Class ExpressionParserEngine.Builder<T extends ExpressionParserEngine>
java.lang.Object
ch.andre601.expressionparser.ExpressionParserEngine.Builder<T>
- Type Parameters:
T- Object implementing theExpressionParserEngineinterface.
- Direct Known Subclasses:
DefaultExpressionParserEngine.DefaultBuilder
- Enclosing interface:
ExpressionParserEngine
public abstract static class ExpressionParserEngine.Builder<T extends ExpressionParserEngine>
extends Object
Abstract class that can be used to create a new Builder for a
The class offers a
ExpressionParserEngine.The class offers a
addDefaults() method to populate the Lists and Map with default values
(TokenReaders, Operators and ValueReaders).-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionApplies default values for this Builder class to use.addOperator(Token token, Operator operator) Adds a new Token instance as key with a new Operator instance as value to use by theDefaultExpressionParserEngine.addTokenReader(TokenReader tokenReader) Adds a new TokenReader instance to use by theDefaultExpressionParserEngine.addValueReader(ValueReader valueReader) Adds a new ValueReader instance to use by theDefaultExpressionParserEngine.abstract Tbuild()Method to build a new instance of what this Builder is using.Deprecated.Returns a List of currently set TokenReaders.Returns a List of currently set ValueReaders.
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Constructor Details
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Builder
public Builder()Constructor for creating a new Builder.
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Method Details
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createDefault
Deprecated.Renamed toaddDefaults()for more clarity.
May be removed in a future release.Applies default values for this Builder class to use. Namely:
TokenReaderinstancesOperators
ValueReaders
- Returns:
- This Builder instance with default values applied. Useful for chaining.
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addDefaults
Applies default values for this Builder class to use. Namely:
TokenReaderinstancesOperators
ValueReaders
- Returns:
- This Builder instance with default values applied. Useful for chaining.
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getTokenReaders
Returns a List of currently set TokenReaders.- Returns:
- Possibly-empty List of TokenReaders.
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getOperators
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getValueReaders
Returns a List of currently set ValueReaders.- Returns:
- Possibly-empty List of ValueReaders.
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addTokenReader
Adds a new TokenReader instance to use by theDefaultExpressionParserEngine.- Parameters:
tokenReader- The TokenReader instance to add.- Returns:
- This builder instance after adding the TokenReader. Useful for chaining.
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addOperator
Adds a new Token instance as key with a new Operator instance as value to use by theDefaultExpressionParserEngine.- Parameters:
token- The Token instance to add as key.operator- The Operator instance to use as value.- Returns:
- This builder instance after adding the Token and Operator. Useful for chaining.
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addValueReader
Adds a new ValueReader instance to use by theDefaultExpressionParserEngine.- Parameters:
valueReader- The ValueReader instance to add.- Returns:
- This builder instance after adding the ValueReader. Useful for chaining.
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build
Method to build a new instance of what this Builder is using.- Returns:
- New instance of T.
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addDefaults()for more clarity.