Package org.h2.value

Class ValueReal

java.lang.Object
org.h2.value.VersionedValue<Value>
org.h2.value.Value
org.h2.value.ValueReal
All Implemented Interfaces:
HasSQL, Typed
public final class ValueReal extends Value
Implementation of the REAL data type.

  • Field Details

    • PRECISION

      static final int PRECISION
      The precision in bits.
      See Also:

    • DECIMAL_PRECISION

      static final int DECIMAL_PRECISION
      The approximate precision in decimal digits.
      See Also:

    • DISPLAY_SIZE

      static final int DISPLAY_SIZE
      The maximum display size of a REAL. Example: -1.12345676E-20
      See Also:

    • ZERO_BITS

      public static final int ZERO_BITS
      Float.floatToIntBits(0f).
      See Also:

    • ZERO

      public static final ValueReal ZERO
      The value 0.

    • ONE

      public static final ValueReal ONE
      The value 1.

    • NAN

      private static final ValueReal NAN

    • value

      private final float value

  • Constructor Details

    • ValueReal

      private ValueReal(float value)

  • Method Details

    • add

      public Value add(Value v)
      Description copied from class: Value
      Add a value and return the result.
      Overrides:
      add in class Value
      Parameters:
      v - the value to add
      Returns:
      the result

    • subtract

      public Value subtract(Value v)
      Description copied from class: Value
      Subtract a value and return the result.
      Overrides:
      subtract in class Value
      Parameters:
      v - the value to subtract
      Returns:
      the result

    • negate

      public Value negate()
      Description copied from class: Value
      Return -value if this value support arithmetic operations.
      Overrides:
      negate in class Value
      Returns:
      the negative

    • multiply

      public Value multiply(Value v)
      Description copied from class: Value
      Multiply with a value and return the result.
      Overrides:
      multiply in class Value
      Parameters:
      v - the value to multiply with
      Returns:
      the result

    • divide

      public Value divide(Value v, TypeInfo quotientType)
      Description copied from class: Value
      Divide by a value and return the result.
      Overrides:
      divide in class Value
      Parameters:
      v - the divisor
      quotientType - the type of quotient (used only to read precision and scale when applicable)
      Returns:
      the result

    • modulus

      public Value modulus(Value v)
      Description copied from class: Value
      Take the modulus with a value and return the result.
      Overrides:
      modulus in class Value
      Parameters:
      v - the value to take the modulus with
      Returns:
      the result

    • getSQL

      public StringBuilder getSQL(StringBuilder builder, int sqlFlags)
      Description copied from interface: HasSQL
      Appends the SQL statement of this object to the specified builder.
      Parameters:
      builder - string builder
      sqlFlags - formatting flags
      Returns:
      the specified string builder

    • getSQL

      private StringBuilder getSQL(StringBuilder builder)

    • getType

      public TypeInfo getType()
      Description copied from interface: Typed
      Returns the data type.
      Specified by:
      getType in interface Typed
      Specified by:
      getType in class Value
      Returns:
      the data type

    • getValueType

      public int getValueType()
      Description copied from class: Value
      Get the value type.
      Specified by:
      getValueType in class Value
      Returns:
      the value type

    • compareTypeSafe

      public int compareTypeSafe(Value o, CompareMode mode, CastDataProvider provider)
      Description copied from class: Value
      Compare this value against another value given that the values are of the same data type.
      Specified by:
      compareTypeSafe in class Value
      Parameters:
      o - the other value
      mode - the compare mode
      provider - the cast information provider
      Returns:
      0 if both values are equal, -1 if the other value is smaller, and 1 otherwise

    • getSignum

      public int getSignum()
      Overrides:
      getSignum in class Value

    • getBigDecimal

      public BigDecimal getBigDecimal()
      Overrides:
      getBigDecimal in class Value

    • getFloat

      public float getFloat()
      Description copied from class: Value
      Returns this value as a Java float value.
      Overrides:
      getFloat in class Value
      Returns:
      value

    • getDouble

      public double getDouble()
      Description copied from class: Value
      Returns this value as a Java double value.
      Overrides:
      getDouble in class Value
      Returns:
      value

    • getString

      public String getString()
      Description copied from class: Value
      Get the value as a string.
      Specified by:
      getString in class Value
      Returns:
      the string

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in class Value

    • get

      public static ValueReal get(float d)
      Get or create a REAL value for the given float.
      Parameters:
      d - the float
      Returns:
      the value

    • equals

      public boolean equals(Object other)
      Description copied from class: Value
      Check if the two values have the same hash code. No data conversion is made; this method returns false if the other object is not of the same class. For some values, compareTo may return 0 even if equals return false. Example: ValueDecimal 0.0 and 0.00.
      Specified by:
      equals in class Value
      Parameters:
      other - the other value
      Returns:
      true if they are equal