Class DeleteStatementStateObject
- java.lang.Object
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- org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
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- org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractModifyStatementStateObject
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- org.eclipse.persistence.jpa.jpql.tools.model.query.DeleteStatementStateObject
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- All Implemented Interfaces:
StateObject
public class DeleteStatementStateObject extends AbstractModifyStatementStateObject
Bulk delete operation apply to entities of a single entity class (together with its subclasses, if any).BNF:delete_statement ::= delete_clause [where_clause]- Version:
- 2.4
- See Also:
DeleteStatement- Author:
- Pascal Filion
- Since:
- 2.4
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Field Summary
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Fields inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractModifyStatementStateObject
WHERE_CLAUSE_PROPERTY
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Constructor Summary
Constructors Constructor Description DeleteStatementStateObject(JPQLQueryStateObject parent)Creates a newDeleteStatementStateObject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaccept(StateObjectVisitor visitor)Visits thisStateObjectby the givenvisitor.protected AbstractModifyClauseStateObjectbuildModifyClause()Creates the actualAbstractModifyClauseStateObjectthat represents the modify clause.DeleteStatementgetExpression()Returns the actual parsed object if thisStateObjectrepresentation of the JPQL query was created by parsing an existing JPQL query.DeleteClauseStateObjectgetModifyClause()Returns the state object representing theDELETEclause.voidsetExpression(DeleteStatement expression)Keeps a reference of theparsed objectobject, 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
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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 Detail
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DeleteStatementStateObject
public DeleteStatementStateObject(JPQLQueryStateObject parent)
Creates a newDeleteStatementStateObject.- Parameters:
parent- The parent of this state object, which cannot benull- Throws:
java.lang.NullPointerException- The given parent cannot benull
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Method Detail
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accept
public void accept(StateObjectVisitor visitor)
Visits thisStateObjectby the givenvisitor.- Parameters:
visitor- Thevisitorto visit this object
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buildModifyClause
protected AbstractModifyClauseStateObject buildModifyClause()
Creates the actualAbstractModifyClauseStateObjectthat represents the modify clause.- Specified by:
buildModifyClausein classAbstractModifyStatementStateObject- Returns:
- The modify clause part of this modify statement
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getExpression
public DeleteStatement getExpression()
Returns the actual parsed object if thisStateObjectrepresentation of the JPQL query was created by parsing an existing JPQL query.- Specified by:
getExpressionin interfaceStateObject- Overrides:
getExpressionin classAbstractStateObject- Returns:
- The parsed object when a JPQL query is parsed and converted into a
StateObjectornullwhen the JPQL query is manually created (i.e. not from a string)
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getModifyClause
public DeleteClauseStateObject getModifyClause()
Returns the state object representing theDELETEclause.- Overrides:
getModifyClausein classAbstractModifyStatementStateObject- Returns:
- The state object representing the
DELETEclause, which is nevernull
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setExpression
public void setExpression(DeleteStatement expression)
Keeps a reference of theparsed objectobject, which should only be done when this object is instantiated during the conversion of a parsed JPQL query intoStateObjects.- Parameters:
expression- Theparsed objectrepresenting aDELETEstatement
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