Package com.querydsl.core.types.dsl

Class PathBuilder<T>

java.lang.Object

com.querydsl.core.types.dsl.DslExpression<T>

com.querydsl.core.types.dsl.SimpleExpression<T>

com.querydsl.core.types.dsl.BeanPath<T>

com.querydsl.core.types.dsl.EntityPathBase<T>

com.querydsl.core.types.dsl.PathBuilder<T>

Type Parameters:

T - expression type

All Implemented Interfaces:

EntityPath<T>, Expression<T>, Path<T>, Serializable

public class PathBuilder<T>
extends EntityPathBase<T>

PathBuilder is an extension to EntityPathBase for dynamic path construction

Usage example:

 PathBuilder<User> user = new PathBuilder<User>(User.class, "user");
 Predicate filter = user.getString("firstName").eq("Bob");
 List<User> users = query.from(user).where(filter).select(user).fetch();
 

Author:

tiwe

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.querydsl.core.types.dsl.DslExpression

hashCode, mixin

Constructor Summary

Constructors

Constructor	Description
PathBuilder(Class<? extends T> type, PathMetadata pathMetadata)	Creates a new PathBuilder instance
PathBuilder(Class<? extends T> type, PathMetadata pathMetadata, PathBuilderValidator validator)	Creates a new PathBuilder instance
PathBuilder(Class<? extends T> type, String variable)	Creates a new PathBuilder instance
PathBuilder(Class<? extends T> type, String variable, PathBuilderValidator validator)	Creates a new PathBuilder instance

Method Summary

Modifier and Type	Method	Description
BooleanPath	get(BooleanPath path)	Create a new Boolean typed path
<A extends Comparable<?>> ComparablePath<A>	get(ComparablePath<A> path)	Create a new Comparable typed path
<A extends Comparable<?>> DatePath<A>	get(DatePath<A> path)	Create a new Date path
<A extends Comparable<?>> DateTimePath<A>	get(DateTimePath<A> path)	Create a new DateTime path
<A extends Enum<A>> EnumPath<A>	get(EnumPath<A> path)	Create a new Enum path
<A extends Number & Comparable<?>> NumberPath<A>	get(NumberPath<A> path)	Create a new Number typed path
StringPath	get(StringPath path)	Create a new String typed path
<A extends Comparable<?>> TimePath<A>	get(TimePath<A> path)	Create a new Time typed path
<A> SimplePath<A>	get(Path<A> path)	Create a new Simple path
PathBuilder<Object>	get(String property)	Create a PathBuilder instance for the given property
<A> PathBuilder<A>	get(String property, Class<A> type)	Create a PathBuilder for the given property with the given type
<A, E> ArrayPath<A,E>	getArray(String property, Class<A> type)	Create a ArrayPath instance for the given property and the given array type
BooleanPath	getBoolean(String propertyName)	Create a new Boolean typed path
<A> CollectionPath<A,PathBuilder<A>>	getCollection(String property, Class<A> type)	Create a new Collection typed path
<A, E extends SimpleExpression<A>> CollectionPath<A,E>	getCollection(String property, Class<A> type, Class<? super E> queryType)	Create a new Collection typed path
<A extends Comparable<?>> ComparablePath<A>	getComparable(String property, Class<A> type)	Create a new Comparable typed path
<A extends Comparable<?>> DatePath<A>	getDate(String property, Class<A> type)	Create a new Date path
<A extends Comparable<?>> DateTimePath<A>	getDateTime(String property, Class<A> type)	Create a new DateTime path
<A extends Enum<A>> EnumPath<A>	getEnum(String property, Class<A> type)	Create a new Enum path
<A> ListPath<A,PathBuilder<A>>	getList(String property, Class<A> type)	Create a new List typed path
<A, E extends SimpleExpression<A>> ListPath<A,E>	getList(String property, Class<A> type, Class<? super E> queryType)	Create a new List typed path
<K, V> MapPath<K,V,PathBuilder<V>>	getMap(String property, Class<K> key, Class<V> value)	Create a new Map typed path
<K, V, E extends SimpleExpression<V>> MapPath<K,V,E>	getMap(String property, Class<K> key, Class<V> value, Class<? super E> queryType)	Create a new Map typed path
Object	getMetadata(Path<?> property)	Returns additional metadata for the given property path or null if none is available
<A extends Number & Comparable<?>> NumberPath<A>	getNumber(String property, Class<A> type)	Create a new Number typed path
<A> SetPath<A,PathBuilder<A>>	getSet(String property, Class<A> type)	Create a new Set typed path
<A, E extends SimpleExpression<A>> SetPath<A,E>	getSet(String property, Class<A> type, Class<? super E> queryType)	Create a new Set typed path
<A> SimplePath<A>	getSimple(String property, Class<A> type)	Create a new Simple path
StringPath	getString(String property)	Create a new String typed path
<A extends Comparable<?>> TimePath<A>	getTime(String property, Class<A> type)	Create a new Time typed path
protected <A> Class<? extends A>	validate(String property, Class<A> propertyType)

Methods inherited from class com.querydsl.core.types.dsl.BeanPath

accept, add, as, createArray, createBoolean, createCollection, createComparable, createDate, createDateTime, createEnum, createList, createMap, createNumber, createSet, createSimple, createString, createTime, forProperty, getAnnotatedElement, getMetadata, getRoot, instanceOf, instanceOfAny

Methods inherited from class com.querydsl.core.types.dsl.SimpleExpression

as, as, count, countDistinct, eq, eq, eqAll, eqAll, eqAny, eqAny, in, in, in, in, in, isNotNull, isNull, ne, ne, neAll, neAny, notIn, notIn, notIn, notIn, notIn, nullif, nullif, when, when

Methods inherited from class com.querydsl.core.types.dsl.DslExpression

equals, getType, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.querydsl.core.types.Expression

accept, getType

Methods inherited from interface com.querydsl.core.types.Path

getAnnotatedElement, getMetadata, getRoot

Constructor Details

PathBuilder

public PathBuilder(Class<? extends T> type,
 PathMetadata pathMetadata,
 PathBuilderValidator validator)

Creates a new PathBuilder instance

Parameters:

type - type of the expression

pathMetadata - path metadata

validator - validator for property creation

PathBuilder

public PathBuilder(Class<? extends T> type,
 PathMetadata pathMetadata)

Creates a new PathBuilder instance

Parameters:

type - type of the expression

pathMetadata - path metadata

PathBuilder

public PathBuilder(Class<? extends T> type,
 String variable,
 PathBuilderValidator validator)

Creates a new PathBuilder instance

Parameters:

type - type of the expression

variable - variable name

validator - validator for property creation

PathBuilder

public PathBuilder(Class<? extends T> type,
 String variable)

Creates a new PathBuilder instance

Parameters:

type - type of the expression

variable - variable name

Method Details

validate

protected <A> Class<? extends A> validate(String property,
 Class<A> propertyType)

getMetadata

public Object getMetadata(Path<?> property)

Description copied from interface: EntityPath

Returns additional metadata for the given property path or null if none is available

Specified by:

getMetadata in interface EntityPath<T>

Overrides:

getMetadata in class EntityPathBase<T>

Parameters:

property - property path

Returns:

metadata for property or null

get

public PathBuilder<Object> get(String property)

Create a PathBuilder instance for the given property

Parameters:

property - property name

Returns:

property path

get

public <A> PathBuilder<A> get(String property,
 Class<A> type)

Create a PathBuilder for the given property with the given type

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getArray

public <A,
E> ArrayPath<A,E> getArray(String property,
 Class<A> type)

Create a ArrayPath instance for the given property and the given array type

Type Parameters:

A -

E -

Parameters:

property - property name

type - property type

Returns:

property path

get

public BooleanPath get(BooleanPath path)

Create a new Boolean typed path

Parameters:

path - existing path

Returns:

property path

getBoolean

public BooleanPath getBoolean(String propertyName)

Create a new Boolean typed path

Parameters:

propertyName - property name

Returns:

property path

getCollection

public <A> CollectionPath<A,PathBuilder<A>> getCollection(String property,
 Class<A> type)

Create a new Collection typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getCollection

public <A,
E extends SimpleExpression<A>>
CollectionPath<A,E> getCollection(String property,
 Class<A> type,
 Class<? super E> queryType)

Create a new Collection typed path

Type Parameters:

A -

E -

Parameters:

property - property name

type - property type

queryType - expression type

Returns:

property path

get

public <A extends Comparable<?>> ComparablePath<A> get(ComparablePath<A> path)

Create a new Comparable typed path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getComparable

public <A extends Comparable<?>> ComparablePath<A> getComparable(String property,
 Class<A> type)

Create a new Comparable typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

get

public <A extends Comparable<?>> DatePath<A> get(DatePath<A> path)

Create a new Date path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getDate

public <A extends Comparable<?>> DatePath<A> getDate(String property,
 Class<A> type)

Create a new Date path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

get

public <A extends Comparable<?>> DateTimePath<A> get(DateTimePath<A> path)

Create a new DateTime path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getDateTime

public <A extends Comparable<?>> DateTimePath<A> getDateTime(String property,
 Class<A> type)

Create a new DateTime path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getEnum

public <A extends Enum<A>> EnumPath<A> getEnum(String property,
 Class<A> type)

Create a new Enum path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

get

public <A extends Enum<A>> EnumPath<A> get(EnumPath<A> path)

Create a new Enum path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getList

public <A> ListPath<A,PathBuilder<A>> getList(String property,
 Class<A> type)

Create a new List typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getList

public <A,
E extends SimpleExpression<A>>
ListPath<A,E> getList(String property,
 Class<A> type,
 Class<? super E> queryType)

Create a new List typed path

Type Parameters:

A -

E -

Parameters:

property - property name

type - property type

queryType - expression type

Returns:

property path

getMap

public <K,
V> MapPath<K,V,PathBuilder<V>> getMap(String property,
 Class<K> key,
 Class<V> value)

Create a new Map typed path

Type Parameters:

K -

V -

Parameters:

property - property name

key - key type

value - value type

Returns:

property path

getMap

public <K,
V,
E extends SimpleExpression<V>>
MapPath<K,V,E> getMap(String property,
 Class<K> key,
 Class<V> value,
 Class<? super E> queryType)

Create a new Map typed path

Type Parameters:

K -

V -

E -

Parameters:

property - property name

key - key type

value - value type

queryType - vaue expression type

Returns:

property path

get

public <A extends Number & Comparable<?>>
NumberPath<A> get(NumberPath<A> path)

Create a new Number typed path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getNumber

public <A extends Number & Comparable<?>>
NumberPath<A> getNumber(String property,
 Class<A> type)

Create a new Number typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getSet

public <A> SetPath<A,PathBuilder<A>> getSet(String property,
 Class<A> type)

Create a new Set typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

getSet

public <A,
E extends SimpleExpression<A>>
SetPath<A,E> getSet(String property,
 Class<A> type,
 Class<? super E> queryType)

Create a new Set typed path

Type Parameters:

A -

E -

Parameters:

property - property name

type - property type

queryType - expression type

Returns:

property path

get

public <A> SimplePath<A> get(Path<A> path)

Create a new Simple path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getSimple

public <A> SimplePath<A> getSimple(String property,
 Class<A> type)

Create a new Simple path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path

get

public StringPath get(StringPath path)

Create a new String typed path

Parameters:

path - existing path

Returns:

property path

getString

public StringPath getString(String property)

Create a new String typed path

Parameters:

property - property name

Returns:

property path

get

public <A extends Comparable<?>> TimePath<A> get(TimePath<A> path)

Create a new Time typed path

Type Parameters:

A -

Parameters:

path - existing path

Returns:

property path

getTime

public <A extends Comparable<?>> TimePath<A> getTime(String property,
 Class<A> type)

Create a new Time typed path

Type Parameters:

A -

Parameters:

property - property name

type - property type

Returns:

property path