Class SimpleStateObject
- 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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- All Implemented Interfaces:
StateObject
- Direct Known Subclasses:
AbstractSchemaNameStateObject,BadExpressionStateObject,DateTimeStateObject,EntityTypeLiteralStateObject,EnumTypeStateObject,IdentificationVariableStateObject,InputParameterStateObject,KeywordExpressionStateObject,NumericLiteralStateObject,StringLiteralStateObject,UnknownExpressionStateObject
public abstract class SimpleStateObject extends AbstractStateObject
ThisStateObjectsimply holds onto a string.- Version:
- 2.4
- Author:
- Pascal Filion
- Since:
- 2.4
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Field Summary
Fields Modifier and Type Field Description static java.lang.StringTEXT_PROPERTYNotifies the text property has changed.
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Constructor Summary
Constructors Modifier Constructor Description protectedSimpleStateObject(StateObject parent)Creates a newSimpleStateObject.protectedSimpleStateObject(StateObject parent, java.lang.String text)Creates a newSimpleStateObject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.StringgetText()Returns the text held by this state object.booleanhasText()Determines whether this state object is holding a non-empty string.booleanisEquivalent(StateObject stateObject)Determines whether the givenStateObjectis equivalent to this one, i.e. the information of bothStateObjectis the same.voidsetText(java.lang.String text)Sets the text held by this state object.protected voidsetTextInternally(java.lang.String text)Sets the text to the given value without notifying the listeners.protected voidtoTextInternal(java.lang.Appendable writer)Prints out a string representation of thisStateObject, which should not be used to define atruestring representation of a JPQL query but should be used for debugging purposes.-
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, getExpression, 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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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.persistence.jpa.jpql.tools.model.query.StateObject
accept
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Field Detail
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TEXT_PROPERTY
public static final java.lang.String TEXT_PROPERTY
Notifies the text property has changed.- See Also:
- Constant Field Values
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Constructor Detail
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SimpleStateObject
protected SimpleStateObject(StateObject parent)
Creates a newSimpleStateObject.- Parameters:
parent- The parent of this state object, which cannot benull- Throws:
java.lang.NullPointerException- The given parent cannot benull
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SimpleStateObject
protected SimpleStateObject(StateObject parent, java.lang.String text)
Creates a newSimpleStateObject.- Parameters:
parent- The parent of this state object, which cannot benulltext- The text held by this state object- Throws:
java.lang.NullPointerException- The given parent cannot benull
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Method Detail
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getText
public java.lang.String getText()
Returns the text held by this state object.- Returns:
- This model's text value
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hasText
public boolean hasText()
Determines whether this state object is holding a non-empty string.- Returns:
trueif the text is non-empty;falseotherwise
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isEquivalent
public boolean isEquivalent(StateObject stateObject)
Determines whether the givenStateObjectis equivalent to this one, i.e. the information of bothStateObjectis the same.- Specified by:
isEquivalentin interfaceStateObject- Overrides:
isEquivalentin classAbstractStateObject- Parameters:
stateObject- TheStateObjectto compare its content to this one- Returns:
trueif both object are equivalent;falseotherwise
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setText
public void setText(java.lang.String text)
Sets the text held by this state object.- Parameters:
text- This model's text value
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setTextInternally
protected void setTextInternally(java.lang.String text)
Sets the text to the given value without notifying the listeners.- Parameters:
text- This model's text value
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toTextInternal
protected void toTextInternal(java.lang.Appendable writer) throws java.io.IOExceptionPrints out a string representation of thisStateObject, which should not be used to define atruestring representation of a JPQL query but should be used for debugging purposes.- Specified by:
toTextInternalin classAbstractStateObject- Parameters:
writer- The writer used to print out the string representation- Throws:
java.io.IOException- This should never happens, it is only required becauseAppendableis used instead of any concrete class
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