends Comparable<A>> GreaterThan<O,A> greaterThan(String fieldName,
                                                                                   A value)

Creates a LessThan query which asserts that an attribute is greater than (but not equal to) a lower bound (i.e. greater than, exclusive).

Type Parameters:

O - The type of the object containing the attribute

A - The type of attribute

Parameters:

fieldName - The attribute to which the query refers

value - The lower bound to be asserted by the query

Returns:

A GreaterThan query

and

public static <E> And<E> and(Query<E> query1,
                             Query<E> query2)

Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.

Type Parameters:

E - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical AND

query2 - The second child query to be connected via a logical AND

Returns:

An And query, representing a logical AND on child queries

and

public static <E> And<E> and(Query<E> query1,
                             Query<E> query2,
                             Query<E>... additionalQueries)

Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.

Type Parameters:

E - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical AND

query2 - The second child query to be connected via a logical AND

additionalQueries - Additional child queries to be connected via a logical AND

Returns:

An And query, representing a logical AND on child queries

and

public static <E> And<E> and(Query<E> query1,
                             Query<E> query2,
                             Collection<Query<E>> additionalQueries)

Creates an And query, representing a logical AND on child queries, which when evaluated yields the set intersection of the result sets from child queries.

Type Parameters:

E - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical AND

query2 - The second child query to be connected via a logical AND

additionalQueries - Additional child queries to be connected via a logical AND

Returns:

An And query, representing a logical AND on child queries

or

public static <O> Or<O> or(Query<O> query1,
                           Query<O> query2)

Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.

Type Parameters:

O - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical OR

query2 - The second child query to be connected via a logical OR

Returns:

An Or query, representing a logical OR on child queries

or

public static <O> Or<O> or(Query<O> query1,
                           Query<O> query2,
                           Query<O>... additionalQueries)

Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.

Type Parameters:

O - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical OR

query2 - The second child query to be connected via a logical OR

additionalQueries - Additional child queries to be connected via a logical OR

Returns:

An Or query, representing a logical OR on child queries

or

public static <O> Or<O> or(Query<O> query1,
                           Query<O> query2,
                           Collection<Query<O>> additionalQueries)

Creates an Or query, representing a logical OR on child queries, which when evaluated yields the set union of the result sets from child queries.

Type Parameters:

O - The type of the object containing attributes to which child queries refer

Parameters:

query1 - The first child query to be connected via a logical OR

query2 - The second child query to be connected via a logical OR

additionalQueries - Additional child queries to be connected via a logical OR

Returns:

An Or query, representing a logical OR on child queries

not

public static <O> Not<O> not(Query<O> query)

Creates a Not query, representing a logical negation of a child query, which when evaluated yields the set complement of the result set from the child query.

Type Parameters:

O - The type of the object containing attributes to which child queries refer

Parameters:

query - The child query to be logically negated

Returns:

A Not query, representing a logical negation of a child query

has

public static <O> Has<O> has(String fieldName)

has.

Type Parameters:

O - a O object.

Parameters:

fieldName - a String object.

Returns:

a Has object.

isNull

public static <O> IsNull<O> isNull(String fieldName)

isNull.

Type Parameters:

O - a O object.

Parameters:

fieldName - a String object.

Returns:

a IsNull object.

raw

public static <O> RawQuery<O> raw(String querySql,
                                  Object... params)

raw.

Type Parameters:

O - a O object.

Parameters:

querySql - a String object.

params - a Object object.

Returns:

a RawQuery object.

raw

public static <O> RawQuery<O> raw(String querySql)

raw.

Type Parameters:

O - a O object.

Parameters:

querySql - a String object.

Returns:

a RawQuery object.

ascending

public static <O> Order<O> ascending(String fieldName)

ascending.

Type Parameters:

O - a O object.

Parameters:

fieldName - a String object.

Returns:

a Order object.

descending

public static <O> Order<O> descending(String fieldName)

descending.

Type Parameters:

O - a O object.

Parameters:

fieldName - a String object.

Returns:

a Order object.

in

public static <O,A> Query<O> in(String attribute,
                                      A... attributeValues)

Creates a In query which asserts that an attribute has at least one value matching any value in a set of values.

Type Parameters:

A - The type of the attribute

O - The type of the object containing the attribute

Parameters:

attribute - The attribute to which the query refers

attributeValues - The set of values to match

Returns:

An In query

in

public static <O,A> Query<O> in(String attribute,
                                      List<A> attributeValues)

Creates a In query which asserts that an attribute has at least one value matching any value in a set of values.

Type Parameters:

A - The type of the attribute

O - The type of the object containing the attribute

Parameters:

attribute - The attribute to which the query refers

attributeValues - TThe set of values to match

Returns:

An In query

none

public static <O> Query<O> none()

Creates a query which matches no objects in the collection.
This is equivalent to a literal boolean 'false'.

Type Parameters:

O - The type of the objects in the collection

Returns:

A query which matches no objects in the collection

all

public static <O> Query<O> all()

Creates a query which matches all objects in the collection.
This is equivalent to a literal boolean 'true'.

Type Parameters:

O - The type of the objects in the collection

Returns:

A query which matches all objects in the collection

startsWith

public static <O> Like<O> startsWith(String fieldName,
                                     String value)

Creates a Like query which asserts that an attribute starts with a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An Like query

endsWith

public static <O> Like<O> endsWith(String fieldName,
                                   String value)

Creates a Like query which asserts that an attribute ends with a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An Like query

contains

public static <O> Like<O> contains(String fieldName,
                                   String value)

Creates a Like query which asserts that an attribute contains with a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An Like query

like

public static <O> Like<O> like(String fieldName,
                               String value)

Creates a Like query which asserts that an attribute contains with a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An Like query

ilike

public static <O> ILike<O> ilike(String fieldName,
                                 String value)

Creates a ILike query which asserts that an attribute contains with a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An ILike query

isContainedIn

public static <O> Query<O> isContainedIn(String fieldName,
                                         String value)

Creates a Query query which asserts that an attribute is contained in a certain string fragment.

Type Parameters:

O - The type of the object containing the attribute

Parameters:

fieldName - The attribute to which the query refers

value - The value to be asserted by the query

Returns:

An Query query

between

public static <O,A extends Comparable<A>> Between<O,A> between(String fieldName,
                                                                           A lowerValue,
                                                                           A upperValue)

Creates a Between query which asserts that an attribute is between a lower and an upper bound, inclusive.

Type Parameters:

O - The type of the object containing the attribute

A - The type of attribute

Parameters:

fieldName - The attribute to which the query refers

lowerValue - The lower bound to be asserted by the query

upperValue - The upper bound to be asserted by the query

Returns:

A GreaterThan query

emptyParams

public static Tuple emptyParams()

emptyParams.

Returns:

a Tuple object.

emptyQuery

public static <E> Query<E> emptyQuery()

emptyQuery.

Type Parameters:

E - a E object.

Returns:

a Query object.