querymethods.query

类 PartTree

java.lang.Object

querymethods.query.PartTree

所有已实现的接口:

java.lang.Iterable<PartTree.OrPart>

public class PartTree
extends java.lang.Object
implements java.lang.Iterable<PartTree.OrPart>

Class to parse a String into a tree or PartTree.OrParts consisting of simple Part instances in turn. Takes a domain class as well to validate that each of the Parts are referring to a property of the domain class. The PartTree can then be used to build queries based on its API instead of parsing the method name for each query execution.

作者:

Oliver Gierke, Thomas Darimont, Christoph Strobl, Mark Paluch

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	PartTree.OrPart A part of the parsed source that results from splitting up the resource around Or keywords.

构造器概要

构造器

构造器和说明
PartTree(java.lang.String source) Creates a new PartTree by parsing the given String.

方法概要

限定符和类型	方法和说明
java.lang.Integer	getMaxResults() Return the number of maximal results to return or null if not restricted.
java.lang.Iterable<Part>	getParts() Returns an Iterable of all parts contained in the PartTree.
java.lang.Iterable<Part>	getParts(Part.Type type) Returns all Parts of the PartTree of the given Part.Type.
Sort	getSort() Returns the Sort specification parsed from the source or null.
java.lang.Boolean	isCountProjection() Returns whether a count projection shall be applied.
java.lang.Boolean	isDelete() return true if the created PartTree is meant to be used for delete operation.
boolean	isDistinct() Returns whether we indicate distinct lookup of entities.
java.lang.Boolean	isExistsProjection() Returns whether an exists projection shall be applied.
boolean	isLimiting() Return true if the create PartTree is meant to be used for a query with limited maximal results.
java.util.Iterator<PartTree.OrPart>	iterator()
java.lang.String	toString()

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.lang.Iterable

forEach, spliterator

构造器详细资料

PartTree

public PartTree(java.lang.String source)

Creates a new PartTree by parsing the given String.

参数:

source - the String to parse

domainClass - the domain class to check individual parts against to ensure they refer to a property of the class

方法详细资料

iterator

public java.util.Iterator<PartTree.OrPart> iterator()

指定者:

iterator 在接口中 java.lang.Iterable<PartTree.OrPart>

getSort

public Sort getSort()

Returns the Sort specification parsed from the source or null.

返回:

the sort

isDistinct

public boolean isDistinct()

Returns whether we indicate distinct lookup of entities.

返回:

true if distinct

isCountProjection

public java.lang.Boolean isCountProjection()

Returns whether a count projection shall be applied.

返回:

isExistsProjection

public java.lang.Boolean isExistsProjection()

Returns whether an exists projection shall be applied.

返回:

从以下版本开始:

1.13

isDelete

public java.lang.Boolean isDelete()

return true if the created PartTree is meant to be used for delete operation.

返回:

从以下版本开始:

1.8

isLimiting

public boolean isLimiting()

Return true if the create PartTree is meant to be used for a query with limited maximal results.

返回:

从以下版本开始:

1.9

getMaxResults

public java.lang.Integer getMaxResults()

Return the number of maximal results to return or null if not restricted.

返回:

从以下版本开始:

1.9

getParts

public java.lang.Iterable<Part> getParts()

Returns an Iterable of all parts contained in the PartTree.

返回:

the iterable Parts

getParts

public java.lang.Iterable<Part> getParts(Part.Type type)

Returns all Parts of the PartTree of the given Part.Type.

参数:

type -

返回:

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object