Module ibm.jzos

Package com.ibm.jzos.fields

Class AssemblerDatatypeFactory

java.lang.Object

com.ibm.jzos.fields.DatatypeFactory

com.ibm.jzos.fields.AssemblerDatatypeFactory

public class AssemblerDatatypeFactory
extends DatatypeFactory

Concrete implementation of DatatypeFactory with Assembler Field related factory methods.

A running offset to the next field is maintained, along with a stack which can be used to push and pop the current Field offset. A DatatypeFactory is typically used to statically initialize static Field variables in a Java class which maps a record described by a byte array. For an example, see Format1DSCB.

Instances of this class or its subclasses will automatically construct instances of com.ibm.jzos.fields.daa classes if the com.ibm.jzos.fields.daa package is available at runtime. See DatatypeFactory for more information.

Since:

2.1.0, 2.4.5 Data Access Accelerator support

See Also:

• DatatypeFactory

Field Summary

Fields inherited from class com.ibm.jzos.fields.DatatypeFactory

USE_DAA_DEFAULT, USE_DAA_PROPERTY

Constructor Summary

Constructors

Constructor	Description
AssemblerDatatypeFactory()

Method Summary

Modifier and Type	Method	Description
PackedDecimalAsBigDecimalField	getPackedDecimalAsBigDecimalField(int length, int scale, boolean signed)	Construct and return a PackedDecimalAsBigDecimalField, advancing the current offset by its byte length.
PackedDecimalAsBigIntegerField	getPackedDecimalAsBigIntegerField(int length, int scale, boolean signed)	Construct and return a PackedDecimalAsBigIntegerField, advancing the current offset by its byte length.
PackedDecimalAsIntField	getPackedDecimalAsIntField(int length, boolean signed)	Construct and return a PackedDecimalAsIntField, advancing the current offset by its byte length.
PackedDecimalAsLongField	getPackedDecimalAsLongField(int length, boolean signed)	Construct and return a PackedDecimalAsLongField, advancing the current offset by its byte length.
Field	getPackedDecimalField(int length, int scale, boolean signed)	Construct and return a PackedDecimalAs<*>Field, advancing the current offset by its byte length.
Field	getZonedDecimalField(int length, int scale, boolean signed)	Construct and return a ExternalDecimalAs<*>Field, depending on the length and scale requested.

Methods inherited from class com.ibm.jzos.fields.DatatypeFactory

getBinaryAsBigDecimalField, getBinaryAsBigIntegerField, getBinaryAsBigIntegerField, getBinaryAsIntField, getBinaryAsLongField, getBinaryField, getByteArrayField, getExternalDecimalAsBigDecimalField, getExternalDecimalAsBigDecimalField, getExternalDecimalAsBigIntegerField, getExternalDecimalAsBigIntegerField, getExternalDecimalAsIntField, getExternalDecimalAsIntField, getExternalDecimalAsLongField, getExternalDecimalAsLongField, getExternalDecimalField, getIbmDoubleField, getIbmFloatField, getMaximumOffset, getOffset, getStringEncoding, getStringField, getStringField, getStringField, getStringField, getStringField, getStringTrimDefault, incrementOffset, popOffset, pushOffset, setOffset, setStringEncoding, setStringTrimDefault, setUseDaa, useDaa

Methods inherited from class java.lang.Object

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

Constructor Details

AssemblerDatatypeFactory

public AssemblerDatatypeFactory()

Method Details

getPackedDecimalAsBigDecimalField

public PackedDecimalAsBigDecimalField getPackedDecimalAsBigDecimalField(int length,
 int scale,
 boolean signed)

Construct and return a PackedDecimalAsBigDecimalField, advancing the current offset by its byte length.

Overrides:

getPackedDecimalAsBigDecimalField in class DatatypeFactory

Parameters:

length - the size of the field in bytes

scale - the number of implied decimal digits to the right of the decimal point

signed - boolean true if the value is signed

Returns:

PackedDecimalAsBigDecimalField

See Also:

• PackedDecimalAsBigDecimalField(int, int, int, boolean)

getPackedDecimalAsBigIntegerField

public PackedDecimalAsBigIntegerField getPackedDecimalAsBigIntegerField(int length,
 int scale,
 boolean signed)

Construct and return a PackedDecimalAsBigIntegerField, advancing the current offset by its byte length.

Overrides:

getPackedDecimalAsBigIntegerField in class DatatypeFactory

Parameters:

length - the size of the field in bytes

scale - the number of implied decimal digits to the right of the decimal point

signed - boolean true if the value is signed

Returns:

PackedDecimalAsBigIntegerField

See Also:

• PackedDecimalAsBigIntegerField(int, int, int, boolean)

getPackedDecimalAsIntField

public PackedDecimalAsIntField getPackedDecimalAsIntField(int length,
 boolean signed)

Construct and return a PackedDecimalAsIntField, advancing the current offset by its byte length.

Overrides:

getPackedDecimalAsIntField in class DatatypeFactory

Parameters:

length - the size of the field in bytes

signed - boolean true if the value is signed

Returns:

PackedDecimalAsIntField

See Also:

• PackedDecimalAsIntField(int, int, boolean)

getPackedDecimalAsLongField

public PackedDecimalAsLongField getPackedDecimalAsLongField(int length,
 boolean signed)

Construct and return a PackedDecimalAsLongField, advancing the current offset by its byte length.

Overrides:

getPackedDecimalAsLongField in class DatatypeFactory

Parameters:

length - the size of the field in bytes

signed - boolean true if the value is signed

Returns:

PackedDecimalAsLongField

See Also:

• PackedDecimalAsLongField(int, int, boolean)

getPackedDecimalField

public Field getPackedDecimalField(int length,
 int scale,
 boolean signed)

Construct and return a PackedDecimalAs<*>Field, advancing the current offset by its byte length. The actual field returned is based on the length and scale.

Specified by:

getPackedDecimalField in class DatatypeFactory

Parameters:

length - the field length in bytes

scale - the number of implied decimal digits to the right of the decimal point

signed - true if the value is signed

Returns:

a PackedDecimalAs<*>Field.

Throws:

IllegalArgumentException - if length implies a precision > 31 digits.

See Also:

• PackedDecimalAsIntField
• PackedDecimalAsLongField
• PackedDecimalAsBigIntegerField
• PackedDecimalAsBigDecimalField

getZonedDecimalField

public Field getZonedDecimalField(int length,
 int scale,
 boolean signed)

Construct and return a ExternalDecimalAs<*>Field, depending on the length and scale requested. Advance the current offset by its byte length.

Parameters:

length - int the length of the field in bytes

scale - int the number of digits to the right of the decimal point

signed - boolean true if the field is signed, false if unsigned.

Returns:

Field

See Also:

• ExternalDecimalAsIntField
• ExternalDecimalAsLongField
• ExternalDecimalAsBigIntegerField
• ExternalDecimalAsBigDecimalField