column := "column-name"
	results := []struct {
		Expressions  []clause.Expression
		ExpectedVars []interface{}
		Result       string
	}{{
		Expressions: []clause.Expression{
			clause.Eq{Column: column, Value: "column-value"},
		},
		ExpectedVars: []interface{}{"column-value"},
		Result:       "`column-name` = ?",
	}, {
		Expressions: []clause.Expression{
			clause.Eq{Column: column, Value: nil},

    @Size(max = 100)
    public String name;

    /**
     * The target class for the scheduled job.
     */
    @Required
    @Size(max = 100)
    public String target;

    /**
     * The cron expression defining when the job should run.
     */
    @Size(max = 100)
    @CronExpression
    public String cronExpression;

    /**
     * The type of script for the scheduled job.
     */
    @Required

 * character}, fixed {@linkplain #on(String) string}, {@linkplain #onPattern regular expression} or
 * {@link #on(CharMatcher) CharMatcher} instance. Or, instead of using a separator at all, a
 * splitter can extract adjacent substrings of a given {@linkplain #fixedLength fixed length}.
 *
 * <p>For example, this expression:
 *
 * {@snippet :
 * Splitter.on(',').split("foo,bar,qux")
 * }
 *

* *路径*可以包含 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)（详见下文），可以使用带参数的变量，以及发送至您的 API 的原始请求的部分

### 回调路径表达式 { #the-callback-path-expression }

回调*路径*支持包含发送给您的 API 的原始请求的部分的 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)。

本例中是 `str`：

```Python
"{$callback_url}/invoices/{$request.body.id}"
```

constraints.NotEmpty.message = {item} is required.
constraints.ParametersScriptAssert.message = The script expression "{script}" is not true.
constraints.Range.message = {item} must be between {min} and {max}.
constraints.SafeHtml.message = {item} contains unsafe HTML content.
constraints.ScriptAssert.message = The script expression "{script}" is not true.
constraints.URL.message = {item} is not a valid URL.

constraints.NotEmpty.message = {item} is required.
constraints.ParametersScriptAssert.message = The script expression "{script}" is not true.
constraints.Range.message = {item} must be between {min} and {max}.
constraints.SafeHtml.message = {item} contains unsafe HTML content.
constraints.ScriptAssert.message = The script expression "{script}" is not true.
constraints.URL.message = {item} is not a valid URL.

    @Override
    public boolean isValid(final String value, final ConstraintValidatorContext context) {
        return determineValid(value);
    }

    /**
     * Determines if the given value is a valid cron expression.
     * @param value the value to validate
     * @return true if valid, false otherwise
     */
    protected boolean determineValid(final String value) {

            - ^docs/.*
          white-list-labels:
            - ':Delivery/Packaging'
          black-list-labels:
            - '>test-mute'
    axes:
      - axis:
          type: label-expression
          name: os
          values:
            - centos-7-packaging
            - centos-8-packaging
            - debian-9-packaging
            - debian-10-packaging
            - debian-11-packaging

            - master
          excluded-regions:
            - ^docs/.*
          black-list-labels:
            - '>test-mute'
            - ':Delivery/Packaging'
    axes:
      - axis:
          type: label-expression
          name: os
          values:
            - "windows-2019"
      - axis:
          type: user-defined
          name: PACKAGING_TASK
          values:
            - 'default-windows-archive'

import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

/**
 * File name filter that only accepts files matching a regular expression. This class is thread-safe
 * and immutable.
 *
 * @author Apple Chow
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
public final class PatternFilenameFilter implements FilenameFilter {