Class DeleteStatementStateObject
java.lang.Object
org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractModifyStatementStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.DeleteStatementStateObject
- All Implemented Interfaces:
StateObject
Bulk delete operation apply to entities of a single entity class (together with its subclasses,
if any).
BNF: delete_statement ::= delete_clause [where_clause]
- 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.AbstractModifyStatementStateObject
WHERE_CLAUSE_PROPERTY
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Constructor Summary
ConstructorDescriptionCreates a newDeleteStatementStateObject
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Method Summary
Modifier and TypeMethodDescriptionvoid
accept
(StateObjectVisitor visitor) Visits thisStateObject
by the givenvisitor
.protected AbstractModifyClauseStateObject
Creates the actualAbstractModifyClauseStateObject
that represents the modify clause.Returns the actual parsed object if thisStateObject
representation of the JPQL query was created by parsing an existing JPQL query.Returns the state object representing theDELETE
clause.void
setExpression
(DeleteStatement 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.AbstractModifyStatementStateObject
addChildren, addWhereClause, getAbstractSchemaName, getAbstractSchemaNameStateObject, getDeclaration, getEntity, getIdentificationVariable, getIdentificationVariableStateObject, getParent, getRangeVariableDeclaration, getWhereClause, hasWhereClause, initialize, isEquivalent, removeWhereClause, setConditionalStateObject, setDeclaration, setDeclaration, setDeclaration, setDeclaration, setEntity, setEntityName, setIdentificationVariable, toggleWhereClause, toTextInternal
Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText
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Constructor Details
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DeleteStatementStateObject
Creates a newDeleteStatementStateObject
.- Parameters:
parent
- The parent of this state object, which cannot benull
- 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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buildModifyClause
Description copied from class:AbstractModifyStatementStateObject
Creates the actualAbstractModifyClauseStateObject
that represents the modify clause.- Specified by:
buildModifyClause
in classAbstractModifyStatementStateObject
- Returns:
- The modify clause part of this modify statement
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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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getModifyClause
Returns the state object representing theDELETE
clause.- Overrides:
getModifyClause
in classAbstractModifyStatementStateObject
- Returns:
- The state object representing the
DELETE
clause, which is nevernull
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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 aDELETE
statement
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