package com.fasterxml.jackson.databind;

import java.util.*;

import com.fasterxml.jackson.core.*;

import com.fasterxml.jackson.databind.cfg.*;
import com.fasterxml.jackson.databind.deser.DeserializationProblemHandler;
import com.fasterxml.jackson.databind.introspect.*;
import com.fasterxml.jackson.databind.jsontype.*;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import com.fasterxml.jackson.databind.util.LinkedNode;
import com.fasterxml.jackson.databind.util.RootNameLookup;

Object that contains baseline configuration for deserialization process. An instance is owned by ObjectMapper, which passes an immutable instance to be used for deserialization process. 

Note that instances are considered immutable and as such no copies
should need to be created for sharing; all copying is done with
"fluent factory" methods.
/**
 * Object that contains baseline configuration for deserialization
 * process. An instance is owned by {@link ObjectMapper}, which
 * passes an immutable instance to be used for deserialization process.
 *<p>
 * Note that instances are considered immutable and as such no copies
 * should need to be created for sharing; all copying is done with
 * "fluent factory" methods.
 */
public final class DeserializationConfig
    extends MapperConfigBase<DeserializationFeature, DeserializationConfig>
    implements java.io.Serializable // since 2.1
{
    // since 2.9
    private static final long serialVersionUID = 2;

    /*
    /**********************************************************
    /* Configured helper objects
    /**********************************************************
     */

    
Linked list that contains all registered problem handlers.
Implementation as front-added linked list allows for sharing
of the list (tail) without copying the list.
/**
     * Linked list that contains all registered problem handlers.
     * Implementation as front-added linked list allows for sharing
     * of the list (tail) without copying the list.
     */
    protected final LinkedNode<DeserializationProblemHandler> _problemHandlers;

    
Factory used for constructing JsonNode instances. /**
     * Factory used for constructing {@link com.fasterxml.jackson.databind.JsonNode} instances.
     */
    protected final JsonNodeFactory _nodeFactory;

    /*
    /**********************************************************
    /* Deserialization features 
    /**********************************************************
     */

    
Set of DeserializationFeatures enabled. /**
     * Set of {@link DeserializationFeature}s enabled.
     */
    protected final int _deserFeatures;

    /*
    /**********************************************************
    /* Parser features: generic, format-specific
    /**********************************************************
     */

    
States of Features to enable/disable. /**
     * States of {@link com.fasterxml.jackson.core.JsonParser.Feature}s to enable/disable.
     */
    protected final int _parserFeatures;

    
Bitflag of Features to enable/disable /**
     * Bitflag of {@link com.fasterxml.jackson.core.JsonParser.Feature}s to enable/disable
     */
    protected final int _parserFeaturesToChange;

    
States of FormatFeatures to enable/disable. 
Since:
2.7/**
     * States of {@link com.fasterxml.jackson.core.FormatFeature}s to enable/disable.
     *
     * @since 2.7
     */
    protected final int _formatReadFeatures;

    
Bitflag of FormatFeatures to enable/disable 
Since:
2.7/**
     * Bitflag of {@link com.fasterxml.jackson.core.FormatFeature}s to enable/disable
     *
     * @since 2.7
     */
    protected final int _formatReadFeaturesToChange;

    /*
    /**********************************************************
    /* Life-cycle, primary constructors for new instances
    /**********************************************************
     */

    
Constructor used by ObjectMapper to create default configuration object instance.
/**
     * Constructor used by ObjectMapper to create default configuration object instance.
     */
    public DeserializationConfig(BaseSettings base,
            SubtypeResolver str, SimpleMixInResolver mixins, RootNameLookup rootNames,
            ConfigOverrides configOverrides)
    {
        super(base, str, mixins, rootNames, configOverrides);
        _deserFeatures = collectFeatureDefaults(DeserializationFeature.class);
        _nodeFactory = JsonNodeFactory.instance;
        _problemHandlers = null;
        _parserFeatures = 0;
        _parserFeaturesToChange = 0;
        _formatReadFeatures = 0;
        _formatReadFeaturesToChange = 0;
    }

    
Copy-constructor used for making a copy used by new ObjectMapper. 
Since:
2.9/**
     * Copy-constructor used for making a copy used by new {@link ObjectMapper}.
     *
     * @since 2.9
     */
    protected DeserializationConfig(DeserializationConfig src,
            SimpleMixInResolver mixins, RootNameLookup rootNames,
            ConfigOverrides configOverrides)
    {
        super(src, mixins, rootNames, configOverrides);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    /*
    /**********************************************************
    /* Life-cycle, secondary constructors to support
    /* "mutant factories", with single property changes
    /**********************************************************
     */

    private DeserializationConfig(DeserializationConfig src,
            int mapperFeatures, int deserFeatures,
            int parserFeatures, int parserFeatureMask,
            int formatFeatures, int formatFeatureMask)
    {
        super(src, mapperFeatures);
        _deserFeatures = deserFeatures;
        _nodeFactory = src._nodeFactory;
        _problemHandlers = src._problemHandlers;
        _parserFeatures = parserFeatures;
        _parserFeaturesToChange = parserFeatureMask;
        _formatReadFeatures = formatFeatures;
        _formatReadFeaturesToChange = formatFeatureMask;
    }
    
    
Copy constructor used to create a non-shared instance with given mix-in
annotation definitions and subtype resolver.
/**
     * Copy constructor used to create a non-shared instance with given mix-in
     * annotation definitions and subtype resolver.
     */
    private DeserializationConfig(DeserializationConfig src, SubtypeResolver str)
    {
        super(src, str);
        _deserFeatures = src._deserFeatures;
        _nodeFactory = src._nodeFactory;
        _problemHandlers = src._problemHandlers;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    private DeserializationConfig(DeserializationConfig src, BaseSettings base)
    {
        super(src, base);
        _deserFeatures = src._deserFeatures;
        _nodeFactory = src._nodeFactory;
        _problemHandlers = src._problemHandlers;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }
    
    private DeserializationConfig(DeserializationConfig src, JsonNodeFactory f)
    {
        super(src);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = f;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    private DeserializationConfig(DeserializationConfig src,
            LinkedNode<DeserializationProblemHandler> problemHandlers)
    {
        super(src);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    private DeserializationConfig(DeserializationConfig src, PropertyName rootName)
    {
        super(src, rootName);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    private DeserializationConfig(DeserializationConfig src, Class<?> view)
    {
        super(src, view);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    protected DeserializationConfig(DeserializationConfig src, ContextAttributes attrs)
    {
        super(src, attrs);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    protected DeserializationConfig(DeserializationConfig src, SimpleMixInResolver mixins)
    {
        super(src, mixins);
        _deserFeatures = src._deserFeatures;
        _problemHandlers = src._problemHandlers;
        _nodeFactory = src._nodeFactory;
        _parserFeatures = src._parserFeatures;
        _parserFeaturesToChange = src._parserFeaturesToChange;
        _formatReadFeatures = src._formatReadFeatures;
        _formatReadFeaturesToChange = src._formatReadFeaturesToChange;
    }

    // for unit tests only:
    protected BaseSettings getBaseSettings() { return _base; }

    /*
    /**********************************************************
    /* Life-cycle, general factory methods from MapperConfig(Base)
    /**********************************************************
     */

    @Override // since 2.9
    protected final DeserializationConfig _withBase(BaseSettings newBase) {
        return (_base == newBase) ? this : new DeserializationConfig(this, newBase);
    }

    @Override // since 2.9
    protected final DeserializationConfig _withMapperFeatures(int mapperFeatures) {
        return new DeserializationConfig(this, mapperFeatures, _deserFeatures,
                        _parserFeatures, _parserFeaturesToChange,
                        _formatReadFeatures, _formatReadFeaturesToChange);
    }

    /*
    /**********************************************************
    /* Life-cycle, specific factory methods from MapperConfig
    /**********************************************************
     */

    @Override
    public DeserializationConfig with(SubtypeResolver str) {
        return (_subtypeResolver == str) ? this : new DeserializationConfig(this, str);
    }

    @Override
    public DeserializationConfig withRootName(PropertyName rootName) {
        if (rootName == null) {
            if (_rootName == null) {
                return this;
            }
        } else if (rootName.equals(_rootName)) {
            return this;
        }
        return new DeserializationConfig(this, rootName);
    }

    @Override
    public DeserializationConfig withView(Class<?> view) {
        return (_view == view) ? this : new DeserializationConfig(this, view);
    }

    @Override
    public DeserializationConfig with(ContextAttributes attrs) {
        return (attrs == _attributes) ? this : new DeserializationConfig(this, attrs);
    }

    /*
    /**********************************************************
    /* Life-cycle, DeserializationFeature-based factory methods
    /**********************************************************
     */

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     */
    public DeserializationConfig with(DeserializationFeature feature)
    {
        int newDeserFeatures = (_deserFeatures | feature.getMask());
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     */
    public DeserializationConfig with(DeserializationFeature first,
            DeserializationFeature... features)
    {
        int newDeserFeatures = _deserFeatures | first.getMask();
        for (DeserializationFeature f : features) {
            newDeserFeatures |= f.getMask();
        }
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     */
    public DeserializationConfig withFeatures(DeserializationFeature... features)
    {
        int newDeserFeatures = _deserFeatures;
        for (DeserializationFeature f : features) {
            newDeserFeatures |= f.getMask();
        }
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }
    
    
Fluent factory method that will construct and return a new configuration
object instance with specified feature disabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified feature disabled.
     */
    public DeserializationConfig without(DeserializationFeature feature)
    {
        int newDeserFeatures = _deserFeatures & ~feature.getMask();
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features disabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features disabled.
     */
    public DeserializationConfig without(DeserializationFeature first,
            DeserializationFeature... features)
    {
        int newDeserFeatures = _deserFeatures & ~first.getMask();
        for (DeserializationFeature f : features) {
            newDeserFeatures &= ~f.getMask();
        }
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features disabled.
/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features disabled.
     */
    public DeserializationConfig withoutFeatures(DeserializationFeature... features)
    {
        int newDeserFeatures = _deserFeatures;
        for (DeserializationFeature f : features) {
            newDeserFeatures &= ~f.getMask();
        }
        return (newDeserFeatures == _deserFeatures) ? this :
            new DeserializationConfig(this, _mapperFeatures, newDeserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    /*
    /**********************************************************
    /* Life-cycle, JsonParser.Feature-based factory methods
    /**********************************************************
     */

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
Since:
2.5/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     *
     * @since 2.5
     */
    public DeserializationConfig with(JsonParser.Feature feature)
    {
        int newSet = _parserFeatures | feature.getMask();
        int newMask = _parserFeaturesToChange | feature.getMask();
        return ((_parserFeatures == newSet) && (_parserFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    newSet, newMask,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
Since:
2.5/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     *
     * @since 2.5
     */
    public DeserializationConfig withFeatures(JsonParser.Feature... features)
    {
        int newSet = _parserFeatures;
        int newMask = _parserFeaturesToChange;
        for (JsonParser.Feature f : features) {
            int mask = f.getMask();
            newSet |= mask;
            newMask |= mask;
        }
        return ((_parserFeatures == newSet) && (_parserFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    newSet, newMask,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }
    
    
Fluent factory method that will construct and return a new configuration
object instance with specified feature disabled.
Since:
2.5/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified feature disabled.
     *
     * @since 2.5
     */
    public DeserializationConfig without(JsonParser.Feature feature)
    {
        int newSet = _parserFeatures & ~feature.getMask();
        int newMask = _parserFeaturesToChange | feature.getMask();
        return ((_parserFeatures == newSet) && (_parserFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    newSet, newMask,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features disabled.
Since:
2.5/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features disabled.
     *
     * @since 2.5
     */
    public DeserializationConfig withoutFeatures(JsonParser.Feature... features)
    {
        int newSet = _parserFeatures;
        int newMask = _parserFeaturesToChange;
        for (JsonParser.Feature f : features) {
            int mask = f.getMask();
            newSet &= ~mask;
            newMask |= mask;
        }
        return ((_parserFeatures == newSet) && (_parserFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    newSet, newMask,
                    _formatReadFeatures, _formatReadFeaturesToChange);
    }

    /*
    /**********************************************************
    /* Life-cycle, JsonParser.FormatFeature-based factory methods
    /**********************************************************
     */

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
Since:
2.7/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     *
     * @since 2.7
     */
    public DeserializationConfig with(FormatFeature feature)
    {
        int newSet = _formatReadFeatures | feature.getMask();
        int newMask = _formatReadFeaturesToChange | feature.getMask();
        return ((_formatReadFeatures == newSet) && (_formatReadFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    newSet, newMask);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features enabled.
Since:
2.7/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features enabled.
     *
     * @since 2.7
     */
    public DeserializationConfig withFeatures(FormatFeature... features)
    {
        int newSet = _formatReadFeatures;
        int newMask = _formatReadFeaturesToChange;
        for (FormatFeature f : features) {
            int mask = f.getMask();
            newSet |= mask;
            newMask |= mask;
        }
        return ((_formatReadFeatures == newSet) && (_formatReadFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    newSet, newMask);
    }
    
    
Fluent factory method that will construct and return a new configuration
object instance with specified feature disabled.
Since:
2.7/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified feature disabled.
     *
     * @since 2.7
     */
    public DeserializationConfig without(FormatFeature feature)
    {
        int newSet = _formatReadFeatures & ~feature.getMask();
        int newMask = _formatReadFeaturesToChange | feature.getMask();
        return ((_formatReadFeatures == newSet) && (_formatReadFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    newSet, newMask);
    }

    
Fluent factory method that will construct and return a new configuration
object instance with specified features disabled.
Since:
2.7/**
     * Fluent factory method that will construct and return a new configuration
     * object instance with specified features disabled.
     *
     * @since 2.7
     */
    public DeserializationConfig withoutFeatures(FormatFeature... features)
    {
        int newSet = _formatReadFeatures;
        int newMask = _formatReadFeaturesToChange;
        for (FormatFeature f : features) {
            int mask = f.getMask();
            newSet &= ~mask;
            newMask |= mask;
        }
        return ((_formatReadFeatures == newSet) && (_formatReadFeaturesToChange == newMask)) ? this :
            new DeserializationConfig(this,  _mapperFeatures, _deserFeatures,
                    _parserFeatures, _parserFeaturesToChange,
                    newSet, newMask);
    }    

    /*
    /**********************************************************
    /* Life-cycle, deserialization-specific factory methods
    /**********************************************************
     */

    
Fluent factory method that will construct a new instance with specified JsonNodeFactory /**
     * Fluent factory method that will construct a new instance with
     * specified {@link JsonNodeFactory}
     */
    public DeserializationConfig with(JsonNodeFactory f) {
        if (_nodeFactory == f) {
            return this;
        }
        return new DeserializationConfig(this, f);
    }

    
Method that can be used to add a handler that can (try to)
resolve non-fatal deserialization problems.
/**
     * Method that can be used to add a handler that can (try to)
     * resolve non-fatal deserialization problems.
     */
    public DeserializationConfig withHandler(DeserializationProblemHandler h)
    {
        // Sanity check: let's prevent adding same handler multiple times
        if (LinkedNode.contains(_problemHandlers, h)) {
            return this;
        }
        return new DeserializationConfig(this,
                new LinkedNode<DeserializationProblemHandler>(h, _problemHandlers));
    }

    
Method for removing all configured problem handlers; usually done to replace
existing handler(s) with different one(s)
/**
     * Method for removing all configured problem handlers; usually done to replace
     * existing handler(s) with different one(s)
     */
    public DeserializationConfig withNoProblemHandlers() {
        if (_problemHandlers == null) {
            return this;
        }
        return new DeserializationConfig(this,
                (LinkedNode<DeserializationProblemHandler>) null);
    }

    /*
    /**********************************************************
    /* JsonParser initialization
    /**********************************************************
     */

    
Method called by ObjectMapper and ObjectReader to modify those Feature settings that have been configured via this config instance. 
Since:
2.5/**
     * Method called by {@link ObjectMapper} and {@link ObjectReader}
     * to modify those {@link com.fasterxml.jackson.core.JsonParser.Feature} settings
     * that have been configured via this config instance.
     * 
     * @since 2.5
     */
    public void initialize(JsonParser p) {
        if (_parserFeaturesToChange != 0) {
            p.overrideStdFeatures(_parserFeatures, _parserFeaturesToChange);
        }
        if (_formatReadFeaturesToChange != 0) {
            p.overrideFormatFeatures(_formatReadFeatures, _formatReadFeaturesToChange);
        }
    }

    /*
    /**********************************************************
    /* MapperConfig implementation/overrides: other
    /**********************************************************
     */

    @Override
    public boolean useRootWrapping()
    {
        if (_rootName != null) { // empty String disables wrapping; non-empty enables
            return !_rootName.isEmpty();
        }
        return isEnabled(DeserializationFeature.UNWRAP_ROOT_VALUE);
    }

    public final boolean isEnabled(DeserializationFeature f) {
        return (_deserFeatures & f.getMask()) != 0;
    }

    public final boolean isEnabled(JsonParser.Feature f, JsonFactory factory) {
        int mask = f.getMask();
        if ((_parserFeaturesToChange & mask) != 0) {
            return (_parserFeatures & f.getMask()) != 0;
        }
        return factory.isEnabled(f);
    }

    
Bulk access method for checking that all features specified by
mask are enabled.
Since:
2.3/**
     * Bulk access method for checking that all features specified by
     * mask are enabled.
     * 
     * @since 2.3
     */
    public final boolean hasDeserializationFeatures(int featureMask) {
        return (_deserFeatures & featureMask) == featureMask;
    }

    
Bulk access method for checking that at least one of features specified by
mask is enabled.
Since:
2.6/**
     * Bulk access method for checking that at least one of features specified by
     * mask is enabled.
     * 
     * @since 2.6
     */
    public final boolean hasSomeOfFeatures(int featureMask) {
        return (_deserFeatures & featureMask) != 0;
    }

    
Bulk access method for getting the bit mask of all DeserializationFeatures that are enabled. /**
     * Bulk access method for getting the bit mask of all {@link DeserializationFeature}s
     * that are enabled.
     */
    public final int getDeserializationFeatures() {
        return _deserFeatures;
    }

    
Convenience method equivalant to:

  isEnabled(DeserializationFeature.FAIL_ON_TRAILING_TOKENS)

Since:
2.9/**
     * Convenience method equivalant to:
     *<code>
     *   isEnabled(DeserializationFeature.FAIL_ON_TRAILING_TOKENS)
     *</code>
     *
     * @since 2.9
     */
    public final boolean requiresFullValue() {
        return DeserializationFeature.FAIL_ON_TRAILING_TOKENS.enabledIn(_deserFeatures);
    }

    /*
    /**********************************************************
    /* Other configuration
    /**********************************************************
     */

    
Method for getting head of the problem handler chain. May be null,
if no handlers have been added.
/**
     * Method for getting head of the problem handler chain. May be null,
     * if no handlers have been added.
     */
    public LinkedNode<DeserializationProblemHandler> getProblemHandlers() {
        return _problemHandlers;
    }

    public final JsonNodeFactory getNodeFactory() {
        return _nodeFactory;
    }

    /*
    /**********************************************************
    /* Introspection methods
    /**********************************************************
     */

    
Method that will introspect full bean properties for the purpose
of building a bean deserializer
Params:
type – Type of class to be introspected/**
     * Method that will introspect full bean properties for the purpose
     * of building a bean deserializer
     *
     * @param type Type of class to be introspected
     */
    @SuppressWarnings("unchecked")
    public <T extends BeanDescription> T introspect(JavaType type) {
        return (T) getClassIntrospector().forDeserialization(this, type, this);
    }

    
Method that will introspect subset of bean properties needed to
construct bean instance.
/**
     * Method that will introspect subset of bean properties needed to
     * construct bean instance.
     */
    @SuppressWarnings("unchecked")
    public <T extends BeanDescription> T introspectForCreation(JavaType type) {
        return (T) getClassIntrospector().forCreation(this, type, this);
    }

    
Since:
2.0/**
     * @since 2.0
     */
    @SuppressWarnings("unchecked")
    public <T extends BeanDescription> T introspectForBuilder(JavaType type) {
        return (T) getClassIntrospector().forDeserializationWithBuilder(this, type, this);
    }

    /*
    /**********************************************************
    /* Support for polymorphic type handling
    /**********************************************************
     */
    
    
Helper method that is needed to properly handle polymorphic referenced types, such as types referenced by AtomicReference, or various "optional" types. 
Since:
2.4/**
     * Helper method that is needed to properly handle polymorphic referenced
     * types, such as types referenced by {@link java.util.concurrent.atomic.AtomicReference},
     * or various "optional" types.
     * 
     * @since 2.4
     */
    public TypeDeserializer findTypeDeserializer(JavaType baseType)
        throws JsonMappingException
    {
        BeanDescription bean = introspectClassAnnotations(baseType.getRawClass());
        AnnotatedClass ac = bean.getClassInfo();
        TypeResolverBuilder<?> b = getAnnotationIntrospector().findTypeResolver(this, ac, baseType);

        /* Ok: if there is no explicit type info handler, we may want to
         * use a default. If so, config object knows what to use.
         */
        Collection<NamedType> subtypes = null;
        if (b == null) {
            b = getDefaultTyper(baseType);
            if (b == null) {
                return null;
            }
        } else {
            subtypes = getSubtypeResolver().collectAndResolveSubtypesByTypeId(this, ac);
        }
        return b.buildTypeDeserializer(this, baseType, subtypes);
    }
}