public class FluxObjective extends SBase
An integral component in a complete description of a steady-state model is
the so-called objective function, which generally consists of a
linear combination of model variables (fluxes) and a sense (direction). In
the SBML Level 3 Flux Balance Constraints (&ldquofbc&rdquo) package, this concept
is succinctly captured in the Objective
class. An Objective
object
includes a list of flux objectives, each in the form of a FluxObjective
object.
The FluxObjective
class is a relatively simple container for a model
variable weighted by a signed linear coefficient. In addition to the
common SBML object attributes of 'id' and 'name' (both of which are
optional), it adds two required attributes: 'reaction' and 'coefficient'.
The 'reaction' attribute must have a value of type SIdRef
,
and its value is restricted to the identifier of a Reaction
object in the
model. The 'reaction' attribute identifiers the reaction to which the
FluxObjective
applies. The 'coefficient' attribute must have a value of
type double
, and refers to the coefficient that this
FluxObjective
takes in the enclosing Objective
. Its unit of measurement
is dimensionless
. The meaning of these two attributes
together is given by the formula coefficient ×
reaction-flux. Since reactions in SBML Level 3 are in units of
extent, the units of a flux objective are thus extent per
time.
The following example * illustrates the use of these attributes in an example of a * ListOfObjectives:
<fbc:listOfObjectives fbc:activeObjective='obj1'> <fbc:objective fbc:id='obj1' fbc:type='maximize'> <fbc:listOfFluxObjectives> <fbc:fluxObjective fbc:reaction='R1' fbc:coefficient='1'/> <fbc:fluxObjective fbc:reaction='R2' fbc:coefficient='2'/> </fbc:listOfFluxObjectives> </fbc:objective> </fbc:listOfObjectives>
Objective
,
ListOfObjectives
,
ListOfFluxObjectives
Constructor and Description |
---|
FluxObjective()
Creates a new
FluxObjective with the given SBML Level, Version, and
&ldquofbc&rdquopackage version. |
FluxObjective(FbcPkgNamespaces fbcns)
Creates a new
FluxObjective with the given FbcPkgNamespaces object. |
FluxObjective(FluxObjective orig)
Copy constructor for
FluxObjective . |
FluxObjective(long level)
Creates a new
FluxObjective with the given SBML Level, Version, and
&ldquofbc&rdquopackage version. |
FluxObjective(long level,
long version)
Creates a new
FluxObjective with the given SBML Level, Version, and
&ldquofbc&rdquopackage version. |
FluxObjective(long level,
long version,
long pkgVersion)
Creates a new
FluxObjective with the given SBML Level, Version, and
&ldquofbc&rdquopackage version. |
Modifier and Type | Method and Description |
---|---|
FluxObjective |
cloneObject()
Creates and returns a deep copy of this
FluxObjective object. |
void |
delete()
Explicitly deletes the underlying native object.
|
double |
getCoefficient()
Returns the value of the 'coefficient' attribute of this
FluxObjective . |
java.lang.String |
getElementName()
Returns the XML element name of this object.
|
java.lang.String |
getId()
Returns the value of the 'id' attribute of this
FluxObjective . |
java.lang.String |
getName()
Returns the value of the 'name' attribute of this
FluxObjective object. |
java.lang.String |
getReaction()
Returns the value of the 'reaction' attribute of this
FluxObjective . |
int |
getTypeCode()
Returns the libSBML type code for this SBML object.
|
boolean |
hasRequiredAttributes()
Predicate returning
true if all the required attributes
for this FluxObjective object have been set. |
boolean |
isSetCoefficient()
Predicate returning
true if this FluxObjective 's 'coefficient'
attribute is set. |
boolean |
isSetId()
Predicate returning
true if this FluxObjective 's 'id' attribute is
set. |
boolean |
isSetName()
Predicate returning
true if this FluxObjective 's 'name' attribute is
set. |
boolean |
isSetReaction()
Predicate returning
true if this FluxObjective 's 'reaction' attribute
is set. |
void |
renameSIdRefs(java.lang.String oldid,
java.lang.String newid)
Replaces all uses of a given
SIdRef type attribute value with another
value. |
int |
setCoefficient(double coefficient)
Sets the value of the 'coefficient' attribute of this
FluxObjective . |
int |
setId(java.lang.String sid)
Sets the value of the 'id' attribute of this
FluxObjective . |
int |
setName(java.lang.String name)
Sets the value of the 'name' attribute of this
FluxObjective . |
int |
setReaction(java.lang.String reaction)
Sets the value of the 'reaction' attribute of this
FluxObjective . |
int |
unsetCoefficient()
Unsets the value of the 'coefficient' attribute of this
FluxObjective . |
int |
unsetId()
Unsets the value of the 'id' attribute of this
FluxObjective . |
int |
unsetName()
Unsets the value of the 'name' attribute of this
FluxObjective . |
int |
unsetReaction()
Unsets the value of the 'reaction' attribute of this
FluxObjective . |
addCVTerm, addCVTerm, appendAnnotation, appendAnnotation, appendNotes, appendNotes, connectToChild, deleteDisabledPlugins, deleteDisabledPlugins, disablePackage, enablePackage, equals, getAncestorOfType, getAncestorOfType, getAnnotation, getAnnotationString, getColumn, getCVTerm, getCVTerms, getDisabledPlugin, getElementByMetaId, getElementBySId, getIdAttribute, getLevel, getLine, getListOfAllElements, getListOfAllElements, getListOfAllElementsFromPlugins, getListOfAllElementsFromPlugins, getMetaId, getModel, getModelHistory, getNamespaces, getNotes, getNotesString, getNumCVTerms, getNumDisabledPlugins, getNumPlugins, getObjectVersion, getPackageName, getPackageVersion, getParentSBMLObject, getPlugin, getPlugin, getPrefix, getResourceBiologicalQualifier, getResourceModelQualifier, getSBMLDocument, getSBOTerm, getSBOTermAsURL, getSBOTermID, getURI, getVersion, hashCode, hasValidLevelVersionNamespaceCombination, isPackageEnabled, isPackageURIEnabled, isPkgEnabled, isPkgURIEnabled, isSetAnnotation, isSetIdAttribute, isSetMetaId, isSetModelHistory, isSetNotes, isSetSBOTerm, isSetUserData, matchesRequiredSBMLNamespacesForAddition, matchesSBMLNamespaces, removeFromParentAndDelete, removeTopLevelAnnotationElement, removeTopLevelAnnotationElement, removeTopLevelAnnotationElement, renameMetaIdRefs, renameUnitSIdRefs, replaceTopLevelAnnotationElement, replaceTopLevelAnnotationElement, setAnnotation, setAnnotation, setIdAttribute, setMetaId, setModelHistory, setNamespaces, setNotes, setNotes, setNotes, setSBOTerm, setSBOTerm, toSBML, toXMLNode, unsetAnnotation, unsetCVTerms, unsetIdAttribute, unsetMetaId, unsetModelHistory, unsetNotes, unsetSBOTerm, unsetUserData
public FluxObjective(long level, long version, long pkgVersion) throws SBMLConstructorException
FluxObjective
with the given SBML Level, Version, and
&ldquofbc&rdquopackage version.
level
- a long integer, the SBML Level to assign to this
FluxObjective
.
version
- a long integer, the SBML Version to assign to this
FluxObjective
.
pkgVersion
- a long integer, the SBML Fbc Version to assign to
this FluxObjective
.
SBMLConstructorException
SBMLDocument
having a different
combination of SBML Level, Version and XML namespaces than the object
itself will result in an error at the time a caller attempts to make the
addition. A parent object must have compatible Level, Version and XML
namespaces. (Strictly speaking, a parent may also have more XML
namespaces than a child, but the reverse is not permitted.) The
restriction is necessary to ensure that an SBML model has a consistent
overall structure. This requires callers to manage their objects
carefully, but the benefit is increased flexibility in how models can be
created by permitting callers to create objects bottom-up if desired. In
situations where objects are not yet attached to parents (e.g.,
SBMLDocument
), knowledge of the intented SBML Level and Version help
libSBML determine such things as whether it is valid to assign a
particular value to an attribute. For packages, this means that the
parent object to which this package element is being added must have
been created with the package namespace, or that the package namespace
was added to it, even if that parent is not a package object itself.public FluxObjective(long level, long version) throws SBMLConstructorException
FluxObjective
with the given SBML Level, Version, and
&ldquofbc&rdquopackage version.
level
- a long integer, the SBML Level to assign to this
FluxObjective
.
version
- a long integer, the SBML Version to assign to this
FluxObjective
.
pkgVersion
- a long integer, the SBML Fbc Version to assign to
this FluxObjective
.
SBMLConstructorException
SBMLDocument
having a different
combination of SBML Level, Version and XML namespaces than the object
itself will result in an error at the time a caller attempts to make the
addition. A parent object must have compatible Level, Version and XML
namespaces. (Strictly speaking, a parent may also have more XML
namespaces than a child, but the reverse is not permitted.) The
restriction is necessary to ensure that an SBML model has a consistent
overall structure. This requires callers to manage their objects
carefully, but the benefit is increased flexibility in how models can be
created by permitting callers to create objects bottom-up if desired. In
situations where objects are not yet attached to parents (e.g.,
SBMLDocument
), knowledge of the intented SBML Level and Version help
libSBML determine such things as whether it is valid to assign a
particular value to an attribute. For packages, this means that the
parent object to which this package element is being added must have
been created with the package namespace, or that the package namespace
was added to it, even if that parent is not a package object itself.public FluxObjective(long level) throws SBMLConstructorException
FluxObjective
with the given SBML Level, Version, and
&ldquofbc&rdquopackage version.
level
- a long integer, the SBML Level to assign to this
FluxObjective
.
version
- a long integer, the SBML Version to assign to this
FluxObjective
.
pkgVersion
- a long integer, the SBML Fbc Version to assign to
this FluxObjective
.
SBMLConstructorException
SBMLDocument
having a different
combination of SBML Level, Version and XML namespaces than the object
itself will result in an error at the time a caller attempts to make the
addition. A parent object must have compatible Level, Version and XML
namespaces. (Strictly speaking, a parent may also have more XML
namespaces than a child, but the reverse is not permitted.) The
restriction is necessary to ensure that an SBML model has a consistent
overall structure. This requires callers to manage their objects
carefully, but the benefit is increased flexibility in how models can be
created by permitting callers to create objects bottom-up if desired. In
situations where objects are not yet attached to parents (e.g.,
SBMLDocument
), knowledge of the intented SBML Level and Version help
libSBML determine such things as whether it is valid to assign a
particular value to an attribute. For packages, this means that the
parent object to which this package element is being added must have
been created with the package namespace, or that the package namespace
was added to it, even if that parent is not a package object itself.public FluxObjective() throws SBMLConstructorException
FluxObjective
with the given SBML Level, Version, and
&ldquofbc&rdquopackage version.
level
- a long integer, the SBML Level to assign to this
FluxObjective
.
version
- a long integer, the SBML Version to assign to this
FluxObjective
.
pkgVersion
- a long integer, the SBML Fbc Version to assign to
this FluxObjective
.
SBMLConstructorException
SBMLDocument
having a different
combination of SBML Level, Version and XML namespaces than the object
itself will result in an error at the time a caller attempts to make the
addition. A parent object must have compatible Level, Version and XML
namespaces. (Strictly speaking, a parent may also have more XML
namespaces than a child, but the reverse is not permitted.) The
restriction is necessary to ensure that an SBML model has a consistent
overall structure. This requires callers to manage their objects
carefully, but the benefit is increased flexibility in how models can be
created by permitting callers to create objects bottom-up if desired. In
situations where objects are not yet attached to parents (e.g.,
SBMLDocument
), knowledge of the intented SBML Level and Version help
libSBML determine such things as whether it is valid to assign a
particular value to an attribute. For packages, this means that the
parent object to which this package element is being added must have
been created with the package namespace, or that the package namespace
was added to it, even if that parent is not a package object itself.public FluxObjective(FbcPkgNamespaces fbcns) throws SBMLConstructorException
FluxObjective
with the given FbcPkgNamespaces
object.
The package namespaces object used in this constructor is derived from a
SBMLNamespaces
object, which encapsulates SBML Level/Version/namespaces
information. It is used to communicate the SBML Level, Version, and
package version and name information used in addition to SBML Level 3 Core. A
common approach to using libSBML's SBMLNamespaces
facilities is to create an
package namespace object somewhere in a program once, then hand that object
as needed to object constructors of that package that accept it as and
argument, such as this one.
fbcns
- the FbcPkgNamespaces
object.
SBMLConstructorException
SBMLDocument
having a different
combination of SBML Level, Version and XML namespaces than the object
itself will result in an error at the time a caller attempts to make the
addition. A parent object must have compatible Level, Version and XML
namespaces. (Strictly speaking, a parent may also have more XML
namespaces than a child, but the reverse is not permitted.) The
restriction is necessary to ensure that an SBML model has a consistent
overall structure. This requires callers to manage their objects
carefully, but the benefit is increased flexibility in how models can be
created by permitting callers to create objects bottom-up if desired. In
situations where objects are not yet attached to parents (e.g.,
SBMLDocument
), knowledge of the intented SBML Level and Version help
libSBML determine such things as whether it is valid to assign a
particular value to an attribute. For packages, this means that the
parent object to which this package element is being added must have
been created with the package namespace, or that the package namespace
was added to it, even if that parent is not a package object itself.public FluxObjective(FluxObjective orig) throws SBMLConstructorException
FluxObjective
.
orig
- the FluxObjective
instance to copy.SBMLConstructorException
public void delete()
In general, application software will not need to call this method directly. The Java language binding for libSBML is implemented as a language wrapper that provides a Java interface to libSBML's underlying C++/C code. Some of the Java methods return objects that are linked to objects created not by Java code, but by C++ code. The Java objects wrapped around them will be deleted when the garbage collector invokes the corresponding C++ finalize()
methods for the objects. The finalize()
methods in turn call the FluxObjective.delete()
method on the libSBML object.
This method is exposed in case calling programs want to ensure that the underlying object is freed immediately, and not at some arbitrary time determined by the Java garbage collector. In normal usage, callers do not need to invoke FluxObjective.delete()
themselves.
public FluxObjective cloneObject()
FluxObjective
object.
cloneObject
 in class SBase
FluxObjective
object.public java.lang.String getId()
FluxObjective
.
getId
 in class SBase
FluxObjective
.
SBase.getIdAttribute()
,
SBase.setIdAttribute(String sid)
,
SBase.isSetIdAttribute()
,
SBase.unsetIdAttribute()
The identifier given by an object's 'id' attribute value
is used to identify the object within the SBML model definition.
Other objects can refer to the component using this identifier. The
data type of 'id' is always SId
or a type derived
from that, such as UnitSId
, depending on the object in
question. All data types are defined as follows:
letter .= 'a'..'z','A'..'Z' digit .= '0'..'9' idChar .= letter | digit | '_' SId .= ( letter | '_' ) idChar*
The characters (
and )
are used for grouping, the
character *
'zero or more times', and the character
|
indicates logical 'or'. The equality of SBML identifiers is
determined by an exact character sequence match i.e., comparisons must be
performed in a case-sensitive manner. This applies to all uses of SId
,
SIdRef
, and derived types.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, check, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The exception to this rule is that for InitialAssignment
, EventAssignment
,
AssignmentRule
, and RateRule
objects, the getId() function and the isSetId()
functions (though not the setId() or unsetId() functions) would instead
reference the value of the 'variable' attribute (for the rules and event
assignments) or the 'symbol' attribute (for initial assignments).
The AlgebraicRule
fell into this category as well, though because it
contained neither a 'variable' nor a 'symbol' attribute, getId() would
always return an empty string, and isSetId() would always return false.
For this reason, four new functions are now provided
(getIdAttribute(), setIdAttribute(String),
isSetIdAttribute(), and unsetIdAttribute()) that will always
act on the actual 'id' attribute, regardless of the object's type. The
new functions should be used instead of the old ones unless the old behavior
is somehow necessary.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have identifiers). If the object in question does not posess an 'id' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the identifier to be set, nor will it read or write 'id' attributes for those objects.
public java.lang.String getName()
FluxObjective
object.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The 'name' attribute is
optional and is not intended to be used for cross-referencing purposes
within a model. Its purpose instead is to provide a human-readable
label for the component. The data type of 'name' is the type
string
defined in XML Schema. SBML imposes no
restrictions as to the content of 'name' attributes beyond those
restrictions defined by the string
type in XML Schema.
The recommended practice for handling 'name' is as follows. If a software tool has the capability for displaying the content of 'name' attributes, it should display this content to the user as a component's label instead of the component's 'id'. If the user interface does not have this capability (e.g., because it cannot display or use special characters in symbol names), or if the 'name' attribute is missing on a given component, then the user interface should display the value of the 'id' attribute instead. (Script language interpreters are especially likely to display 'id' instead of 'name'.)
As a consequence of the above, authors of systems that automatically generate the values of 'id' attributes should be aware some systems may display the 'id''s to the user. Authors therefore may wish to take some care to have their software create 'id' values that are: (a) reasonably easy for humans to type and read and (b) likely to be meaningful, for example by making the 'id' attribute be an abbreviated form of the name attribute value.
An additional point worth mentioning is although there are restrictions on the uniqueness of 'id' values, there are no restrictions on the uniqueness of 'name' values in a model. This allows software applications leeway in assigning component identifiers.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have names). If the object in question does not posess a 'name' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the name to be set, nor will it read or write 'name' attributes for those objects.
getName
 in class SBase
SBase.getIdAttribute()
,
FluxObjective.isSetName()
,
FluxObjective.setName(String sid)
,
FluxObjective.unsetName()
public java.lang.String getReaction()
FluxObjective
.
FluxObjective
as a
string.public double getCoefficient()
FluxObjective
.
FluxObjective
as a double.public boolean isSetId()
isSetId
 in class SBase
true
if the 'id' attribute of this SBML object is
set, false
otherwise.
SBase.getIdAttribute()
,
SBase.setIdAttribute(String sid)
,
SBase.unsetIdAttribute()
,
SBase.isSetIdAttribute()
The identifier given by an object's 'id' attribute value
is used to identify the object within the SBML model definition.
Other objects can refer to the component using this identifier. The
data type of 'id' is always SId
or a type derived
from that, such as UnitSId
, depending on the object in
question. All data types are defined as follows:
letter .= 'a'..'z','A'..'Z' digit .= '0'..'9' idChar .= letter | digit | '_' SId .= ( letter | '_' ) idChar*
The characters (
and )
are used for grouping, the
character *
'zero or more times', and the character
|
indicates logical 'or'. The equality of SBML identifiers is
determined by an exact character sequence match i.e., comparisons must be
performed in a case-sensitive manner. This applies to all uses of SId
,
SIdRef
, and derived types.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, check, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The exception to this rule is that for InitialAssignment
, EventAssignment
,
AssignmentRule
, and RateRule
objects, the getId() function and the isSetId()
functions (though not the setId() or unsetId() functions) would instead
reference the value of the 'variable' attribute (for the rules and event
assignments) or the 'symbol' attribute (for initial assignments).
The AlgebraicRule
fell into this category as well, though because it
contained neither a 'variable' nor a 'symbol' attribute, getId() would
always return an empty string, and isSetId() would always return false.
For this reason, four new functions are now provided
(getIdAttribute(), setIdAttribute(String),
isSetIdAttribute(), and unsetIdAttribute()) that will always
act on the actual 'id' attribute, regardless of the object's type. The
new functions should be used instead of the old ones unless the old behavior
is somehow necessary.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have identifiers). If the object in question does not posess an 'id' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the identifier to be set, nor will it read or write 'id' attributes for those objects.
public boolean isSetName()
true
if this FluxObjective
's 'name' attribute is
set.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The 'name' attribute is
optional and is not intended to be used for cross-referencing purposes
within a model. Its purpose instead is to provide a human-readable
label for the component. The data type of 'name' is the type
string
defined in XML Schema. SBML imposes no
restrictions as to the content of 'name' attributes beyond those
restrictions defined by the string
type in XML Schema.
The recommended practice for handling 'name' is as follows. If a software tool has the capability for displaying the content of 'name' attributes, it should display this content to the user as a component's label instead of the component's 'id'. If the user interface does not have this capability (e.g., because it cannot display or use special characters in symbol names), or if the 'name' attribute is missing on a given component, then the user interface should display the value of the 'id' attribute instead. (Script language interpreters are especially likely to display 'id' instead of 'name'.)
As a consequence of the above, authors of systems that automatically generate the values of 'id' attributes should be aware some systems may display the 'id''s to the user. Authors therefore may wish to take some care to have their software create 'id' values that are: (a) reasonably easy for humans to type and read and (b) likely to be meaningful, for example by making the 'id' attribute be an abbreviated form of the name attribute value.
An additional point worth mentioning is although there are restrictions on the uniqueness of 'id' values, there are no restrictions on the uniqueness of 'name' values in a model. This allows software applications leeway in assigning component identifiers.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have names). If the object in question does not posess a 'name' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the name to be set, nor will it read or write 'name' attributes for those objects.
isSetName
 in class SBase
true
if the 'name' attribute of this SBML object is
set, false
otherwise.
FluxObjective.getName()
,
FluxObjective.setName(String sid)
,
FluxObjective.unsetName()
public boolean isSetReaction()
true
if this FluxObjective
's 'reaction' attribute
is set.
true
if this FluxObjective
's 'reaction' attribute has been set,
otherwise false
is returned.public boolean isSetCoefficient()
true
if this FluxObjective
's 'coefficient'
attribute is set.
true
if this FluxObjective
's 'coefficient' attribute has been
set, otherwise false
is returned.public int setId(java.lang.String sid)
FluxObjective
.
The string sid
is copied.
The identifier given by an object's 'id' attribute value
is used to identify the object within the SBML model definition.
Other objects can refer to the component using this identifier. The
data type of 'id' is always SId
or a type derived
from that, such as UnitSId
, depending on the object in
question. All data types are defined as follows:
letter .= 'a'..'z','A'..'Z' digit .= '0'..'9' idChar .= letter | digit | '_' SId .= ( letter | '_' ) idChar*
The characters (
and )
are used for grouping, the
character *
'zero or more times', and the character
|
indicates logical 'or'. The equality of SBML identifiers is
determined by an exact character sequence match i.e., comparisons must be
performed in a case-sensitive manner. This applies to all uses of SId
,
SIdRef
, and derived types.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, check, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The exception to this rule is that for InitialAssignment
, EventAssignment
,
AssignmentRule
, and RateRule
objects, the getId() function and the isSetId()
functions (though not the setId() or unsetId() functions) would instead
reference the value of the 'variable' attribute (for the rules and event
assignments) or the 'symbol' attribute (for initial assignments).
The AlgebraicRule
fell into this category as well, though because it
contained neither a 'variable' nor a 'symbol' attribute, getId() would
always return an empty string, and isSetId() would always return false.
For this reason, four new functions are now provided
(getIdAttribute(), setIdAttribute(String),
isSetIdAttribute(), and unsetIdAttribute()) that will always
act on the actual 'id' attribute, regardless of the object's type. The
new functions should be used instead of the old ones unless the old behavior
is somehow necessary.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have identifiers). If the object in question does not posess an 'id' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the identifier to be set, nor will it read or write 'id' attributes for those objects.
setId
 in class SBase
sid
- the string to use as the identifier of this object.
SBase.getIdAttribute()
,
SBase.setIdAttribute(String sid)
,
SBase.isSetIdAttribute()
,
SBase.unsetIdAttribute()
public int setName(java.lang.String name)
public int setReaction(java.lang.String reaction)
FluxObjective
.
reaction
- the value of the 'reaction' attribute to be set.
public int setCoefficient(double coefficient)
FluxObjective
.
coefficient
- the value of the 'coefficient' attribute to be set.
public int unsetId()
FluxObjective
.
The identifier given by an object's 'id' attribute value
is used to identify the object within the SBML model definition.
Other objects can refer to the component using this identifier. The
data type of 'id' is always SId
or a type derived
from that, such as UnitSId
, depending on the object in
question. All data types are defined as follows:
letter .= 'a'..'z','A'..'Z' digit .= '0'..'9' idChar .= letter | digit | '_' SId .= ( letter | '_' ) idChar*
The characters (
and )
are used for grouping, the
character *
'zero or more times', and the character
|
indicates logical 'or'. The equality of SBML identifiers is
determined by an exact character sequence match i.e., comparisons must be
performed in a case-sensitive manner. This applies to all uses of SId
,
SIdRef
, and derived types.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, check, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The exception to this rule is that for InitialAssignment
, EventAssignment
,
AssignmentRule
, and RateRule
objects, the getId() function and the isSetId()
functions (though not the setId() or unsetId() functions) would instead
reference the value of the 'variable' attribute (for the rules and event
assignments) or the 'symbol' attribute (for initial assignments).
The AlgebraicRule
fell into this category as well, though because it
contained neither a 'variable' nor a 'symbol' attribute, getId() would
always return an empty string, and isSetId() would always return false.
For this reason, four new functions are now provided
(getIdAttribute(), setIdAttribute(String),
isSetIdAttribute(), and unsetIdAttribute()) that will always
act on the actual 'id' attribute, regardless of the object's type. The
new functions should be used instead of the old ones unless the old behavior
is somehow necessary.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have identifiers). If the object in question does not posess an 'id' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the identifier to be set, nor will it read or write 'id' attributes for those objects.
unsetId
 in class SBase
SBase.getIdAttribute()
,
SBase.setIdAttribute(String sid)
,
SBase.isSetIdAttribute()
,
SBase.unsetIdAttribute()
public int unsetName()
FluxObjective
.
In SBML Level 3 Version 2, the 'id' and 'name' attributes were
moved to SBase
directly, instead of being defined individually for many
(but not all) objects. Libsbml has for a long time provided functions
defined on SBase
itself to get, set, and unset those attributes, which
would fail or otherwise return empty strings if executed on any object
for which those attributes were not defined. Now that all SBase
objects
define those attributes, those functions now succeed for any object with
the appropriate level and version.
The 'name' attribute is
optional and is not intended to be used for cross-referencing purposes
within a model. Its purpose instead is to provide a human-readable
label for the component. The data type of 'name' is the type
string
defined in XML Schema. SBML imposes no
restrictions as to the content of 'name' attributes beyond those
restrictions defined by the string
type in XML Schema.
The recommended practice for handling 'name' is as follows. If a software tool has the capability for displaying the content of 'name' attributes, it should display this content to the user as a component's label instead of the component's 'id'. If the user interface does not have this capability (e.g., because it cannot display or use special characters in symbol names), or if the 'name' attribute is missing on a given component, then the user interface should display the value of the 'id' attribute instead. (Script language interpreters are especially likely to display 'id' instead of 'name'.)
As a consequence of the above, authors of systems that automatically generate the values of 'id' attributes should be aware some systems may display the 'id''s to the user. Authors therefore may wish to take some care to have their software create 'id' values that are: (a) reasonably easy for humans to type and read and (b) likely to be meaningful, for example by making the 'id' attribute be an abbreviated form of the name attribute value.
An additional point worth mentioning is although there are restrictions on the uniqueness of 'id' values, there are no restrictions on the uniqueness of 'name' values in a model. This allows software applications leeway in assigning component identifiers.
Regardless of the level and version of the SBML, these functions allow client applications to use more generalized code in some situations (for instance, when manipulating objects that are all known to have names). If the object in question does not posess a 'name' attribute according to the SBML specification for the Level and Version in use, libSBML will not allow the name to be set, nor will it read or write 'name' attributes for those objects.
unsetName
 in class SBase
FluxObjective.getName()
,
FluxObjective.setName(String sid)
,
FluxObjective.isSetName()
public int unsetReaction()
FluxObjective
.
public int unsetCoefficient()
FluxObjective
.
public void renameSIdRefs(java.lang.String oldid, java.lang.String newid)
Replaces all uses of a given SIdRef
type attribute value with another
value.
In SBML, object identifiers are of a data type called SId
.
In SBML Level 3, an explicit data type called SIdRef
was
introduced for attribute values that refer to SId
values in
previous Levels of SBML, this data type did not exist and attributes were
simply described to as 'referring to an identifier', but the effective
data type was the same as SIdRef
in Level 3. These and
other methods of libSBML refer to the type SIdRef
for all
Levels of SBML, even if the corresponding SBML specification did not
explicitly name the data type.
This method works by looking at all attributes and (if appropriate)
mathematical formulas in MathML content, comparing the referenced
identifiers to the value of oldid
. If any matches are found, the
matching values are replaced with newid
. The method does not
descend into child elements.
renameSIdRefs
 in class SBase
oldid
- the old identifier.newid
- the new identifier.public java.lang.String getElementName()
For FluxObjective
, the XML element name is always 'fluxObjective'.
getElementName
 in class SBase
'fluxObjective'.
public int getTypeCode()
LibSBML attaches an identifying code to every kind of SBML object. These
are integer constants known as SBML type codes. The names of all
the codes begin with the characters SBML_
.
In the Java language interface for libSBML, the
type codes are defined as static integer constants in the interface class
libsbmlConstants
. Note that different Level 3
package plug-ins may use overlapping type codes to identify the package
to which a given object belongs, call the getPackageName()
method on the object.
getTypeCode
 in class SBase
SBML_FBC_FLUXOBJECTIVE
(default).
FluxObjective.getElementName()
,
SBase.getPackageName()
public boolean hasRequiredAttributes()
true
if all the required attributes
for this FluxObjective
object have been set.
hasRequiredAttributes
 in class SBase
FluxObjective
object are: