### Tags with Enums { #tags-with-enums }

If you have a big application, you might end up accumulating **several tags**, and you would want to make sure you always use the **same tag** for related *path operations*.

In these cases, it could make sense to store the tags in an `Enum`.

**FastAPI** supports that the same way as with plain strings:

    //                                                                           Attribute
    //

    /**
     * The helper for related content.
     */
    @Resource
    protected RelatedContentHelper relatedContentHelper;

    /**
     * The helper for related queries.
     */
    @Resource
    protected RelatedQueryHelper relatedQueryHelper;

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Float}.
 *
 * @author higa
 */
public abstract class FloatConversionUtil {

    /**
     * Do not instantiate.
     */
    protected FloatConversionUtil() {
    }

    /**

        return msg.toString();
    }

    /**
     * Returns the problem collector associated with this exception.
     *
     * @return the problem collector containing all problems related to this exception
     */
    public ProblemCollector<BuilderProblem> getProblemCollector() {
        return problems;
    }

# Header Parameter Models { #header-parameter-models }

If you have a group of related **header parameters**, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

        checkVersionsOrder(b, d);
        checkVersionsOrder(a, d);
    }

    /**
     * Test all versions are equal when starting with many leading zeroes regardless of string length
     * (related to MNG-6572 optimization)
     */
    @Test
    void testVersionEqualWithLeadingZeroes() {
        // versions with string lengths from 1 to 19
        String[] arr = new String[] {

            // - groupId should NOT be removed (external parents need groupId to be located)
            // - artifactId should NOT be removed (external parents need artifactId to be located)
            // - version should NOT be removed (external parents need version to be located)
            // This prevents the "parent.groupId is missing" error reported in issue #7934

					Value:  clause.Column{Table: rel.JoinTable.Table, Name: ref.ForeignKey.DBName},
				})
			}
		}

		// EXISTS related: related.pk = join.rel_fk for all related refs, plus optional conditions
		relatedExists := base.Session(&Session{NewDB: true, Context: ctx}).Table(rel.FieldSchema.Table).Select("1")
		for _, ref := range rel.References {

 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Short}.
 *
 * @author higa
 */
public abstract class ShortConversionUtil {

    /**
     * Do not instantiate.
     */
    protected ShortConversionUtil() {
    }

    /**

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