Class InputParameterStateObject
java.lang.Object
org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.SimpleStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.InputParameterStateObject
- All Implemented Interfaces:
StateObject
Either positional or named parameters may be used. Positional and named parameters may not be
mixed in a single query. Input parameters can only be used in the
WHERE
clause or HAVING
clause of a query.- Since:
- 2.4
- Version:
- 2.4
- See Also:
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Field Summary
Fields inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.SimpleStateObject
TEXT_PROPERTY
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Constructor Summary
ConstructorDescriptionInputParameterStateObject
(StateObject parent) Creates a newInputParameterStateObject
.InputParameterStateObject
(StateObject parent, String parameter) Creates a newInputParameterStateObject
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Method Summary
Modifier and TypeMethodDescriptionvoid
accept
(StateObjectVisitor visitor) Visits thisStateObject
by the givenvisitor
.Returns the actual parsed object if thisStateObject
representation of the JPQL query was created by parsing an existing JPQL query.boolean
isNamed()
Determines whether this parameter is a positional parameter, i.e.boolean
Determines whether this parameter is a positional parameter, i.e.void
setExpression
(InputParameter expression) Keeps a reference of theparsed object
object, which should only be done when this object is instantiated during the conversion of a parsed JPQL query intoStateObjects
.Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.SimpleStateObject
getText, hasText, isEquivalent, setText, setTextInternally, toTextInternal
Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
acceptUnknownVisitor, acceptUnknownVisitor, addChildren, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText
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Constructor Details
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InputParameterStateObject
Creates a newInputParameterStateObject
.- Parameters:
parent
- The parent of this state object, which cannot benull
- Throws:
NullPointerException
- The given parent cannot benull
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InputParameterStateObject
Creates a newInputParameterStateObject
.- Parameters:
parent
- The parent of this state object, which cannot benull
parameter
- The positional or named input parameter- Throws:
NullPointerException
- The given parent cannot benull
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Method Details
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accept
Description copied from interface:StateObject
Visits thisStateObject
by the givenvisitor
.- Parameters:
visitor
- Thevisitor
to visit this object
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getExpression
Description copied from interface:StateObject
Returns the actual parsed object if thisStateObject
representation of the JPQL query was created by parsing an existing JPQL query.- Specified by:
getExpression
in interfaceStateObject
- Overrides:
getExpression
in classAbstractStateObject
- Returns:
- The parsed object when a JPQL query is parsed and converted into a
StateObject
ornull
when the JPQL query is manually created (i.e. not from a string)
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isNamed
public boolean isNamed()Determines whether this parameter is a positional parameter, i.e. the parameter type is '?'.- Returns:
true
if the parameter type is '?';false
if it's ':'
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isPositional
public boolean isPositional()Determines whether this parameter is a positional parameter, i.e. the parameter type is ':'.- Returns:
true
if the parameter type is ':';false
if it's '?'
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setExpression
Keeps a reference of theparsed object
object, which should only be done when this object is instantiated during the conversion of a parsed JPQL query intoStateObjects
.- Parameters:
expression
- Theparsed object
representing an input parameter
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