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java.lang.Objectorg.geotools.filter.expression.ExpressionAbstract
org.geotools.filter.DefaultExpression
org.geotools.filter.FunctionExpressionImpl
org.geotools.filter.function.IDFunction
public class IDFunction
Allow access to the value of Feature.getID() as an expression
Field Summary |
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Fields inherited from class org.geotools.filter.FunctionExpressionImpl |
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fallback, name, params |
Fields inherited from class org.geotools.filter.DefaultExpression |
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expressionType, permissiveConstruction |
Fields inherited from interface org.geotools.filter.ExpressionType |
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ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_LONG, LITERAL_STRING, LITERAL_UNDECLARED, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT |
Fields inherited from interface org.opengis.filter.expression.Expression |
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NIL |
Constructor Summary | |
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IDFunction()
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Method Summary | |
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int |
getArgCount()
Gets the number of arguments that are set. |
java.lang.Object |
getValue(java.lang.Object obj)
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java.lang.String |
toString()
Creates a String representation of this Function with the function name and the arguments. |
Methods inherited from class org.geotools.filter.FunctionExpressionImpl |
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accept, equals, getArgs, getExpression, getFallbackValue, getImplementationHints, getName, getParameters, getType, setArgs, setFallbackValue, setName, setParameters |
Methods inherited from class org.geotools.filter.DefaultExpression |
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accept, evaluate, evaluate, getValue, isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression, isMathExpression |
Methods inherited from class org.geotools.filter.expression.ExpressionAbstract |
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eval, eval, evaluate |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.geotools.filter.Expression |
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accept, evaluate, getValue |
Methods inherited from interface org.opengis.filter.expression.Expression |
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evaluate, evaluate |
Constructor Detail |
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public IDFunction()
Method Detail |
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public int getArgCount()
FunctionExpressionImpl
getArgCount
in interface FunctionExpression
getArgCount
in class FunctionExpressionImpl
public java.lang.String toString()
FunctionExpressionImpl
toString
in class FunctionExpressionImpl
public java.lang.Object getValue(java.lang.Object obj)
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