Package org.springframework.data.relational.core.query

Class Criteria

java.lang.Object

org.springframework.data.relational.core.query.Criteria

All Implemented Interfaces:

CriteriaDefinition

public class Criteria
extends Object
implements CriteriaDefinition

Central class for creating queries. It follows a fluent API style so that you can easily chain together multiple criteria. Static import of the Criteria.property(…) method will improve readability as in where(property(…).is(…).

The Criteria API supports composition with a NULL object and a static factory method. Example usage:

 Criteria.from(Criteria.where("name").is("Foo"), Criteria.from(Criteria.where("age").greaterThan(42)));
 

rendering:

 WHERE name = 'Foo' AND age > 42
 

Since:

2.0

Author:

Mark Paluch, Oliver Drotbohm, Roman Chigvintsev, Jens Schauder

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Criteria.CriteriaStep	Interface declaring terminal builder methods to build a Criteria.

Nested classes/interfaces inherited from interface org.springframework.data.relational.core.query.CriteriaDefinition

CriteriaDefinition.Combinator, CriteriaDefinition.Comparator

Method Summary

Modifier and Type	Method	Description
Criteria.CriteriaStep	and(String column)	Create a new Criteria and combine it with AND using the provided column name.
Criteria	and(List<? extends CriteriaDefinition> criteria)	Create a new Criteria and combine it as group with AND using the provided Criteria group.
Criteria	and(CriteriaDefinition criteria)	Create a new Criteria and combine it as group with AND using the provided Criteria group.
static Criteria	empty()	Static factory method to create an empty Criteria.
static Criteria	from(List<Criteria> criteria)	Create a new Criteria and combine it as group with AND using the provided Criterias.
static Criteria	from(Criteria... criteria)	Create a new Criteria and combine it as group with AND using the provided Criterias.
SqlIdentifier	getColumn()
CriteriaDefinition.Combinator	getCombinator()
CriteriaDefinition.Comparator	getComparator()
List<CriteriaDefinition>	getGroup()
Criteria	getPrevious()
Object	getValue()
boolean	hasPrevious()
Criteria	ignoreCase(boolean ignoreCase)	Creates a new Criteria with the given "ignore case" flag.
boolean	isEmpty()
boolean	isGroup()
boolean	isIgnoreCase()	Checks whether comparison should be done in case-insensitive way.
Criteria.CriteriaStep	or(String column)	Create a new Criteria and combine it with OR using the provided column name.
Criteria	or(List<? extends CriteriaDefinition> criteria)	Create a new Criteria and combine it as group with OR using the provided Criteria group.
Criteria	or(CriteriaDefinition criteria)	Create a new Criteria and combine it as group with OR using the provided Criteria group.
String	toString()
static Criteria.CriteriaStep	where(String column)	Static factory method to create a Criteria using the provided column name.

Methods inherited from class java.lang.Object

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

Method Details

empty

public static Criteria empty()

Static factory method to create an empty Criteria.

Returns:

an empty Criteria.

from

public static Criteria from(Criteria... criteria)

Create a new Criteria and combine it as group with AND using the provided Criterias.

Returns:

new Criteria.

from

public static Criteria from(List<Criteria> criteria)

Create a new Criteria and combine it as group with AND using the provided Criterias.

Returns:

new Criteria.

where

public static Criteria.CriteriaStep where(String column)

Static factory method to create a Criteria using the provided column name.

Parameters:

column - Must not be null or empty.

Returns:

a new Criteria.CriteriaStep object to complete the first Criteria.

and

public Criteria.CriteriaStep and(String column)

Create a new Criteria and combine it with AND using the provided column name.

Parameters:

column - Must not be null or empty.

Returns:

a new Criteria.CriteriaStep object to complete the next Criteria.

and

public Criteria and(CriteriaDefinition criteria)

Create a new Criteria and combine it as group with AND using the provided Criteria group.

Parameters:

criteria - criteria object.

Returns:

a new Criteria object.

Since:

1.1

and

public Criteria and(List<? extends CriteriaDefinition> criteria)

Create a new Criteria and combine it as group with AND using the provided Criteria group.

Parameters:

criteria - criteria objects.

Returns:

a new Criteria object.

or

public Criteria.CriteriaStep or(String column)

Create a new Criteria and combine it with OR using the provided column name.

Parameters:

column - Must not be null or empty.

Returns:

a new Criteria.CriteriaStep object to complete the next Criteria.

or

public Criteria or(CriteriaDefinition criteria)

Create a new Criteria and combine it as group with OR using the provided Criteria group.

Parameters:

criteria - criteria object.

Returns:

a new Criteria object.

Since:

1.1

or

public Criteria or(List<? extends CriteriaDefinition> criteria)

Create a new Criteria and combine it as group with OR using the provided Criteria group.

Parameters:

criteria - criteria object.

Returns:

a new Criteria object.

Since:

1.1

ignoreCase

public Criteria ignoreCase(boolean ignoreCase)

Creates a new Criteria with the given "ignore case" flag.

Parameters:

ignoreCase - true if comparison should be done in case-insensitive way

Returns:

a new Criteria object

getPrevious

@Nullable
public Criteria getPrevious()

Specified by:

getPrevious in interface CriteriaDefinition

Returns:

the previous Criteria object. Can be null if there is no previous Criteria.

See Also:

• hasPrevious()

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface CriteriaDefinition

Returns:

true if this Criteria has a previous one.

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface CriteriaDefinition

Returns:

true if this Criteria is empty.

Since:

1.1

isGroup

public boolean isGroup()

Specified by:

isGroup in interface CriteriaDefinition

Returns:

true if this Criteria is empty.

getCombinator

public CriteriaDefinition.Combinator getCombinator()

Specified by:

getCombinator in interface CriteriaDefinition

Returns:

CriteriaDefinition.Combinator to combine this criteria with a previous one.

getGroup

public List<CriteriaDefinition> getGroup()

Specified by:

getGroup in interface CriteriaDefinition

getColumn

@Nullable
public SqlIdentifier getColumn()

Specified by:

getColumn in interface CriteriaDefinition

Returns:

the column/property name.

getComparator

@Nullable
public CriteriaDefinition.Comparator getComparator()

Specified by:

getComparator in interface CriteriaDefinition

Returns:

CriteriaDefinition.Comparator.

getValue

@Nullable
public Object getValue()

Specified by:

getValue in interface CriteriaDefinition

Returns:

the comparison value. Can be null.

isIgnoreCase

public boolean isIgnoreCase()

Checks whether comparison should be done in case-insensitive way.

Specified by:

isIgnoreCase in interface CriteriaDefinition

Returns:

true if comparison should be done in case-insensitive way

toString

public String toString()

Overrides:

toString in class Object