Top Description Fields Constructors Methods
com.amazon.ion.impl

pack-priv Class SymbolTableStructCache

extends Object
Class Inheritance
Imports
com.amazon.ion.IonList, .IonStruct, .IonType, .IonValue, .SymbolTable, .ValueFactory, java.util.Iterator
Caches the IonStruct representation of a SymbolTable.

Field Summary

Modifier and TypeField and Description
private final int
firstLocalSid

private IonStruct
image

Memoized result of getIonRepresentation(ValueFactory); Once this is created, it may be mutated as symbols are added using addSymbol(String, int).

private final SymbolTable[]
importedTables

private final SymbolTable
symbolTable

Constructor Summary

AccessConstructor and Description
pack-priv
SymbolTableStructCache(SymbolTable
the SymbolTable to represent as an IonStruct.
symbolTable, SymbolTable[]
the symbol table's imported shared symbol tables.
importedTables, IonStruct
the IonStruct representation, if available. If null, an IonStruct will be created lazily.
image)

Method Summary

Modifier and TypeMethod and Description
pack-priv void
addSymbol(String
can be null when there's a gap in the local symbols list.
symbolName, int
the symbol ID to assign to the new symbol.
sid)

Adds a new symbol table with the given symbol ID to the IonStruct's 'symbols' list.

public IonStruct

Returns:

an IonStruct representing the symbol table.
getIonRepresentation(ValueFactory
the ValueFactory from which to construct the IonStruct.
factory)

Returns the IonStruct representation of the symbol table.

public boolean

Returns:

true if an IonStruct has already been created for the symbol table; otherwise, false.
hasStruct()

private void
makeIonRepresentation(ValueFactory
the ValueFactory from which to construct the IonStruct.
factory)

Create a new IonStruct representation of the symbol table.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

firstLocalSidback to summary
private final int firstLocalSid
imageback to summary
private IonStruct image

Memoized result of getIonRepresentation(ValueFactory); Once this is created, it may be mutated as symbols are added using addSymbol(String, int).

importedTablesback to summary
private final SymbolTable[] importedTables
symbolTableback to summary
private final SymbolTable symbolTable

Constructor Detail

SymbolTableStructCacheback to summary
pack-priv SymbolTableStructCache(SymbolTable symbolTable, SymbolTable[] importedTables, IonStruct image)
Parameters
symbolTable:SymbolTable

the SymbolTable to represent as an IonStruct.

importedTables:SymbolTable[]

the symbol table's imported shared symbol tables.

image:IonStruct

the IonStruct representation, if available. If null, an IonStruct will be created lazily.

Method Detail

addSymbolback to summary
pack-priv void addSymbol(String symbolName, int sid)

Adds a new symbol table with the given symbol ID to the IonStruct's 'symbols' list.

Parameters
symbolName:String

can be null when there's a gap in the local symbols list.

sid:int

the symbol ID to assign to the new symbol.

getIonRepresentationback to summary
public IonStruct getIonRepresentation(ValueFactory factory)

Returns the IonStruct representation of the symbol table. Creates and stores a new IonStruct on the first invocation.

Parameters
factory:ValueFactory

the ValueFactory from which to construct the IonStruct.

Returns:IonStruct

an IonStruct representing the symbol table.

hasStructback to summary
public boolean hasStruct()
Returns:boolean

true if an IonStruct has already been created for the symbol table; otherwise, false.

makeIonRepresentationback to summary
private void makeIonRepresentation(ValueFactory factory)

Create a new IonStruct representation of the symbol table.

Parameters
factory:ValueFactory

the ValueFactory from which to construct the IonStruct.