Package org.rumbledb.items

Class LazyObjectItem

java.lang.Object

org.rumbledb.items.LazyObjectItem

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, Item

public class LazyObjectItem
extends Object
implements Item

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	LazyObjectItem.LazyValue

Constructor Summary

Constructors

Constructor	Description
LazyObjectItem()

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object otherItem)	Tests for logical equality.
ItemType	getDynamicType()	Returns the dynamic type of the item (only for error message purposes).
boolean	getEffectiveBooleanValue()	Returns the effective boolean value of the item, if atomic.
Item	getItemByKey(String key)	Returns the value item associated with a specific key, if it is a map.
Item	getItemByKey(Item key)	Returns the value item associated with a specific key, if it is an object.
List<Item>	getItemKeys()	Returns the (possibly non-string) atomic keys of the item, if it is a map-like object.
List<Item>	getItemValues()	Returns the values of the item, if it is a map.
List<String>	getKeys()	Returns the string keys of the item, if it is a map.
List<Item>	getSequenceByKey(String key)	Returns the value sequence associated with a string key, if it is a map.
List<Item>	getSequenceByKey(Item key)	Returns the value sequence associated with a key, if it is a map-like object.
List<List<Item>>	getSequenceValues()	Returns the value sequences of the item, if it is a map.
List<String>	getStringKeys()	Returns the string keys of the item, if it is a map.
String	getStringValue()	Returns the string value of the item, if it is an atomic item.
List<Item>	getValues()	Returns the values of the item, if it is a map.
int	hashCode()	Computes a hash code.
boolean	isMap()	Tests whether the item is a map.
boolean	isObject()	Tests whether the item is an object.
void	putItemByKey(String key, Item value)	Adds a key-value pair, if it is a map.
void	putItemByKey(Item key, Item value)	Adds a key-value pair, if it is a map.
void	putLazyItemByKey(String key, RuntimeIterator iterator, DynamicContext context, boolean isArray)	Adds a key-value pair, if it is a lazy object item.
void	putSequenceByKey(String key, List<Item> valueSequence)	Adds a key-sequence pair, if it is a map.
void	putSequenceByKey(Item key, List<Item> valueSequence)	Adds a key-sequence pair, if it is a map.
void	read(com.esotericsoftware.kryo.Kryo kryo, com.esotericsoftware.kryo.io.Input input)
void	removeItemByKey(String key)	Removes a key-value pair, if it is a map.
void	removeItemByKey(Item key)	Removes a key-value pair, if it is a map.
void	write(com.esotericsoftware.kryo.Kryo kryo, com.esotericsoftware.kryo.io.Output output)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.rumbledb.api.Item

addParentToDescendants, append, appendItem, appendSequence, atomizedValue, attributes, baseUri, castToDecimalValue, castToDoubleValue, castToFloatValue, castToIntegerValue, castToIntValue, children, declaredNamespaceNodes, documentUri, generateNativeQuery, getBinaryValue, getBodyIterator, getBooleanValue, getCollection, getContent, getDateTimeValue, getDay, getDecimalValue, getDFVariablesInClosure, getDoubleValue, getDurationValue, getEpochMillis, getEstimator, getFloatValue, getHour, getIdentifier, getIntegerValue, getIntValue, getItemAt, getItemMembers, getItems, getLocalVariablesInClosure, getMinute, getModuleDynamicContext, getMonth, getMutabilityLevel, getNanosecond, getOffset, getParameterNames, getPathIn, getPeriodValue, getQNameValue, getRDDVariablesInClosure, getSecond, getSequenceAt, getSequenceMembers, getSignature, getSize, getSparkSQLType, getSparkSQLValue, getSparkSQLValue, getTableLocation, getTextValue, getTimeValue, getTopLevelID, getTopLevelOrder, getTransformer, getVariantValue, getXmlDocumentPosition, getYear, hasDateTime, hasTimeZone, isAnyURI, isArray, isArrayOfItems, isAtomic, isAttributeNode, isBase64Binary, isBinary, isBoolean, isBuiltinFunction, isCommentNode, isDate, isDateTime, isDayTimeDuration, isDecimal, isDocumentNode, isDouble, isDuration, isElementNode, isEstimator, isFloat, isFunction, isGDay, isGMonth, isGMonthDay, isGYear, isGYearMonth, isHexBinary, isId, isIdrefs, isInt, isInteger, isNamespaceNode, isNaN, isNode, isNull, isNumeric, isPeriod, isProcessingInstructionNode, isQName, isString, isTextNode, isTime, isTransformer, isUntypedAtomic, isYearMonthDuration, namespaceNodes, nilled, nodeKind, nodeName, parent, physicalEquals, putItemAt, putItemsAt, putSequenceAt, putSequencesAt, removeItemAt, removeSequenceAt, serialize, serializeAsJSON, setCollection, setMutabilityLevel, setParent, setPathIn, setTableLocation, setTopLevelID, setTopLevelOrder, setXmlDocumentPosition, typedValue, typeName, unparsedEntityPublicId, unparsedEntitySystemId

Constructor Details

LazyObjectItem

public LazyObjectItem()

Method Details

equals

public boolean equals(Object otherItem)

Description copied from interface: Item

Tests for logical equality. The semantics are that of the eq operator.

Specified by:

equals in interface Item

Overrides:

equals in class Object

Parameters:

otherItem - another item.

Returns:

true it is equal to other, false otherwise.

isMap

public boolean isMap()

Description copied from interface: Item

Tests whether the item is a map.

Specified by:

isMap in interface Item

Returns:

true if it is a map, false otherwise.

isObject

public boolean isObject()

Description copied from interface: Item

Tests whether the item is an object. Object items are legacy JSONiq objects, that allow only for - string keys - singleton values

Specified by:

isObject in interface Item

Returns:

true if it is an object, false otherwise.

getKeys

public List<String> getKeys()

Description copied from interface: Item

Returns the string keys of the item, if it is a map.

Specified by:

getKeys in interface Item

Returns:

the list of the keys.

getStringKeys

public List<String> getStringKeys()

Description copied from interface: Item

Returns the string keys of the item, if it is a map.

Specified by:

getStringKeys in interface Item

Returns:

a list of strings, corresponding to the keys of the map.

getItemKeys

public List<Item> getItemKeys()

Description copied from interface: Item

Returns the (possibly non-string) atomic keys of the item, if it is a map-like object.

Specified by:

getItemKeys in interface Item

Returns:

the list of atomic keys as items.

getValues

public List<Item> getValues()

Description copied from interface: Item

Returns the values of the item, if it is a map.

Specified by:

getValues in interface Item

Returns:

the list of the value items.

getItemValues

public List<Item> getItemValues()

Description copied from interface: Item

Returns the values of the item, if it is a map.

Specified by:

getItemValues in interface Item

Returns:

a list containing, for each key in the map, the item associated with that key.

getSequenceValues

public List<List<Item>> getSequenceValues()

Description copied from interface: Item

Returns the value sequences of the item, if it is a map.

Specified by:

getSequenceValues in interface Item

Returns:

a list containing, for each key in the map, the sequence of items associated with that key.

getItemByKey

public Item getItemByKey(String key)

Description copied from interface: Item

Returns the value item associated with a specific key, if it is a map.

Specified by:

getItemByKey in interface Item

Parameters:

key - a string key.

Returns:

the item associated with the key, or null if absent.

getItemByKey

public Item getItemByKey(Item key)

Description copied from interface: Item

Returns the value item associated with a specific key, if it is an object.

Specified by:

getItemByKey in interface Item

Parameters:

key - a key item.

Returns:

the item associated with the key, or null if absent.

getSequenceByKey

public List<Item> getSequenceByKey(String key)

Description copied from interface: Item

Returns the value sequence associated with a string key, if it is a map.

Specified by:

getSequenceByKey in interface Item

Parameters:

key - a string key.

Returns:

the value sequence for the key, or null if absent.

getSequenceByKey

public List<Item> getSequenceByKey(Item key)

Description copied from interface: Item

Returns the value sequence associated with a key, if it is a map-like object.

Specified by:

getSequenceByKey in interface Item

Parameters:

key - an atomic key item.

Returns:

the value sequence for the key, or null if absent.

putItemByKey

public void putItemByKey(String key,
 Item value)

Description copied from interface: Item

Adds a key-value pair, if it is a map.

Specified by:

putItemByKey in interface Item

Parameters:

key - a key.

value - a value.

putItemByKey

public void putItemByKey(Item key,
 Item value)

Description copied from interface: Item

Adds a key-value pair, if it is a map.

Specified by:

putItemByKey in interface Item

Parameters:

key - an atomic key.

value - a value.

putSequenceByKey

public void putSequenceByKey(Item key,
 List<Item> valueSequence)

Description copied from interface: Item

Adds a key-sequence pair, if it is a map.

Specified by:

putSequenceByKey in interface Item

Parameters:

key - an atomic key.

valueSequence - a value sequence.

putSequenceByKey

public void putSequenceByKey(String key,
 List<Item> valueSequence)

Description copied from interface: Item

Adds a key-sequence pair, if it is a map.

Specified by:

putSequenceByKey in interface Item

Parameters:

key - an atomic key.

valueSequence - a value sequence.

removeItemByKey

public void removeItemByKey(String key)

Description copied from interface: Item

Removes a key-value pair, if it is a map.

Specified by:

removeItemByKey in interface Item

Parameters:

key - a key.

removeItemByKey

public void removeItemByKey(Item key)

Description copied from interface: Item

Removes a key-value pair, if it is a map.

Specified by:

removeItemByKey in interface Item

Parameters:

key - an atomic key.

putLazyItemByKey

public void putLazyItemByKey(String key,
 RuntimeIterator iterator,
 DynamicContext context,
 boolean isArray)

Description copied from interface: Item

Adds a key-value pair, if it is a lazy object item. The value is lazily computed.

Specified by:

putLazyItemByKey in interface Item

Parameters:

key - a key.

iterator - a runtime iterator.

context - a dynamic context.

isArray - whether to always wrap the result in an array.

write

public void write(com.esotericsoftware.kryo.Kryo kryo,
 com.esotericsoftware.kryo.io.Output output)

Specified by:

write in interface com.esotericsoftware.kryo.KryoSerializable

read

public void read(com.esotericsoftware.kryo.Kryo kryo,
 com.esotericsoftware.kryo.io.Input input)

Specified by:

read in interface com.esotericsoftware.kryo.KryoSerializable

hashCode

public int hashCode()

Description copied from interface: Item

Computes a hash code.

Specified by:

hashCode in interface Item

Overrides:

hashCode in class Object

Returns:

a hash code as an int.

getDynamicType

public ItemType getDynamicType()

Description copied from interface: Item

Returns the dynamic type of the item (only for error message purposes).

Specified by:

getDynamicType in interface Item

Returns:

the dynamic type as an item type.

getStringValue

public String getStringValue()

Description copied from interface: Item

Returns the string value of the item, if it is an atomic item.

Specified by:

getStringValue in interface Item

Returns:

the string value.

getEffectiveBooleanValue

public boolean getEffectiveBooleanValue()

Description copied from interface: Item

Returns the effective boolean value of the item, if atomic.

Specified by:

getEffectiveBooleanValue in interface Item

Returns:

the effective boolean value.