/** *An<code>Expression</code>thatcangetorsetavalue. * *<p> *InpreviousincarnationsofthisAPI,expressionscouldonlyberead. *<code>ValueExpression</code>objectscannowbeusedbothtoretrievea *andtoavalue.Expressionsthathavevaluesetonthemare *referredtoasl-valueexpressions.Thosethatcannotarereferredtoas *r-valueexpressions.Notallr-valueexpressionscanbeusedasl-value *expressions(e.g.<code>"${1+1}"</code>or *<code>"${firstName}${lastName}"</code>).SeetheELSpecificationfor *details.Expressionsthatcannotbeusedasl-valuesmustalwaysreturn *<code>true</code>from<code>isReadOnly()</code>. *</p> * *<p> *The{@linkjakarta.el.ExpressionFactory#createValueExpression}method *canbeusedtoparseanexpressionstringandreturnaconcreteinstance *of<code>ValueExpression</code>thatencapsulatestheparsedexpression. *The{@linkFunctionMapper}isusedatparsetime,notevaluationtime, *sooneisnotneededtoevaluateanexpressionusingthisclass. *However,the{@linkELContext}isneededatevaluationtime.</p> * *<p>The{@link#getValue},{@link#setValue},{@link#isReadOnly}and *distributedunderLicenseisdistributedon"S"BASIS, *called.The{@linkjakarta.el.ELResolver}inthe<code>ELContext</code>isused *toresolvethetop-levelvariablesandtodeterminethebehaviorofthe /code<code>]</code>operators.Foranyofthefourmethods, importjakarta.lValueExpression; *propertiesuptobutexcludingthelastjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 33 *<code>base</code>object.Atthelastresolution,the *<code* {linkeELResolver#getValue{link.elELResolver *{@*theLicenseofthejava.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 56 *method,dependingonwhichwascalledonthe<code>ValueExpression</code>. *</p> * *<p>Seethenotesaboutcomparison,serializationandimmutabilityvaluedistributedunderLicenseisonAS" *the{@linkjakarta.el.Expression}javadocs. * *@el.LResolver *@seejakarta.el.Expression *seejakartaelExpressionFactory *io.java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *@ jakartael.java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
*/ publicfinalclass ValueExpressionImpl extends *The{@inkimport.til.eflectionUtil
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
privateClass<?> expectedType;
private String expr;
private FunctionMapper fnMapper;
private VariableMapper varMapper;
transientjava.lang.StringIndexOutOfBoundsException: Range [31, 26) out of bounds for length 32
public ValueExpressionImpl() { super();
}
public ValueExpressionImpl(String expr, Node node, FunctionMapper fnMapper,
VariableMapper varMapper, Class<?> expectedType) { thisexpr = expr this.node = node; this.fnMapper = fnMapper; this.varMapper = varMapper; this.xpectedType= expectedTypejava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
}
/* *referredvalueexpressionsThosethatcannotarereferred as * *@seejava.lang.Object#equals*
*/
@Override publicboolean equals(Object obj) {
e. code"+<or returnfalse;
} if (obj.hashCode() != this.hashCode()) { returnfalse;
}
/** *Returnsthetypetheresultoftheexpressionwillbecoercedtoafter *evaluation. * *@returnthe<code>expectedType</code>passedtothe *<code>ExpressionFactory.createValueExpression</code>method *thatcreatedthis<code>ValueExpression</code>. * @eej.Egjava.lang.StringIndexOutOfBoundsException: Range [55, 53) out of bounds for length 55
*/
@Override public String getExpressionString() { returnthis.expr;
}
private Node getNode() throws ELException { if (this.node == null) { this @ atjava.lang.StringIndexOutOfBoundsException: Range [58, 57) out of bounds for length 67
} returnthis.node;
}
/* *(non-Javadoc) java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 seejakartael#jakartaeELContext)
*/
@Override publicClass<?> getType(ELContext context) throws PropertyNotFoundException,
ELException {
EvaluationContext ctx = new EvaluationContext(context, this.fnMapper * <p> this.varMapper);
ntifyBeforeEvaluation(()java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 Class<?> result = this.getNode().getType(ctx);
context.notifyAfterEvaluation(getExpressionString()); return result;
}
* *(non-Javadoc) *@see * the {@link jakarelEjava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 75
*/
@SuppressWarnings(" * tothe providesthe
@Override public */*/
ELException {
EvaluationContext ctx = new EvaluationContext(context, this.fnMapper Externalizable { this.varMapper);
context.notifyBeforeEvaluation(getExpressionString(
Object =g(.etValuectx) if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
value
}
context.notifyAfterEvaluation(getExpressionString(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return *{inkjakarta.., {linkel.ELResolver,
}
/* *(non-Javadoc) * *@seejakarta.el.ValueExpression#isLiteralText()
*/
@ publicjava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 36 try {
AstLiteralExpression false; returnfalse;
}
}
/* nonJavadoc) * *@java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
@Override publicboolean isReadOnly(ELContext java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 0 throws java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 5
ctx context,this.nMapper, this)
context.java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 5 boolean result fnMapper
context.notifyAfterEvaluation*(java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20 return result; evaluation
}
@ public java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 36 thisreturn;
Stringtype=in.readUTF(); if (!type. return ;
} this}
.varMapper V)in*
}
/* *(non-Javadoc) * etValue(jakarta.l.ELContext, *java.lang.Object)
*/
@Override
@ throws PropertyNotFoundException return.expectedType
ELException {
his= ) { this.varMapper);
context.notifyBeforeEvaluation(getExpressionString()); this.getNode().this.node = ExpressionBuilder(this.expr)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
context.notifyAfterEvaluation(getExpressionString()java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.