Package com.arcadedb.query.sql.executor

Class EmptyResult

java.lang.Object

com.arcadedb.query.sql.executor.EmptyResult

All Implemented Interfaces:

Result

public class EmptyResult
extends Object
implements Result

Empty Result.

Author:

Luca Garulli ([email protected])

Constructor Summary

Constructors

Constructor	Description
EmptyResult()

Method Summary

Modifier and Type	Method	Description
Optional<Document>	getElement()
Record	getElementProperty(String name)	returns an OElement property from the result
Optional<RID>	getIdentity()
Object	getMetadata(String key)	return metadata related to current result given a key
Set<String>	getMetadataKeys()	return all the metadata keys available
<T> T	getProperty(String name)	Returns the value for the property.
<T> T	getProperty(String name, Object defaultValue)	Returns the value for the property.
Set<String>	getPropertyNames()
Optional<Record>	getRecord()
boolean	hasProperty(String varName)
boolean	isElement()
boolean	isProjection()
Document	toElement()
Map<String,Object>	toMap()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.arcadedb.query.sql.executor.Result

encode, getEdge, getVertex, isEdge, isRecord, isVertex, toJson, toJSON

Constructor Detail

EmptyResult

public EmptyResult()

Method Detail

getProperty

public <T> T getProperty(String name)

Description copied from interface: Result

Returns the value for the property.

Specified by:

getProperty in interface Result

Parameters:

name - the property name

Returns:

the property value. If the property value is a persistent record, it only returns the RID. See also Result.getElementProperty(String)

getProperty

public <T> T getProperty(String name,
                         Object defaultValue)

Description copied from interface: Result

Returns the value for the property. If the property does not exist, then the `defaultValue` is returned.

Specified by:

getProperty in interface Result

Parameters:

name - the property name

defaultValue - default value to return in case the property is missing

Returns:

the property value. If the property value is a persistent record, it only returns the RID. See also Result.getElementProperty(String)

getElementProperty

public Record getElementProperty(String name)

Description copied from interface: Result

returns an OElement property from the result

Specified by:

getElementProperty in interface Result

Parameters:

name - the property name

Returns:

the property value. Null if the property is not defined or if it's not an OElement

getPropertyNames

public Set<String> getPropertyNames()

Specified by:

getPropertyNames in interface Result

getIdentity

public Optional<RID> getIdentity()

Specified by:

getIdentity in interface Result

isElement

public boolean isElement()

Specified by:

isElement in interface Result

getElement

public Optional<Document> getElement()

Specified by:

getElement in interface Result

toElement

public Document toElement()

Specified by:

toElement in interface Result

getRecord

public Optional<Record> getRecord()

Specified by:

getRecord in interface Result

isProjection

public boolean isProjection()

Specified by:

isProjection in interface Result

getMetadata

public Object getMetadata(String key)

Description copied from interface: Result

return metadata related to current result given a key

Specified by:

getMetadata in interface Result

Parameters:

key - the metadata key

Returns:

metadata related to current result given a key

getMetadataKeys

public Set<String> getMetadataKeys()

Description copied from interface: Result

return all the metadata keys available

Specified by:

getMetadataKeys in interface Result

Returns:

all the metadata keys available

hasProperty

public boolean hasProperty(String varName)

Specified by:

hasProperty in interface Result

toMap

public Map<String,Object> toMap()

Specified by:

toMap in interface Result