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

Jackson Core Source Code files are provided in the source packge (jackson-core-2.12.4-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Core Source Code below:

⏎ com/fasterxml/jackson/core/StreamWriteCapability.java

package com.fasterxml.jackson.core;

import com.fasterxml.jackson.core.util.JacksonFeature;

/**
 * Set of on/off capabilities that a {@link JsonGenerator} for given format
 * (or in case of buffering, original format) has.
 * Used in some cases to adjust aspects of things like content conversions and
 * coercions by format-agnostic functionality.
 * Specific or expected usage documented by individual capability entry Javadocs.
 *
 * @since 2.12
 */
public enum StreamWriteCapability
    implements JacksonFeature
{
    /**
     * Capability that indicates that the data format is able to express binary
     * data natively, without using textual encoding like Base64.
     *<p>
     * Capability is currently enabled for all binary formats and none of textual
     * formats.
     */
    CAN_WRITE_BINARY_NATIVELY(false),

    /**
     * Capability that indicates that the data format is able to write
     * "formatted numbers": that is, output of numbers is done as Strings
     * and caller is allowed to pass in logical number values as Strings.
     *<p>
     * Capability is currently enabled for most textual formats and none of binary
     * formats.
     */
    CAN_WRITE_FORMATTED_NUMBERS(false)
    ;

    /**
     * Whether feature is enabled or disabled by default.
     */
    private final boolean _defaultState;

    private final int _mask;

    private StreamWriteCapability(boolean defaultState) {
        _defaultState = defaultState;
        _mask = (1 << ordinal());
    }

    @Override
    public boolean enabledByDefault() { return _defaultState; }
    @Override
    public boolean enabledIn(int flags) { return (flags & _mask) != 0; }
    @Override
    public int getMask() { return _mask; }
}

⏎ com/fasterxml/jackson/core/StreamWriteCapability.java

 

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