Class StringLiteralStateObject
- 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.SimpleStateObject
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- org.eclipse.persistence.jpa.jpql.tools.model.query.StringLiteralStateObject
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- All Implemented Interfaces:
StateObject
public class StringLiteralStateObject extends SimpleStateObject
A string literal is enclosed in single quotes. For example: 'literal'. A string literal that includes a single quote is represented by two single quotes. For example: 'literal''s'. String literals in queries, like Java String literals, use unicode character encoding. Approximate literals support the use Java floating point literal syntax as well as SQL approximate numeric literal syntax. Enum literals support the use of Java enum literal syntax. The enum class name must be specified. Appropriate suffixes may be used to indicate the specific type of a numeric literal in accordance with the Java Language Specification. The boolean literals areTRUEandFALSE. Although predefined reserved literals appear in upper case, they are case insensitive.- Version:
- 2.4
- See Also:
StringLiteral- 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.SimpleStateObject
TEXT_PROPERTY
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Constructor Summary
Constructors Constructor Description StringLiteralStateObject(StateObject parent)Creates a newStringLiteralStateObject.StringLiteralStateObject(StateObject parent, java.lang.String literal)Creates a newStringLiteralStateObject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaccept(StateObjectVisitor visitor)Visits thisStateObjectby the givenvisitor.StringLiteralgetExpression()Returns the actual parsed object if thisStateObjectrepresentation of the JPQL query was created by parsing an existing JPQL query.java.lang.StringgetUnquotedText()Returns the string literal without the single quotes.booleanhasCloseQuote()Determines whether the closing quote was present or not.voidsetExpression(StringLiteral 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.SimpleStateObject
getText, hasText, isEquivalent, setText, setTextInternally, toTextInternal
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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 Detail
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StringLiteralStateObject
public StringLiteralStateObject(StateObject parent)
Creates a newStringLiteralStateObject.- Parameters:
parent- The parent of this state object, which cannot benull- Throws:
java.lang.NullPointerException- The given parent cannot benull
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StringLiteralStateObject
public StringLiteralStateObject(StateObject parent, java.lang.String literal)
Creates a newStringLiteralStateObject.- Parameters:
parent- The parent of this state object, which cannot benullliteral- The string literal- 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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getExpression
public StringLiteral 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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getUnquotedText
public java.lang.String getUnquotedText()
Returns the string literal without the single quotes.- Returns:
- The unquoted text
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hasCloseQuote
public boolean hasCloseQuote()
Determines whether the closing quote was present or not.- Returns:
trueif the literal is ended by a single quote;falseotherwise
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setExpression
public void setExpression(StringLiteral 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 a string literal
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