org.codehaus.jackson.map.deser.PropertyValueBuffer Maven / Gradle / Ivy
package org.codehaus.jackson.map.deser;
import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.map.DeserializationContext;
/**
* Simple container used for temporarily buffering a set of
* {@link PropertyValue}s.
* Using during construction of beans (and Maps) that use Creators,
* and hence need buffering before instance (that will have properties
* to assign values to) is constructed.
*/
public final class PropertyValueBuffer
{
final JsonParser _parser;
final DeserializationContext _context;
/**
* Buffer used for storing creator parameters for constructing
* instance
*/
final Object[] _creatorParameters;
/**
* Number of creator parameters we are still missing.
*
* NOTE: assumes there are no duplicates, for now.
*/
private int _paramsNeeded;
/**
* If we get non-creator parameters before or between
* creator parameters, those need to be buffered. Buffer
* is just a simple linked list
*/
private PropertyValue _buffered;
public PropertyValueBuffer(JsonParser jp, DeserializationContext ctxt,
int paramCount)
{
_parser = jp;
_context = ctxt;
_paramsNeeded = paramCount;
_creatorParameters = new Object[paramCount];
}
protected final Object[] getParameters() { return _creatorParameters; }
protected PropertyValue buffered() { return _buffered; }
/**
* @return True if we have received all creator parameters
*/
public boolean assignParameter(int index, Object value) {
_creatorParameters[index] = value;
return --_paramsNeeded <= 0;
}
public void bufferProperty(SettableBeanProperty prop, Object value) {
_buffered = new PropertyValue.Regular(_buffered, value, prop);
}
public void bufferAnyProperty(SettableAnyProperty prop, String propName, Object value) {
_buffered = new PropertyValue.Any(_buffered, value, prop, propName);
}
public void bufferMapProperty(Object key, Object value) {
_buffered = new PropertyValue.Map(_buffered, value, key);
}
}