Class AndOperator
- java.lang.Object
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- org.apache.taglibs.standard.lang.jstl.BinaryOperator
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- org.apache.taglibs.standard.lang.jstl.AndOperator
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public class AndOperator extends BinaryOperator
The implementation of the and operator
- Version:
- $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
- Author:
- Nathan Abramson - Art Technology Group
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Field Summary
Fields Modifier and Type Field Description static AndOperator
SINGLETON
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Constructor Summary
Constructors Constructor Description AndOperator()
Constructor
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
apply(java.lang.Object pLeft, java.lang.Object pRight, java.lang.Object pContext, Logger pLogger)
Applies the operator to the given valuejava.lang.String
getOperatorSymbol()
Returns the symbol representing the operatorboolean
shouldCoerceToBoolean()
Returns true if the operator expects its arguments to be coerced to Booleans.boolean
shouldEvaluate(java.lang.Object pLeft)
Returns true if evaluation is necessary given the specified Left value.
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Field Detail
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SINGLETON
public static final AndOperator SINGLETON
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Method Detail
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getOperatorSymbol
public java.lang.String getOperatorSymbol()
Returns the symbol representing the operator- Specified by:
getOperatorSymbol
in classBinaryOperator
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apply
public java.lang.Object apply(java.lang.Object pLeft, java.lang.Object pRight, java.lang.Object pContext, Logger pLogger) throws ELException
Applies the operator to the given value- Specified by:
apply
in classBinaryOperator
- Throws:
ELException
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shouldEvaluate
public boolean shouldEvaluate(java.lang.Object pLeft)
Returns true if evaluation is necessary given the specified Left value. The And/OrOperators make use of this- Overrides:
shouldEvaluate
in classBinaryOperator
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shouldCoerceToBoolean
public boolean shouldCoerceToBoolean()
Returns true if the operator expects its arguments to be coerced to Booleans. The And/Or operators set this to true.- Overrides:
shouldCoerceToBoolean
in classBinaryOperator
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