Package org.springframework.data.domain

Interface ExampleMatcher

public interface ExampleMatcher

Specification for property path matching to use in query by example (QBE). An ExampleMatcher can be created for a object type. Instances of ExampleMatcher can be either matchingAll() or matchingAny() and settings can be tuned with... methods in a fluent style. with... methods return a copy of the ExampleMatcher instance with the specified setting. Null-handling defaults to ExampleMatcher.NullHandler.IGNORE and case-sensitive ExampleMatcher.StringMatcher.DEFAULT string matching.

This class is immutable.

Since:

1.12

Author:

Christoph Strobl, Mark Paluch, Oliver Gierke, Jens Schauder

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	ExampleMatcher.GenericPropertyMatcher	A generic property matcher that specifies string matching and case sensitivity.
static class	ExampleMatcher.GenericPropertyMatchers	Predefined property matchers to create a ExampleMatcher.GenericPropertyMatcher.
static interface	ExampleMatcher.MatcherConfigurer<T>	Callback to configure a matcher.
static enum	ExampleMatcher.MatchMode	The match modes to expose so that clients can find about how to concatenate the predicates.
static enum	ExampleMatcher.NoOpPropertyValueTransformer
static enum	ExampleMatcher.NullHandler	Null handling for creating criterion out of an Example.
static class	ExampleMatcher.PropertySpecifier	Define specific property handling for a Dot-Path.
static class	ExampleMatcher.PropertySpecifiers	Define specific property handling for Dot-Paths.
static interface	ExampleMatcher.PropertyValueTransformer	Allows to transform the property value before it is used in the query.
static enum	ExampleMatcher.StringMatcher	Match modes for treatment of String values.

Method Summary

Modifier and Type	Method	Description
ExampleMatcher.StringMatcher	getDefaultStringMatcher()	Get defined ExampleMatcher.StringMatcher.
Set<String>	getIgnoredPaths()
ExampleMatcher.MatchMode	getMatchMode()	Get the match mode of the ExampleMatcher.
ExampleMatcher.NullHandler	getNullHandler()	Get defined null handling.
ExampleMatcher.PropertySpecifiers	getPropertySpecifiers()
default boolean	isAllMatching()	Returns whether all of the predicates of the Example are supposed to match.
default boolean	isAnyMatching()	Returns whether it's sufficient that any of the predicates of the Example match.
boolean	isIgnoreCaseEnabled()
default boolean	isIgnoredPath(String path)
static ExampleMatcher	matching()	Create a new ExampleMatcher including all non-null properties by default matching all predicates derived from the example.
static ExampleMatcher	matchingAll()	Create a new ExampleMatcher including all non-null properties by default matching all predicates derived from the example.
static ExampleMatcher	matchingAny()	Create a new ExampleMatcher including all non-null properties by default matching any predicate derived from the example.
default ExampleMatcher	withIgnoreCase()	Returns a copy of this ExampleMatcher with ignoring case sensitivity by default.
ExampleMatcher	withIgnoreCase(boolean defaultIgnoreCase)	Returns a copy of this ExampleMatcher with defaultIgnoreCase.
ExampleMatcher	withIgnoreCase(String... propertyPaths)	Returns a copy of this ExampleMatcher with ignore case sensitivity for the propertyPaths.
default ExampleMatcher	withIgnoreNullValues()	Returns a copy of this ExampleMatcher with treatment for null values of ExampleMatcher.NullHandler.IGNORE.
ExampleMatcher	withIgnorePaths(String... ignoredPaths)	Returns a copy of this ExampleMatcher with the specified propertyPaths.
default ExampleMatcher	withIncludeNullValues()	Returns a copy of this ExampleMatcher with treatment for null values of ExampleMatcher.NullHandler.INCLUDE .
ExampleMatcher	withMatcher(String propertyPath, ExampleMatcher.GenericPropertyMatcher genericPropertyMatcher)	Returns a copy of this ExampleMatcher with the specified GenericPropertyMatcher for the propertyPath.
default ExampleMatcher	withMatcher(String propertyPath, ExampleMatcher.MatcherConfigurer<ExampleMatcher.GenericPropertyMatcher> matcherConfigurer)	Returns a copy of this ExampleMatcher with the specified GenericPropertyMatcher for the propertyPath.
ExampleMatcher	withNullHandler(ExampleMatcher.NullHandler nullHandler)	Returns a copy of this ExampleMatcher with the specified nullHandler.
ExampleMatcher	withStringMatcher(ExampleMatcher.StringMatcher defaultStringMatcher)	Returns a copy of this ExampleMatcher with the specified string matching of defaultStringMatcher.
ExampleMatcher	withTransformer(String propertyPath, ExampleMatcher.PropertyValueTransformer propertyValueTransformer)	Returns a copy of this ExampleMatcher with the specified PropertyValueTransformer for the propertyPath.

Method Details

matching

static ExampleMatcher matching()

Create a new ExampleMatcher including all non-null properties by default matching all predicates derived from the example.

Returns:

new instance of ExampleMatcher.

See Also:

• matchingAll()

matchingAny

static ExampleMatcher matchingAny()

Create a new ExampleMatcher including all non-null properties by default matching any predicate derived from the example.

Returns:

new instance of ExampleMatcher.

matchingAll

static ExampleMatcher matchingAll()

Create a new ExampleMatcher including all non-null properties by default matching all predicates derived from the example.

Returns:

new instance of ExampleMatcher.

withIgnorePaths

ExampleMatcher withIgnorePaths(String... ignoredPaths)

Returns a copy of this ExampleMatcher with the specified propertyPaths. This instance is immutable and unaffected by this method call.

Parameters:

ignoredPaths - must not be null and not empty.

Returns:

new instance of ExampleMatcher.

withStringMatcher

ExampleMatcher withStringMatcher(ExampleMatcher.StringMatcher defaultStringMatcher)

Returns a copy of this ExampleMatcher with the specified string matching of defaultStringMatcher. This instance is immutable and unaffected by this method call.

Parameters:

defaultStringMatcher - must not be null.

Returns:

new instance of ExampleMatcher.

withIgnoreCase

default ExampleMatcher withIgnoreCase()

Returns a copy of this ExampleMatcher with ignoring case sensitivity by default. This instance is immutable and unaffected by this method call.

Returns:

new instance of ExampleMatcher.

withIgnoreCase

ExampleMatcher withIgnoreCase(boolean defaultIgnoreCase)

Returns a copy of this ExampleMatcher with defaultIgnoreCase. This instance is immutable and unaffected by this method call.

Parameters:

defaultIgnoreCase -

Returns:

new instance of ExampleMatcher.

withMatcher

default ExampleMatcher withMatcher(String propertyPath,
 ExampleMatcher.MatcherConfigurer<ExampleMatcher.GenericPropertyMatcher> matcherConfigurer)

Returns a copy of this ExampleMatcher with the specified GenericPropertyMatcher for the propertyPath. This instance is immutable and unaffected by this method call.

Parameters:

propertyPath - must not be null.

matcherConfigurer - callback to configure a ExampleMatcher.GenericPropertyMatcher, must not be null.

Returns:

new instance of ExampleMatcher.

withMatcher

ExampleMatcher withMatcher(String propertyPath,
 ExampleMatcher.GenericPropertyMatcher genericPropertyMatcher)

Returns a copy of this ExampleMatcher with the specified GenericPropertyMatcher for the propertyPath. This instance is immutable and unaffected by this method call.

Parameters:

propertyPath - must not be null.

genericPropertyMatcher - callback to configure a ExampleMatcher.GenericPropertyMatcher, must not be null.

Returns:

new instance of ExampleMatcher.

withTransformer

ExampleMatcher withTransformer(String propertyPath,
 ExampleMatcher.PropertyValueTransformer propertyValueTransformer)

Returns a copy of this ExampleMatcher with the specified PropertyValueTransformer for the propertyPath.

Parameters:

propertyPath - must not be null.

propertyValueTransformer - must not be null.

Returns:

new instance of ExampleMatcher.

withIgnoreCase

ExampleMatcher withIgnoreCase(String... propertyPaths)

Returns a copy of this ExampleMatcher with ignore case sensitivity for the propertyPaths. This instance is immutable and unaffected by this method call.

Parameters:

propertyPaths - must not be null and not empty.

Returns:

new instance of ExampleMatcher.

withIncludeNullValues

default ExampleMatcher withIncludeNullValues()

Returns a copy of this ExampleMatcher with treatment for null values of ExampleMatcher.NullHandler.INCLUDE . This instance is immutable and unaffected by this method call.

Returns:

new instance of ExampleMatcher.

withIgnoreNullValues

default ExampleMatcher withIgnoreNullValues()

Returns a copy of this ExampleMatcher with treatment for null values of ExampleMatcher.NullHandler.IGNORE. This instance is immutable and unaffected by this method call.

Returns:

new instance of ExampleMatcher.

withNullHandler

ExampleMatcher withNullHandler(ExampleMatcher.NullHandler nullHandler)

Returns a copy of this ExampleMatcher with the specified nullHandler. This instance is immutable and unaffected by this method call.

Parameters:

nullHandler - must not be null.

Returns:

new instance of ExampleMatcher.

getNullHandler

ExampleMatcher.NullHandler getNullHandler()

Get defined null handling.

Returns:

never null

getDefaultStringMatcher

ExampleMatcher.StringMatcher getDefaultStringMatcher()

Get defined ExampleMatcher.StringMatcher.

Returns:

never null.

isIgnoreCaseEnabled

boolean isIgnoreCaseEnabled()

Returns:

true if String should be matched with ignore case option.

isIgnoredPath

default boolean isIgnoredPath(String path)

Parameters:

path - must not be null.

Returns:

return true if path was set to be ignored.

getIgnoredPaths

Set<String> getIgnoredPaths()

Returns:

unmodifiable Set of ignored paths.

getPropertySpecifiers

ExampleMatcher.PropertySpecifiers getPropertySpecifiers()

Returns:

the ExampleMatcher.PropertySpecifiers within the ExampleMatcher.

isAllMatching

default boolean isAllMatching()

Returns whether all of the predicates of the Example are supposed to match. If false is returned, it's sufficient if any of the predicates derived from the Example match.

Returns:

whether all of the predicates of the Example are supposed to match or any of them is sufficient.

isAnyMatching

default boolean isAnyMatching()

Returns whether it's sufficient that any of the predicates of the Example match. If false is returned, all predicates derived from the example need to match to produce results.

Returns:

whether it's sufficient that any of the predicates of the Example match or all need to match.

getMatchMode

ExampleMatcher.MatchMode getMatchMode()

Get the match mode of the ExampleMatcher.

Returns:

never null.

Since:

2.0