Module org.jline.prompt
Package org.jline.prompt.impl

Class DefaultNumberBuilder

java.lang.Object
org.jline.prompt.impl.DefaultNumberBuilder
All Implemented Interfaces:
BaseBuilder<NumberBuilder>, NumberBuilder
public class DefaultNumberBuilder extends Object implements NumberBuilder
Default implementation of NumberBuilder.

  • Constructor Details

    • DefaultNumberBuilder

      public DefaultNumberBuilder(PromptBuilder parent)

  • Method Details

    • name

      public NumberBuilder name(String name)
      Description copied from interface: BaseBuilder
      Set the unique identifier for this prompt.

      The name serves as the key in the result map returned by Prompter.prompt(java.util.List<org.jline.utils.AttributedString>, java.util.List<? extends org.jline.prompt.Prompt>). It must be unique within a single prompt session to avoid conflicts.

      Naming Guidelines:

      • Use descriptive, lowercase names with underscores: "user_name", "file_path"
      • Avoid spaces and special characters
      • Keep names concise but meaningful
      • Use consistent naming conventions across your application

      Example:

      
 builder.createInputPrompt()
     .name("email_address")  // Used as key in results map
     .message("Enter your email:")
     .addPrompt();

 // Later access the result
 InputResult emailResult = (InputResult) results.get("email_address");
      Specified by:
      name in interface BaseBuilder<NumberBuilder>
      Parameters:
      name - the unique identifier for this prompt (required, non-null, non-empty)
      Returns:
      this builder instance for method chaining

    • message

      public NumberBuilder message(String message)
      Description copied from interface: BaseBuilder
      Set the message displayed to the user for this prompt.

      The message is the primary text that explains what the user should do. It should be clear, concise, and provide sufficient context for the user to understand what input is expected.

      Message Guidelines:

      • Use clear, actionable language: "Select your preferred option"
      • End with appropriate punctuation (colon for selections, question mark for questions)
      • Keep messages concise but informative
      • Consider the terminal width for longer messages

      Examples:

      • List prompt: "Choose your preferred IDE:"
      • Input prompt: "Enter your full name:"
      • Confirm prompt: "Do you want to continue?"
      • Checkbox prompt: "Select features to enable:"
      Specified by:
      message in interface BaseBuilder<NumberBuilder>
      Parameters:
      message - the message to display to the user (required, non-null, non-empty)
      Returns:
      this builder instance for method chaining

    • defaultValue

      public NumberBuilder defaultValue(String defaultValue)
      Description copied from interface: NumberBuilder
      Set the default value.
      Specified by:
      defaultValue in interface NumberBuilder
      Parameters:
      defaultValue - the default value
      Returns:
      this builder

    • min

      public NumberBuilder min(Double min)
      Description copied from interface: NumberBuilder
      Set the minimum allowed value.
      Specified by:
      min in interface NumberBuilder
      Parameters:
      min - the minimum value
      Returns:
      this builder

    • max

      public NumberBuilder max(Double max)
      Description copied from interface: NumberBuilder
      Set the maximum allowed value.
      Specified by:
      max in interface NumberBuilder
      Parameters:
      max - the maximum value
      Returns:
      this builder

    • allowDecimals

      public NumberBuilder allowDecimals(boolean allowDecimals)
      Description copied from interface: NumberBuilder
      Set whether to allow decimal numbers.
      Specified by:
      allowDecimals in interface NumberBuilder
      Parameters:
      allowDecimals - true to allow decimals, false for integers only
      Returns:
      this builder

    • invalidNumberMessage

      public NumberBuilder invalidNumberMessage(String message)
      Description copied from interface: NumberBuilder
      Set the error message for invalid numbers.
      Specified by:
      invalidNumberMessage in interface NumberBuilder
      Parameters:
      message - the error message
      Returns:
      this builder

    • outOfRangeMessage

      public NumberBuilder outOfRangeMessage(String message)
      Description copied from interface: NumberBuilder
      Set the error message for out-of-range numbers.
      Specified by:
      outOfRangeMessage in interface NumberBuilder
      Parameters:
      message - the error message
      Returns:
      this builder

    • transformer

      public NumberBuilder transformer(Function<String,String> transformer)
      Description copied from interface: BaseBuilder
      Set a transformer function that modifies how the answer is displayed after submission. This does not change the actual returned value. For example, a password prompt might transform the answer to "***".
      Specified by:
      transformer in interface BaseBuilder<NumberBuilder>
      Parameters:
      transformer - the transformer function
      Returns:
      this builder instance for method chaining

    • filter

      public NumberBuilder filter(Function<String,String> filter)
      Description copied from interface: BaseBuilder
      Set a filter function that modifies the actual returned value. This changes the value stored in the result map. For example, trimming whitespace or converting to lowercase.
      Specified by:
      filter in interface BaseBuilder<NumberBuilder>
      Parameters:
      filter - the filter function
      Returns:
      this builder instance for method chaining

    • addPrompt

      public PromptBuilder addPrompt()
      Description copied from interface: BaseBuilder
      Complete the configuration of this prompt and add it to the parent builder.

      This method finalizes the current prompt configuration, validates that all required fields are set, creates the prompt instance, and adds it to the parent PromptBuilder. After calling this method, you can continue adding more prompts or call PromptBuilder.build() to create the final list.

      Validation:

      This method typically validates that:

      • The prompt name is set and unique
      • The message is set and non-empty
      • Any prompt-specific requirements are met (e.g., list items are added)

      Example Usage:

      
 PromptBuilder builder = prompter.newBuilder();

 builder.createListPrompt()
     .name("color")
     .message("Choose a color:")
     .newItem("red").text("Red").add()
     .newItem("blue").text("Blue").add()
     .addPrompt()  // Completes this prompt and returns to builder
     .createConfirmPrompt()
     .name("confirm")
     .message("Are you sure?")
     .addPrompt(); // Completes second prompt

 List<Prompt> prompts = builder.build();
      Specified by:
      addPrompt in interface BaseBuilder<NumberBuilder>
      Returns:
      the parent PromptBuilder for continued prompt configuration
      See Also: