Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

Jackson Databind Source Code files are provided in the source packge (jackson-databind-2.14.0-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Databind Source Code below:

⏎ com/fasterxml/jackson/databind/cfg/ConfigOverrides.java

package com.fasterxml.jackson.databind.cfg;

import java.util.*;

import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonSetter;
import com.fasterxml.jackson.databind.introspect.VisibilityChecker;

/**
 * Container for individual {@link ConfigOverride} values.
 * 
 * @since 2.8
 */
public class ConfigOverrides
    implements java.io.Serializable
{
    private static final long serialVersionUID = 1L;

    /**
     * Per-type override definitions
     */
    protected Map<Class<?>, MutableConfigOverride> _overrides;

    // // // Global defaulting

    /**
     * @since 2.9
     */
    protected JsonInclude.Value _defaultInclusion;

    /**
     * @since 2.9
     */
    protected JsonSetter.Value _defaultSetterInfo;

    /**
     * @since 2.9
     */
    protected VisibilityChecker<?> _visibilityChecker;

    /**
     * @since 2.9
     */
    protected Boolean _defaultMergeable;

    /**
     * Global default setting (if any) for leniency: if disabled ({link Boolean#TRUE}),
     * "strict" (not lenient): default setting if absence of value is considered "lenient"
     * in Jackson 2.x. Default setting may be overridden by per-type and per-property
     * settings.
     *
     * @since 2.10
     */
    protected Boolean _defaultLeniency;

    /*
    /**********************************************************************
    /* Life cycle
    /**********************************************************************
     */

    public ConfigOverrides() {
        this(null,
                // !!! TODO: change to (ALWAYS, ALWAYS)?
                JsonInclude.Value.empty(),
                JsonSetter.Value.empty(),
                VisibilityChecker.Std.defaultInstance(),
                null, null
        );
    }

    /**
     * @since 2.10
     */
    protected ConfigOverrides(Map<Class<?>, MutableConfigOverride> overrides,
            JsonInclude.Value defIncl, JsonSetter.Value defSetter,
            VisibilityChecker<?> defVisibility, Boolean defMergeable, Boolean defLeniency)
    {
        _overrides = overrides;
        _defaultInclusion = defIncl;
        _defaultSetterInfo = defSetter;
        _visibilityChecker = defVisibility;
        _defaultMergeable = defMergeable;
        _defaultLeniency = defLeniency;
    }

    /**
     * @deprecated Since 2.10
     */
    @Deprecated // since 2.10
    protected ConfigOverrides(Map<Class<?>, MutableConfigOverride> overrides,
            JsonInclude.Value defIncl, JsonSetter.Value defSetter,
            VisibilityChecker<?> defVisibility, Boolean defMergeable) {
        this(overrides, defIncl, defSetter, defVisibility, defMergeable, null);
    }
    
    public ConfigOverrides copy()
    {
        Map<Class<?>, MutableConfigOverride> newOverrides;
        if (_overrides == null) {
            newOverrides = null;
        } else {
            newOverrides = _newMap();
            for (Map.Entry<Class<?>, MutableConfigOverride> entry : _overrides.entrySet()) {
                newOverrides.put(entry.getKey(), entry.getValue().copy());
            }
        }
        return new ConfigOverrides(newOverrides,
                _defaultInclusion, _defaultSetterInfo, _visibilityChecker,
                _defaultMergeable, _defaultLeniency);
    }

    /*
    /**********************************************************************
    /* Per-type override access
    /**********************************************************************
     */

    public ConfigOverride findOverride(Class<?> type) {
        if (_overrides == null) {
            return null;
        }
        return _overrides.get(type);
    }

    public MutableConfigOverride findOrCreateOverride(Class<?> type) {
        if (_overrides == null) {
            _overrides = _newMap();
        }
        MutableConfigOverride override = _overrides.get(type);
        if (override == null) {
            override = new MutableConfigOverride();
            _overrides.put(type, override);
        }
        return override;
    }

    /**
     * Specific accessor for finding {code JsonFormat.Value} for given type,
     * considering global default for leniency as well as per-type format
     * override (if any).
     *
     * @return Default format settings for type; never null.
     *
     * @since 2.10
     */
    public JsonFormat.Value findFormatDefaults(Class<?> type) {
        if (_overrides != null) {
            ConfigOverride override = _overrides.get(type);
            if (override != null) {
                JsonFormat.Value format = override.getFormat();
                if (format != null) {
                    if (!format.hasLenient()) {
                        return format.withLenient(_defaultLeniency);
                    }
                    return format;
                }
            }
        }
        if (_defaultLeniency == null) {
            return JsonFormat.Value.empty();
        }
        return JsonFormat.Value.forLeniency(_defaultLeniency);
    }

    /*
    /**********************************************************************
    /* Global defaults access
    /**********************************************************************
     */

    public JsonInclude.Value getDefaultInclusion() {
        return _defaultInclusion;
    }

    public JsonSetter.Value getDefaultSetterInfo() {
        return _defaultSetterInfo;
    }

    public Boolean getDefaultMergeable() {
        return _defaultMergeable;
    }

    /**
     * @since 2.10
     */
    public Boolean getDefaultLeniency() {
        return _defaultLeniency;
    }
    
    /**
     * @since 2.9
     */
    public VisibilityChecker<?> getDefaultVisibility() {
        return _visibilityChecker;
    }

    /**
     * @since 2.9
     */
    public void setDefaultInclusion(JsonInclude.Value v) {
        _defaultInclusion = v;
    }

    /**
     * @since 2.9
     */
    public void setDefaultSetterInfo(JsonSetter.Value v) {
        _defaultSetterInfo = v;
    }

    /**
     * @since 2.9
     */
    public void setDefaultMergeable(Boolean v) {
        _defaultMergeable = v;
    }

    /**
     * @since 2.10
     */
    public void setDefaultLeniency(Boolean v) {
        _defaultLeniency = v;
    }

    /**
     * @since 2.9
     */
    public void setDefaultVisibility(VisibilityChecker<?> v) {
        _visibilityChecker = v;
    }

    /*
    /**********************************************************************
    /* Helper methods
    /**********************************************************************
     */

    protected Map<Class<?>, MutableConfigOverride> _newMap() {
        return new HashMap<Class<?>, MutableConfigOverride>();
    }
}

⏎ com/fasterxml/jackson/databind/cfg/ConfigOverrides.java

Or download all of them as a single archive file:

File name: jackson-databind-2.14.0-sources.jar
File size: 1187952 bytes
Release date: 2022-11-05
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