org.beanio.internal.parser
Class RecordAggregation

java.lang.Object
  org.beanio.internal.util.TreeNode<Component>
      org.beanio.internal.parser.Component
          org.beanio.internal.parser.ParserComponent
              org.beanio.internal.parser.DelegatingParser
                  org.beanio.internal.parser.RecordAggregation

All Implemented Interfaces:

Cloneable, Iterable<Component>, Parser, Property, Selector, Replicateable

Direct Known Subclasses:

RecordCollection, RecordMap

public abstract class RecordAggregation
extends DelegatingParser
implements Selector, Property

Since:

2.0.1

Author:

Kevin Seim

Field Summary

protected ParserLocal<Object>

value

Fields inherited from interface org.beanio.internal.parser.Selector

COUNT_KEY

Fields inherited from interface org.beanio.internal.parser.Property

AGGREGATION_ARRAY, AGGREGATION_COLLECTION, AGGREGATION_MAP, COLLECTION, COMPLEX, MAP, SIMPLE

Constructor Summary

RecordAggregation()
Constructs a new RecordAggregation.

Method Summary

void	clearValue(ParsingContext context) Clears the current property value.
Selector	close(ParsingContext context) Checks for any unsatisfied components before the stream is closed.
protected Object	createAggregationType()
Object	createValue(ParsingContext context) Creates the property value and returns it.
boolean	defines(Object value)
PropertyAccessor	getAccessor()
int	getCount(ParsingContext context) Returns the number of times this component was matched within the current iteration of its parent component.
int	getMaxOccurs() Returns the maximum number of occurrences of this component (within the context of its parent).
int	getMinOccurs() Returns the minimum number of occurrences of this component (within the context of its parent).
Object	getNullValue()
int	getOrder() Returns the order of this component (within the context of its parent).
Property	getProperty() Returns the Property mapped to this component, or null if there is no property mapping.
Selector	getSelector() Returns the child selector.
Class<?>	getType()
Object	getValue(ParsingContext context) Returns the unmarshalled property value.
boolean	isIdentifier() Returns whether this parser or any descendant of this parser is used to identify a record during unmarshalling.
boolean	isMaxOccursReached(ParsingContext context) Returns whether this component has reached its maximum occurrences.
boolean	isRecordGroup() Returns whether this component is a record group.
protected boolean	isSupportedChild(Component child) Returns whether a node is a supported child of this node.
Selector	matchAny(UnmarshallingContext context) Finds a parser that matches the input record.
Selector	matchNext(MarshallingContext context) Finds a parser for marshalling a bean object.
Selector	matchNext(UnmarshallingContext context) Finds a parser for unmarshalling a record based on the current state of the stream.
void	registerLocals(Set<ParserLocal<? extends Object>> locals) Called by a stream to register variables stored in the parsing context.
void	reset(ParsingContext context) Resets the component count of this Selector's children.
void	restoreState(ParsingContext context, String namespace, Map<String,Object> state) Restores a Map of previously stored state information.
void	setAccessor(PropertyAccessor accessor)
void	setCount(ParsingContext context, int count) Sets the number of times this component was matched within the current iteration of its parent component.
void	setIdentifier(boolean identifier)
void	setType(Class<?> type) Sets the collection type.
void	setValue(ParsingContext context, Object value) Sets the property value for marshaling.
void	skip(UnmarshallingContext context) Skips a record or group of records.
void	updateState(ParsingContext context, String namespace, Map<String,Object> state) Updates a Map with the current state of the Writer to allow for restoration at a later time.

Methods inherited from class org.beanio.internal.parser.DelegatingParser

getParser, getSize, hasContent, isLazy, marshal, matches, unmarshal

Methods inherited from class org.beanio.internal.util.TreeNode

add, clone, find, getChildren, getFirst, getName, iterator, print, setName, size, sort, toParamString, toString, updateReferences

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.beanio.internal.parser.Parser

getName, getSize, hasContent, isLazy, marshal, matches, unmarshal

Methods inherited from interface org.beanio.internal.parser.Property

getName, type

Field Detail

value

protected ParserLocal<Object> value

Constructor Detail

RecordAggregation

public RecordAggregation()

Constructs a new RecordAggregation.

Method Detail

setType

public void setType(Class<?> type)

Sets the collection type.

Specified by:

setType in interface Property

Parameters:

type - Collection class type

getType

public Class<?> getType()

Specified by:

getType in interface Property

createValue

public Object createValue(ParsingContext context)

Description copied from interface: Property

Creates the property value and returns it.

Specified by:

createValue in interface Property

Parameters:

context - the ParsingContext

Returns:

the property value

getNullValue

public Object getNullValue()

createAggregationType

protected Object createAggregationType()

getValue

public Object getValue(ParsingContext context)

Description copied from interface: Parser

Returns the unmarshalled property value.

Specified by:

getValue in interface Parser

Specified by:

getValue in interface Property

Overrides:

getValue in class DelegatingParser

Parameters:

context - the ParsingContext

Returns:

the property value

clearValue

public void clearValue(ParsingContext context)

Description copied from interface: Parser

Clears the current property value.

Specified by:

clearValue in interface Parser

Specified by:

clearValue in interface Property

Overrides:

clearValue in class DelegatingParser

Parameters:

context - the ParsingContext

setValue

public void setValue(ParsingContext context,
                     Object value)

Description copied from interface: Parser

Sets the property value for marshaling.

Specified by:

setValue in interface Parser

Specified by:

setValue in interface Property

Overrides:

setValue in class DelegatingParser

Parameters:

context - the ParsingContext

value - the property value

getProperty

public Property getProperty()

Description copied from interface: Selector

Returns the Property mapped to this component, or null if there is no property mapping.

Specified by:

getProperty in interface Selector

Returns:

the Property mapped to this component

matchNext

public Selector matchNext(UnmarshallingContext context)

Description copied from interface: Selector

Finds a parser for unmarshalling a record based on the current state of the stream.

Specified by:

matchNext in interface Selector

Parameters:

context - the UnmarshallingContext

Returns:

the matched Selector for unmarshalling the record

matchAny

public Selector matchAny(UnmarshallingContext context)

Description copied from interface: Selector

Finds a parser that matches the input record. This method is invoked when Selector.matchNext(UnmarshallingContext) returns null, in order to differentiate between unexpected and unidentified record types.

Specified by:

matchAny in interface Selector

Parameters:

context - the UnmarshallingContext

Returns:

the matched Selector

matchNext

public Selector matchNext(MarshallingContext context)

Description copied from interface: Selector

Finds a parser for marshalling a bean object. If matched by this Selector, the method should set the bean object on the property tree and return itself.

Specified by:

matchNext in interface Selector

Parameters:

context - the MarshallingContext

Returns:

the matched Selector for marshalling the bean object

close

public Selector close(ParsingContext context)

Description copied from interface: Selector

Checks for any unsatisfied components before the stream is closed.

Specified by:

close in interface Selector

Parameters:

context - the ParsingContext

Returns:

the first unsatisfied node

reset

public void reset(ParsingContext context)

Description copied from interface: Selector

Resets the component count of this Selector's children.

Specified by:

reset in interface Selector

Parameters:

context - the ParsingContext

getCount

public int getCount(ParsingContext context)

Description copied from interface: Selector

Returns the number of times this component was matched within the current iteration of its parent component.

Specified by:

getCount in interface Selector

Parameters:

context - the ParsingContext

Returns:

the match count

setCount

public void setCount(ParsingContext context,
                     int count)

Description copied from interface: Selector

Sets the number of times this component was matched within the current iteration of its parent component.

Specified by:

setCount in interface Selector

Parameters:

context - the ParsingContext

count - the new match count

getOrder

public int getOrder()

Description copied from interface: Selector

Returns the order of this component (within the context of its parent).

Specified by:

getOrder in interface Selector

Returns:

the component order

isMaxOccursReached

public boolean isMaxOccursReached(ParsingContext context)

Description copied from interface: Selector

Returns whether this component has reached its maximum occurrences.

Specified by:

isMaxOccursReached in interface Selector

Parameters:

context - the ParsingContext

Returns:

true if maximum occurrences has been reached

updateState

public void updateState(ParsingContext context,
                        String namespace,
                        Map<String,Object> state)

Description copied from interface: Selector

Updates a Map with the current state of the Writer to allow for restoration at a later time.

Specified by:

updateState in interface Selector

Parameters:

context - the ParsingContext

namespace - a String to prefix all state keys with

state - the Map to update with the latest state

restoreState

public void restoreState(ParsingContext context,
                         String namespace,
                         Map<String,Object> state)
                  throws IllegalStateException

Description copied from interface: Selector

Restores a Map of previously stored state information.

Specified by:

restoreState in interface Selector

Parameters:

context - the ParsingContext

namespace - a String to prefix all state keys with

state - the Map containing the state to restore

Throws:

IllegalStateException - if the Map is missing any state information

getMinOccurs

public int getMinOccurs()

Description copied from interface: Selector

Returns the minimum number of occurrences of this component (within the context of its parent).

Specified by:

getMinOccurs in interface Selector

Returns:

the minimum occurrences

getMaxOccurs

public int getMaxOccurs()

Description copied from interface: Selector

Returns the maximum number of occurrences of this component (within the context of its parent).

Specified by:

getMaxOccurs in interface Selector

Returns:

the maximum occurrences

isSupportedChild

protected boolean isSupportedChild(Component child)

Description copied from class: TreeNode

Returns whether a node is a supported child of this node. Called by TreeNode.add(TreeNode).

Overrides:

isSupportedChild in class ParserComponent

Parameters:

child - the node to test

Returns:

true if the child is allowed

getSelector

public Selector getSelector()

Returns the child selector.

Returns:

the child Selector

getAccessor

public PropertyAccessor getAccessor()

Specified by:

getAccessor in interface Property

setAccessor

public void setAccessor(PropertyAccessor accessor)

Specified by:

setAccessor in interface Property

defines

public boolean defines(Object value)

Specified by:

defines in interface Property

setIdentifier

public void setIdentifier(boolean identifier)

Specified by:

setIdentifier in interface Property

isIdentifier

public boolean isIdentifier()

Description copied from interface: Parser

Returns whether this parser or any descendant of this parser is used to identify a record during unmarshalling.

Specified by:

isIdentifier in interface Parser

Specified by:

isIdentifier in interface Property

Overrides:

isIdentifier in class DelegatingParser

Returns:

true if this parser or any descendant is used to identify a record

registerLocals

public void registerLocals(Set<ParserLocal<? extends Object>> locals)

Description copied from class: Component

Called by a stream to register variables stored in the parsing context. This method should be overridden by subclasses that need to register one or more parser context variables.

Overrides:

registerLocals in class Component

Parameters:

locals - set of local variables

skip

public void skip(UnmarshallingContext context)

Description copied from interface: Selector

Skips a record or group of records.

Specified by:

skip in interface Selector

Parameters:

context - the UnmarshallingContext

isRecordGroup

public boolean isRecordGroup()

Description copied from interface: Selector

Returns whether this component is a record group.

Specified by:

isRecordGroup in interface Selector

Returns:

true if this component is a record group, false otherwise