org.apache.jackrabbit.oak.query.index

Class FilterImpl

java.lang.Object

org.apache.jackrabbit.oak.query.index.FilterImpl

All Implemented Interfaces:

Filter

public class FilterImpl
extends Object
implements Filter

A filter or lookup condition.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jackrabbit.oak.spi.query.Filter

Filter.PathRestriction, Filter.PropertyRestriction

Field Summary

Fields inherited from interface org.apache.jackrabbit.oak.spi.query.Filter

EMPTY_FILTER

Constructor Summary

Constructors

Constructor and Description
FilterImpl(Filter filter)
FilterImpl(SelectorImpl selector, String queryStatement, QueryLimits settings) Create a filter.

Method Summary

Modifier and Type	Method and Description
boolean	containsNativeConstraint() Whether the filter contains a native condition.
List<String>	getFulltextConditions() Get the fulltext search conditions, if any.
FullTextExpression	getFullTextConstraint() Get the fulltext search condition expression, if any.
Set<String>	getMixinTypes() Returns the names of all matching mixin node types.
String	getNodeType() Returns the name of the filter node type.
String	getPath() Get the path.
String	getPathPlan() Get the plan for the path.
Filter.PathRestriction	getPathRestriction() Get the path restriction type.
Set<String>	getPrimaryTypes() Returns the names of all matching primary node types.
Filter.PropertyRestriction	getPropertyRestriction(String propertyName) Get the most restrictive property restriction for the given property, if any.
Collection<Filter.PropertyRestriction>	getPropertyRestrictions() Get the list of property restrictions, if any.
List<Filter.PropertyRestriction>	getPropertyRestrictions(String propertyName) Get the all property restriction for the given property.
QueryLimits	getQueryLimits()
String	getQueryStatement() Get the complete query statement.
SelectorImpl	getSelector()
Set<String>	getSupertypes() Returns the names of the filter node type and all its supertypes.
boolean	isAccessible(String path) check whether a certain (valid) path is accessible (can be read) from the user associated with the query Session
boolean	isAlwaysFalse() If the filter condition can not possibly match any row, due to a contradiction in the query (for example "x=1 and x=2").
boolean	isDistinct()
boolean	isPrepared(SelectorImpl selector) Whether the given selector is already prepared during the prepare phase of a join.
boolean	isPreparing()
boolean	matchesAllTypes() Checks whether nodes of all types can match this filter.
static FilterImpl	newTestInstance() Create a new filter instance that is used for unit testing.
void	restrictFulltextCondition(String condition)
void	restrictPath(String addedPath, Filter.PathRestriction addedPathRestriction)
void	restrictProperty(String propertyName, Operator op, PropertyValue v)
void	restrictProperty(String propertyName, Operator op, PropertyValue v, int propertyType)
void	restrictPropertyAsList(String propertyName, List<PropertyValue> list)
void	setAlwaysFalse()
void	setDistinct(boolean distinct)
void	setFullTextConstraint(FullTextExpression constraint)
void	setMatchesAllTypes(boolean matchesAllTypes)
void	setPath(String path)
void	setPreparing(boolean preparing)
boolean	testPath(String path)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterImpl

public FilterImpl(SelectorImpl selector,
                  String queryStatement,
                  QueryLimits settings)

Create a filter.

Parameters:

selector - the selector for the given filter

queryStatement - the query statement

FilterImpl

public FilterImpl(Filter filter)

Method Detail

newTestInstance

public static FilterImpl newTestInstance()

Create a new filter instance that is used for unit testing. This method is relatively slow, because it creates a new query engine setting object. Therefore, it is only to be used for testing. At runtime, the public constructor should be used instead.

Returns:

the filter

setPreparing

public void setPreparing(boolean preparing)

isPreparing

public boolean isPreparing()

isPrepared

public boolean isPrepared(SelectorImpl selector)

Whether the given selector is already prepared during the prepare phase of a join. That means, check whether the passed selector can already provide data.

Parameters:

selector - the selector to test

Returns:

true if it is already prepared

getPath

public String getPath()

Get the path.

Specified by:

getPath in interface Filter

Returns:

the path

getPathRestriction

public Filter.PathRestriction getPathRestriction()

Description copied from interface: Filter

Get the path restriction type.

Specified by:

getPathRestriction in interface Filter

Returns:

the path restriction type

getPathPlan

public String getPathPlan()

Description copied from interface: Filter

Get the plan for the path.

Specified by:

getPathPlan in interface Filter

Returns:

the plan

setPath

public void setPath(String path)

isDistinct

public boolean isDistinct()

setDistinct

public void setDistinct(boolean distinct)

setAlwaysFalse

public void setAlwaysFalse()

isAlwaysFalse

public boolean isAlwaysFalse()

Description copied from interface: Filter

If the filter condition can not possibly match any row, due to a contradiction in the query (for example "x=1 and x=2").

Specified by:

isAlwaysFalse in interface Filter

Returns:

true if the filter condition can not match any row

getSelector

public SelectorImpl getSelector()

getNodeType

@Nullable
public String getNodeType()

Description copied from interface: Filter

Returns the name of the filter node type.

Specified by:

getNodeType in interface Filter

Returns:

nodetype name

matchesAllTypes

public boolean matchesAllTypes()

Description copied from interface: Filter

Checks whether nodes of all types can match this filter.

Specified by:

matchesAllTypes in interface Filter

Returns:

true iff there are no type restrictions

getSupertypes

@Nonnull
public Set<String> getSupertypes()

Description copied from interface: Filter

Returns the names of the filter node type and all its supertypes.

Specified by:

getSupertypes in interface Filter

Returns:

supertype name

getPrimaryTypes

@Nonnull
public Set<String> getPrimaryTypes()

Description copied from interface: Filter

Returns the names of all matching primary node types.

Specified by:

getPrimaryTypes in interface Filter

Returns:

primary node type names

getMixinTypes

@Nonnull
public Set<String> getMixinTypes()

Description copied from interface: Filter

Returns the names of all matching mixin node types.

Specified by:

getMixinTypes in interface Filter

Returns:

mixin node type names

getPropertyRestrictions

public Collection<Filter.PropertyRestriction> getPropertyRestrictions()

Description copied from interface: Filter

Get the list of property restrictions, if any. Each property may contain multiple restrictions, for example x=1 and x=2. For this case, only multi-valued properties match that contain both 1 and 2.

Specified by:

getPropertyRestrictions in interface Filter

Returns:

the conditions (an empty collection if not used)

getPropertyRestriction

public Filter.PropertyRestriction getPropertyRestriction(String propertyName)

Description copied from interface: Filter

Get the most restrictive property restriction for the given property, if any.

Specified by:

getPropertyRestriction in interface Filter

Parameters:

propertyName - the property name

Returns:

the first restriction, or null if there is no restriction for this property

testPath

public boolean testPath(String path)

restrictPropertyAsList

public void restrictPropertyAsList(String propertyName,
                                   List<PropertyValue> list)

restrictProperty

public void restrictProperty(String propertyName,
                             Operator op,
                             PropertyValue v)

restrictProperty

public void restrictProperty(String propertyName,
                             Operator op,
                             PropertyValue v,
                             int propertyType)

getPropertyRestrictions

public List<Filter.PropertyRestriction> getPropertyRestrictions(String propertyName)

Description copied from interface: Filter

Get the all property restriction for the given property.

Specified by:

getPropertyRestrictions in interface Filter

Parameters:

propertyName - the property name

Returns:

the list of restrictions (possibly empty, never null)

toString

public String toString()

Overrides:

toString in class Object

restrictPath

public void restrictPath(String addedPath,
                         Filter.PathRestriction addedPathRestriction)

getFulltextConditions

public List<String> getFulltextConditions()

Description copied from interface: Filter

Get the fulltext search conditions, if any.

Specified by:

getFulltextConditions in interface Filter

Returns:

the conditions (an empty collection if not used)

restrictFulltextCondition

public void restrictFulltextCondition(String condition)

setFullTextConstraint

public void setFullTextConstraint(FullTextExpression constraint)

getFullTextConstraint

public FullTextExpression getFullTextConstraint()

Description copied from interface: Filter

Get the fulltext search condition expression, if any.

Specified by:

getFullTextConstraint in interface Filter

Returns:

the condition (null if none)

containsNativeConstraint

public boolean containsNativeConstraint()

Description copied from interface: Filter

Whether the filter contains a native condition.

Specified by:

containsNativeConstraint in interface Filter

Returns:

true if it does

getQueryStatement

@Nullable
public String getQueryStatement()

Description copied from interface: Filter

Get the complete query statement. The statement should only be used for logging purposes.

Specified by:

getQueryStatement in interface Filter

Returns:

the query statement (possibly null)

setMatchesAllTypes

public void setMatchesAllTypes(boolean matchesAllTypes)

getQueryLimits

public QueryLimits getQueryLimits()

Specified by:

getQueryLimits in interface Filter

isAccessible

public boolean isAccessible(String path)

Description copied from interface: Filter

check whether a certain (valid) path is accessible (can be read) from the user associated with the query Session

Specified by:

isAccessible in interface Filter

Parameters:

path - a valid JCR path

Returns:

true if path can be read by the calling user, false otherwise.