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java.lang.Objectorg.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.model.query.AbstractEncapsulatedExpressionStateObject
org.eclipse.persistence.jpa.jpql.model.query.AbstractSingleEncapsulatedExpressionStateObject
org.eclipse.persistence.jpa.jpql.model.query.EncapsulatedIdentificationVariableExpressionStateObject
org.eclipse.persistence.jpa.jpql.model.query.KeyExpressionStateObject
public class KeyExpressionStateObject
This object represents an identification variable that maps the keys of a Map.
This is part of JPA 2.0.
KEY(identification_variable)
KeyExpression| Field Summary |
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| Fields inherited from class org.eclipse.persistence.jpa.jpql.model.query.EncapsulatedIdentificationVariableExpressionStateObject |
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IDENTIFICATION_VARIABLE_PROPERTY |
| Fields inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractSingleEncapsulatedExpressionStateObject |
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STATE_OBJECT_PROPERTY |
| Constructor Summary | |
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KeyExpressionStateObject(StateObject parent)
Creates a new KeyExpressionStateObject. |
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KeyExpressionStateObject(StateObject parent,
java.lang.String identificationVariable)
Creates a new KeyExpressionStateObject. |
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| Method Summary | |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this StateObject by the given visitor. |
KeyExpression |
getExpression()
Returns the actual parsed object if this StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
java.lang.String |
getIdentifier()
Returns the JPQL identifier of the expression represented by this AbstractSingleEncapsulatedExpressionStateObject. |
protected IType |
resolveType()
Resolves the IType of the property handled by this object. |
void |
setExpression(KeyExpression expression)
Keeps a reference of the parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects. |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.EncapsulatedIdentificationVariableExpressionStateObject |
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checkIntegrity, clearResolvedObjects, getIdentificationVariable, getManagedType, getQueryBNFId, getStateObject, getType, getTypeDeclaration, hasIdentificationVariable, initialize, resolveManagedType, resolveTypeDeclaration, setIdentificationVariable |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractSingleEncapsulatedExpressionStateObject |
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addChildren, hasStateObject, isEquivalent, parse, setStateObject, toTextEncapsulatedExpression |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractEncapsulatedExpressionStateObject |
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toTextInternal |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject |
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acceptUnknownVisitor, acceptUnknownVisitor, 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, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public KeyExpressionStateObject(StateObject parent)
KeyExpressionStateObject.
parent - The parent of this state object, which cannot be null
java.lang.NullPointerException - The given parent cannot be nullpublic KeyExpressionStateObject(StateObject parent, java.lang.String identificationVariable)
KeyExpressionStateObject.
parent - The parent of this state object, which cannot be nullidentificationVariable - The identification variable
java.lang.NullPointerException - The given parent cannot be null| Method Detail |
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public void accept(StateObjectVisitor visitor)
StateObject by the given visitor.
visitor - The visitor to visit this objectpublic KeyExpression getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.
getExpression in interface StateObjectgetExpression in class EncapsulatedIdentificationVariableExpressionStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
AbstractSingleEncapsulatedExpressionStateObject.
getIdentifier in class AbstractEncapsulatedExpressionStateObjectprotected IType resolveType()
IType of the property handled by this object.
resolveType in class EncapsulatedIdentificationVariableExpressionStateObjectIType that was resolved by this object or the IType for
IType.UNRESOLVABLE_TYPE if it could not be resolvedpublic void setExpression(KeyExpression expression)
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects.
expression - The parsed object representing a KEY
expression
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