org.kuali.rice.krms.api.repository.proposition

Class PropositionDefinition

java.lang.Object

org.kuali.rice.core.api.mo.AbstractDataTransferObject

org.kuali.rice.krms.api.repository.proposition.PropositionDefinition

All Implemented Interfaces:

Serializable, Identifiable, Versioned, ModelObjectBasic, ModelObjectComplete, PropositionDefinitionContract

public final class PropositionDefinition
extends AbstractDataTransferObject
implements PropositionDefinitionContract

Concrete model object implementation of KRMS Proposition. Immutable. Instances of Proposition can be (un)marshalled to and from XML. There are three main types of Propositions: 1. Compound Propositions - a proposition consisting of other propositions and a boolean algebra operator (AND, OR) defining how to evaluate those propositions. 2. Parameterized Propositions - a proposition which is parameterized by some set of values, evaluation logic is implemented by hand and returns true or false 3. Simple Propositions - a proposition of the form lhs op rhs where lhs=left-hand side, rhs=right-hand side, and op=operator Propositions are reference by a rule or another proposition (in the case of compound propositions). Propositions are never re-used across multiple rules. Each proposition can have zero or more parameters. The proposition parameter is the primary data element used to define the proposition. (@see PropositionParameter)

See Also:

PropositonContract, PropositionParameterContract, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PropositionDefinition.Builder This builder is used to construct instances of KRMS Proposition.
static class	PropositionDefinition.Cache
static class	PropositionDefinition.Elements A private class which exposes constants which define the XML element names to use when this object is marshalled to XML.

Method Summary

Modifier and Type	Method and Description
List<PropositionDefinition>	getCompoundComponents() Returns the propositions which are contained in a compound proposition.
String	getCompoundOpCode() Returns the op code to be used when evaluating compound propositions.
String	getDescription() Returns the description text for the KRMS proposition
String	getId() The unique identifier for an object.
List<PropositionParameter>	getParameters() Returns the parameter list of the proposition.
String	getPropositionTypeCode() There are three main types of Propositions: Compound Propositions - a proposition consisting of other propositions and a boolean algebra operator (AND, OR) defining how to evaluate those propositions.
String	getRuleId() TReturns the ID of the rule this proposition belongs to.
String	getTypeId() Returns the id of Proposition KrmsType of the proposition.
Long	getVersionNumber() Returns the version number for this object.

Methods inherited from class org.kuali.rice.core.api.mo.AbstractDataTransferObject

afterUnmarshal, beforeUnmarshal, equals, equalsExcludeFields, getDefaultHashCodeEqualsExcludeFields, hashCode, hashCodeExcludeFields, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getId

public String getId()

Description copied from interface: Identifiable

The unique identifier for an object. This can be null.

Specified by:

getId in interface Identifiable

Returns:

the id

getDescription

public String getDescription()

Description copied from interface: PropositionDefinitionContract

Returns the description text for the KRMS proposition

Specified by:

getDescription in interface PropositionDefinitionContract

Returns:

description for KRMS type.

getRuleId

public String getRuleId()

Description copied from interface: PropositionDefinitionContract

TReturns the ID of the rule this proposition belongs to. May be null if this proposition has not yet been persisted.

Specified by:

getRuleId in interface PropositionDefinitionContract

Returns:

the ruleId

getTypeId

public String getTypeId()

Description copied from interface: PropositionDefinitionContract

Returns the id of Proposition KrmsType of the proposition. It provides some context to what type of object of the KRMS type.

Specified by:

getTypeId in interface PropositionDefinitionContract

Returns:

the id of the KRMS type.

getPropositionTypeCode

public String getPropositionTypeCode()

Description copied from interface: PropositionDefinitionContract

There are three main types of Propositions: Compound Propositions - a proposition consisting of other propositions and a boolean algebra operator (AND, OR) defining how to evaluate those propositions. Parameterized Propositions - a proposition which is parameterized by some set of values, evaluation logic is implemented by hand and returns true or false Simple Propositions - a proposition of the form lhs op rhs where lhs=left-hand side, rhs=right-hand side, and op=operator

Specified by:

getPropositionTypeCode in interface PropositionDefinitionContract

Returns:

the proposition type code of the proposition

Valid values are C = compound, P = parameterized, S = simple

getParameters

public List<PropositionParameter> getParameters()

Description copied from interface: PropositionDefinitionContract

Returns the parameter list of the proposition. Parameters are listed in Reverse Polish Notation. Parameters may be constants, terms, or functions.

Compound Propositions will have an empty parameter list.

Specified by:

getParameters in interface PropositionDefinitionContract

Returns:

the Parameters related to the proposition

See Also:

PropositionParameter

getCompoundOpCode

public String getCompoundOpCode()

Description copied from interface: PropositionDefinitionContract

Returns the op code to be used when evaluating compound propositions.

Specified by:

getCompoundOpCode in interface PropositionDefinitionContract

Returns:

the compound op code. valid values are A = and, O = or

getCompoundComponents

public List<PropositionDefinition> getCompoundComponents()

Description copied from interface: PropositionDefinitionContract

Returns the propositions which are contained in a compound proposition.

Specified by:

getCompoundComponents in interface PropositionDefinitionContract

Returns:

an ordered list of the Propositions which make up the compound proposition.

getVersionNumber

public Long getVersionNumber()

Description copied from interface: Versioned

Returns the version number for this object. In general, this value should only be null if the object has not yet been stored to a persistent data store. This version number is generally used for the purposes of optimistic locking.

Specified by:

getVersionNumber in interface Versioned

Returns:

the version number, or null if one has not been assigned yet