Class SFDouble

All Implemented Interfaces:
SFDouble, X3DField

public class SFDouble extends X3DConcreteField implements SFDouble
This utility class provides a concrete implementation corresponding to SFDouble X3D field type.


Package hint: This specification class is defined by the X3D Java Language Binding Specification for the Scene Authoring Interface (SAI). SFDouble is a double-precision floating-point type. Array values are optionally separated by commas in XML syntax. See GeoVRML 1.0 Recommended Practice, Section 2.3, Limitations of Single Precision for rationale.

Related field object: MFDouble
See Also:
X3D Tooltips: type SFDouble, SAI Java Specification: B.4.11 X3DFieldTypes, SAI Abstract Specification: 5.2.15 SAIFieldType, X3D Abstract Specification: SFDoubleAndMFDouble, X3D Tooltips, X3D Tooltips: field, X3D Tooltips: fieldValue, X3D Scene Authoring Hints
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static double
    Default value for this field type is 0.0.
    static String
    Default string value for this field type is "0.0".
    static String
    String constant NAME provides name of this element: SFDouble
    static Pattern
    Precompiled regular expression (regex) pattern for this field type using default REGEX value.
    static String
    Default regular expression (regex) pattern for this field type is (\s)*([+-]?
    static int
    Default tuple size for this field type is 1 (i.e. number of component values making up a single-field SF object).

    Fields inherited from class org.web3d.x3d.jsail.fields.X3DConcreteField

    validationResult
  • Constructor Summary

    Constructors
    Constructor
    Description
    Constructor for SFDouble performs value initialization.
    SFDouble​(double newValue)
    Constructor for SFDouble using a corresponding Java primitive double as new initial value.
    SFDouble​(float newValue)
    Constructor using float as new initial value.
    SFDouble​(int newValue)
    Constructor using int as new initial value.
    SFDouble​(SFDouble newValue)
    Constructor to copy an SFDouble value as initial value for this new field object.
  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals​(SFDouble comparisonSFDouble)
    Determine whether two objects contain equal values.
    double
    Provides current value of the field as a Java primitive type.
    double
    Get the current value.
    void
    Initialization for SFDouble applies default initial value.
    static boolean
    Whether or not this field type is an array (false)
    boolean
    Determine whether current value matches DEFAULT_VALUE
    boolean
    Test PATTERN match via regular expression (regex) check of current object's toString() value.
    static boolean
    matches​(String value)
    Test PATTERN match with regular expression (regex) of provided value.
    void
    setValue​(double newValue)
    Assign a new value to this field.
    setValue​(float newValue)
    Apply a float value to this double field type, note change in precision.
    setValue​(int newValue)
    Apply an int value to this double field type, note change in precision.
    setValue​(SFDouble newValue)
    Apply an SFDouble value to this field.
    setValueByString​(String newValue)
    Utility accessor for SFDouble using String value (which must pass parsing validation checks).
    Utility method to strip trailing fractional zeroes from String representations of the current object's value.
    static String
    stripTrailingZeroes​(double value)
    Utility method to always strip trailing fractional zeroes from String value of any given double.
    Provides current value as a String.
    static String
    toString​(double value)
    Static utility method to provide String representation of a correctly typed input value.
    Validate current value via get/set comparison tests
    Validate current value via regular expression (regex) check of current object's toString() value, reporting errors only if found.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
  • Field Details

  • Constructor Details

    • SFDouble

      public SFDouble()
      Constructor for SFDouble performs value initialization.
    • SFDouble

      public SFDouble(SFDouble newValue)
      Constructor to copy an SFDouble value as initial value for this new field object.
      Parameters:
      newValue - The newValue to apply
    • SFDouble

      public SFDouble(double newValue)
      Constructor for SFDouble using a corresponding Java primitive double as new initial value.
      Parameters:
      newValue - is new value to assign setContainerFieldOverride(containerFieldName); // apply checksConcreteField#getTupleSize(String)
    • SFDouble

      public SFDouble(float newValue)
      Constructor using float as new initial value.
      Parameters:
      newValue - is new value to assign
    • SFDouble

      public SFDouble(int newValue)
      Constructor using int as new initial value.
      Parameters:
      newValue - is new value to assign
  • Method Details

    • isArray

      public static final boolean isArray()
      Whether or not this field type is an array (false)
      Returns:
      true if array type
    • initialize

      public final void initialize()
      Initialization for SFDouble applies default initial value. Static initializer also provided to verify that the regex pattern compiles and matches that default value.
      Specified by:
      initialize in class X3DConcreteField
      See Also:
      Stack Overflow: How to check if a given Regex is valid?, DEFAULT_VALUE
    • equals

      public boolean equals(SFDouble comparisonSFDouble)
      Determine whether two objects contain equal values.
      Parameters:
      comparisonSFDouble - field type to compare
      Returns:
      true if equivalent, false otherwise
    • validate

      public final String validate()
      Validate current value via get/set comparison tests
      Returns:
      empty string if get/set testing passes, warning otherwise
      See Also:
      validate(), validateRegex()
    • validateRegex

      public final String validateRegex()
      Validate current value via regular expression (regex) check of current object's toString() value, reporting errors only if found.
      Returns:
      empty string if PATTERN matches, warning otherwise
      See Also:
      REGEX, PATTERN, matches(), matches(String), validate(), validate(), java.util.regex.Pattern
    • matches

      public final boolean matches()
      Test PATTERN match via regular expression (regex) check of current object's toString() value.
      Returns:
      true if PATTERN matches, false otherwise
      See Also:
      REGEX, PATTERN, matches(), matches(String), validate(), java.util.regex.Pattern
    • matches

      public static final boolean matches(String value)
      Test PATTERN match with regular expression (regex) of provided value.
      Parameters:
      value - String to check against regex pattern for successful match
      Returns:
      true if PATTERN matches, false otherwise
      See Also:
      REGEX, PATTERN, matches(), matches(String), validate(), java.util.regex.Pattern
    • setValueByString

      public SFDouble setValueByString(String newValue) throws InvalidFieldValueException
      Utility accessor for SFDouble using String value (which must pass parsing validation checks).

      Warning: this method is not type safe at compile time! Best practice for X3DJSAIL programmers is to use strongly typed methods instead, in order to avoid potential for run-time errors.
      Parameters:
      newValue - is new value to assign, if empty then assign DEFAULT_VALUE
      Returns:
      MFMatrix4d - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same node object).
      Throws:
      InvalidFieldValueException
      See Also:
      X3DLoaderDOM.toX3dModelInstance(org.w3c.dom.Node)
    • toString

      public static String toString(double value)
      Static utility method to provide String representation of a correctly typed input value.
      Parameters:
      value - The value to convert to a String
      Returns:
      String version of the provided value
      See Also:
      X3D Tooltips: type
    • getValue

      public double getValue()
      Get the current value.
      Specified by:
      getValue in interface SFDouble
      Returns:
      current value
    • getPrimitiveValue

      public double getPrimitiveValue()
      Provides current value of the field as a Java primitive type.
      Returns:
      current value
    • toString

      public String toString()
      Provides current value as a String.
      Overrides:
      toString in class Object
      Returns:
      String version of the provided value
      See Also:
      X3D Tooltips: type SFDouble
    • setValue

      public void setValue(double newValue)
      Assign a new value to this field.
      Specified by:
      setValue in interface SFDouble
      Parameters:
      newValue - The replacement value to assign.
      See Also:
      X3DConcreteField.getTupleSize(String)
    • setValue

      public SFDouble setValue(float newValue)
      Apply a float value to this double field type, note change in precision.
      Parameters:
      newValue - The float newValue to apply
      Returns:
      SFDouble - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • setValue

      public SFDouble setValue(int newValue)
      Apply an int value to this double field type, note change in precision.
      Parameters:
      newValue - The float newValue to apply
      Returns:
      SFDouble - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • stripTrailingZeroes

      public String stripTrailingZeroes()
      Utility method to strip trailing fractional zeroes from String representations of the current object's value. Applicability: first converting an integer (such as 100) to double and then String results in trailing decimal point and zero (such as 100.0). Functionality can be globally enabled/disabled by ConfigurationProperties.setStripTrailingZeroes(boolean).
      Returns:
      string value with trailing zeros and decimal points stripped
      See Also:
      StackOverflow: Remove trailing zero in Java, StackOverflow: Remove trailing zeros from double (String manipulation solution), StackOverflow: How to nicely format floating numbers to String without unnecessary decimal 0? ("In short" solution), Regular Expressions Cookbook, 6.6. Strip Leading Zeros, by Jan Goyvaerts, Steven Levithan
    • stripTrailingZeroes

      public static String stripTrailingZeroes(double value)
      Utility method to always strip trailing fractional zeroes from String value of any given double. Applicability: first converting an integer (such as 100) to double and then String results in trailing decimal point and zero (such as 100.0). Note: not affected by ConfigurationProperties.setStripTrailingZeroes(boolean).
      Parameters:
      value - a double-precision number
      Returns:
      string value with trailing zeros and decimal points stripped
      See Also:
      stripTrailingZeroes(double)
    • setValue

      public SFDouble setValue(SFDouble newValue)
      Apply an SFDouble value to this field.
      Parameters:
      newValue - The newValue to apply
      Returns:
      SFDouble - namely this same object to allow sequential method pipelining (i.e. consecutive method invocations on the same object).
    • isDefaultValue

      public boolean isDefaultValue()
      Determine whether current value matches DEFAULT_VALUE
      Returns:
      whether current value matches DEFAULT_VALUE
      See Also:
      DEFAULT_VALUE