Module ibm.jzos
Package com.ibm.jzos.fields

Class ExternalFloatField

java.lang.Object
com.ibm.jzos.fields.ExternalFloatField
All Implemented Interfaces:
DoubleAccessor, Field
public class ExternalFloatField extends Object implements DoubleAccessor
A character floating point representation Field with double accessors. In Cobol, refered to as "External Float".

Since:
2.1.0

  • Constructor Summary

    Constructors
    Constructor
    Description
    ExternalFloatField(int offset, int precision, int scale, boolean mantSign, boolean expSign, boolean impliedDecimal)
    Construct an instance.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Double aDouble, double adouble)
    Compare a Double with a double for equality.
    int
    getByteLength()
    Answer the length of the field described by the receiver
    double
    getDouble(byte[] buffer)
    Return a double from the given byte array buffer, at the offset of this field.
    double
    getDouble(byte[] buffer, int bufOffset)
    Return a double from the given byte array buffer, at the bufOffset + offset of this field.
    int
    getLength()
     
    int
    getOffset()
    Answer the offset of this field into some array of bytes
    int
    getPrecision()
     
    int
    getScale()
     
    boolean
    isImpliedDecimal()
     
    boolean
    isShowExponentPlusSign()
     
    boolean
    isShowMantissaPlusSign()
     
    void
    putDouble(double value, byte[] buffer)
    Put a double value into the given byte array buffer, at the offset of this field.
    void
    putDouble(double value, byte[] buffer, int bufOffset)
    Put a double value into the given byte array buffer, at the bufOffset + offset of this field.
    void
    setOffset(int offset)
     

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ExternalFloatField

      public ExternalFloatField(int offset, int precision, int scale, boolean mantSign, boolean expSign, boolean impliedDecimal)
      Construct an instance.
      Parameters:
      offset - int the offset of this field
      precision - in the number of decimal degits of precision
      scale - the number of implied decimal digits in the fractional portion of the field
      mantSign - true if the '+' character is present for positive mantissa values. A minus character '-' is always present for negative values.
      expSign - true if the '+' character is present for positive exponent values A minus character '-' is always present for negative values.
      impliedDecimal - true if the decimal point is not explicit

  • Method Details

    • getDouble

      public double getDouble(byte[] buffer)
      Return a double from the given byte array buffer, at the offset of this field.
      Specified by:
      getDouble in interface DoubleAccessor
      Parameters:
      buffer - the byte array
      Returns:
      double

    • getDouble

      public double getDouble(byte[] buffer, int bufOffset)
      Return a double from the given byte array buffer, at the bufOffset + offset of this field.
      Specified by:
      getDouble in interface DoubleAccessor
      Parameters:
      buffer - the byte array
      bufOffset - the additional offset into the byte array
      Returns:
      double

    • putDouble

      public void putDouble(double value, byte[] buffer)
      Put a double value into the given byte array buffer, at the offset of this field.
      Specified by:
      putDouble in interface DoubleAccessor
      Parameters:
      value - the double value
      buffer - the byte array
      Throws:
      IllegalArgumentException - if the value is Infinity or NaN

    • putDouble

      public void putDouble(double value, byte[] buffer, int bufOffset)
      Put a double value into the given byte array buffer, at the bufOffset + offset of this field.
      Specified by:
      putDouble in interface DoubleAccessor
      Parameters:
      value - the double value
      buffer - the byte array
      bufOffset - the additional offset into the byte array
      Throws:
      IllegalArgumentException - if the value is Infinity or NaN

    • getByteLength

      public int getByteLength()
      Description copied from interface: Field
      Answer the length of the field described by the receiver
      Specified by:
      getByteLength in interface Field
      Returns:
      int
      See Also:

    • getOffset

      public int getOffset()
      Description copied from interface: Field
      Answer the offset of this field into some array of bytes
      Specified by:
      getOffset in interface Field
      Returns:
      int
      See Also:

    • setOffset

      public void setOffset(int offset)
      Specified by:
      setOffset in interface Field
      See Also:

    • equals

      public boolean equals(Double aDouble, double adouble)
      Compare a Double with a double for equality.
      Parameters:
      aDouble - possibly null
      adouble -
      Returns:
      boolean true if equal, false otherwise

    • isImpliedDecimal

      public boolean isImpliedDecimal()

    • getLength

      public int getLength()

    • getPrecision

      public int getPrecision()

    • getScale

      public int getScale()

    • isShowExponentPlusSign

      public boolean isShowExponentPlusSign()

    • isShowMantissaPlusSign

      public boolean isShowMantissaPlusSign()