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• source code
• BuilderBasedDeserializer.java

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com.fasterxml.jackson.databind.deser.BuilderBasedDeserializer Maven / Gradle / Ivy

package com.fasterxml.jackson.databind.deser;

import java.io.IOException;
import java.util.*;

import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.cfg.CoercionAction;
import com.fasterxml.jackson.databind.deser.impl.*;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.util.ClassUtil;
import com.fasterxml.jackson.databind.util.IgnorePropertiesUtil;
import com.fasterxml.jackson.databind.util.NameTransformer;
import com.fasterxml.jackson.databind.util.TokenBuffer;

/**
 * Class that handles deserialization using a separate
 * Builder class, which is used for data binding and
 * produces actual deserialized value at the end
 * of data binding.
 *

 * Note on implementation: much of code has been copied from
 * {@link BeanDeserializer}; there may be opportunities to
 * refactor this in future.
 */
public class BuilderBasedDeserializer
    extends BeanDeserializerBase
{
    private static final long serialVersionUID = 1L;

    protected final AnnotatedMethod _buildMethod;

    /**
     * Type that the builder will produce, target type; as opposed to
     * `handledType()` which refers to Builder class.
     *
     * @since 2.9
     */
    protected final JavaType _targetType;

    /*
    /**********************************************************
    /* Life-cycle, construction, initialization
    /**********************************************************
     */

    /**
     * Constructor used by {@link BeanDeserializerBuilder}.
     */
    public BuilderBasedDeserializer(BeanDeserializerBuilder builder,
            BeanDescription beanDesc, JavaType targetType,
            BeanPropertyMap properties, Map backRefs,
            Set ignorableProps, boolean ignoreAllUnknown,
            boolean hasViews)
    {
        this(builder, beanDesc, targetType, properties, backRefs, ignorableProps, ignoreAllUnknown, null, hasViews);
    }

    /**
     * @since 2.12
     */
    public BuilderBasedDeserializer(BeanDeserializerBuilder builder,
                                    BeanDescription beanDesc, JavaType targetType,
                                    BeanPropertyMap properties, Map backRefs,
                                    Set ignorableProps, boolean ignoreAllUnknown, Set includableProps,
                                    boolean hasViews)
    {
        super(builder, beanDesc, properties, backRefs,
                ignorableProps, ignoreAllUnknown, includableProps, hasViews);
        _targetType = targetType;
        _buildMethod = builder.getBuildMethod();
        // 05-Mar-2012, tatu: Cannot really make Object Ids work with builders, not yet anyway
        if (_objectIdReader != null) {
            throw new IllegalArgumentException("Cannot use Object Id with Builder-based deserialization (type "
                    +beanDesc.getType()+")");
        }
    }

    /**
     * @deprecated Since 2.9
     */
    @Deprecated
    public BuilderBasedDeserializer(BeanDeserializerBuilder builder,
            BeanDescription beanDesc,
            BeanPropertyMap properties, Map backRefs,
            Set ignorableProps, boolean ignoreAllUnknown,
            boolean hasViews)
    {
        this(builder, beanDesc,
                beanDesc.getType(), // Wrong! But got no access via `BeanDeserializerBuilder`
                properties, backRefs, ignorableProps, ignoreAllUnknown, hasViews);
    }

    /**
     * Copy-constructor that can be used by sub-classes to allow
     * copy-on-write styling copying of settings of an existing instance.
     */
    protected BuilderBasedDeserializer(BuilderBasedDeserializer src)
    {
        this(src, src._ignoreAllUnknown);
    }

    protected BuilderBasedDeserializer(BuilderBasedDeserializer src, boolean ignoreAllUnknown)
    {
        super(src, ignoreAllUnknown);
        _buildMethod = src._buildMethod;
        _targetType = src._targetType;
    }

    protected BuilderBasedDeserializer(BuilderBasedDeserializer src, NameTransformer unwrapper) {
        super(src, unwrapper);
        _buildMethod = src._buildMethod;
        _targetType = src._targetType;
    }

    public BuilderBasedDeserializer(BuilderBasedDeserializer src, ObjectIdReader oir) {
        super(src, oir);
        _buildMethod = src._buildMethod;
        _targetType = src._targetType;
    }

    public BuilderBasedDeserializer(BuilderBasedDeserializer src, Set ignorableProps) {
        this(src, ignorableProps, src._includableProps);
    }

    public BuilderBasedDeserializer(BuilderBasedDeserializer src, Set ignorableProps, Set includableProps) {
        super(src, ignorableProps, includableProps);
        _buildMethod = src._buildMethod;
        _targetType = src._targetType;
    }

    public BuilderBasedDeserializer(BuilderBasedDeserializer src, BeanPropertyMap props) {
        super(src, props);
        _buildMethod = src._buildMethod;
        _targetType = src._targetType;
    }

    @Override
    public JsonDeserializer