com.ibm.cloud.objectstorage.thirdparty.ion.impl.lite.TopLevelContext Maven / Gradle / Ivy
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/*
* Copyright 2007-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package software.amazon.ion.impl.lite;
import software.amazon.ion.SymbolTable;
/**
* Context for child values of an IonDatagramLite. The
* datagram's child values that share the same local symbol table
* will share the same TopLevelContext.
*/
final class TopLevelContext
implements IonContext
{
/**
* References the containing datagram
*/
private final IonDatagramLite _datagram;
/**
* This will be a local symbol table, or null. It is not valid
* for this to be a shared symbol table since shared
* symbol tables are only shared. It will not be a
* system symbol table as the system object will be
* able to resolve its symbol table to the system
* symbol table and following the parent/owning_context
* chain will lead to a system object.
*
* TODO amzn/ion-java/issues/19 we cannot assume that the IonSystem knows the proper IVM
* in this context
*/
private final SymbolTable _symbols;
private TopLevelContext(SymbolTable symbols, IonDatagramLite datagram)
{
assert datagram != null;
_symbols = symbols;
_datagram = datagram;
}
static TopLevelContext wrap(SymbolTable symbols,
IonDatagramLite datagram)
{
TopLevelContext context = new TopLevelContext(symbols, datagram);
return context;
}
public IonDatagramLite getContextContainer()
{
return _datagram;
}
public SymbolTable getContextSymbolTable()
{
return _symbols;
}
public IonSystemLite getSystem()
{
return _datagram.getSystem();
}
}