Elvis

Class Overview

Represents the elvis operator ?:. For an expression "a?:b" if a is not null, the value of the expression is "a", if a is null then the value of the expression is "b".

Summary

[Expand] Inherited Fields
From class org.springframework.expression.spel.ast.SpelNodeImpl protected SpelNodeImpl[] children protected int pos

[Expand] Inherited Methods
From class org.springframework.expression.spel.ast.SpelNodeImpl SpelNode getChild(int index) Helper method that returns a SpelNode rather than an Antlr Tree node. int getChildCount() int getEndPosition() Class<?> getObjectClass(Object obj) Determine the class of the object passed in, unless it is already a class object. SpelNodeImpl getPreviousChild() int getStartPosition() final TypedValue getTypedValue(ExpressionState expressionState) Evaluate the expression node in the context of the supplied expression state and return the typed value. final Object getValue(ExpressionState expressionState) Evaluate the expression node in the context of the supplied expression state and return the value. final <T> T getValue(ExpressionState state, Class<T> desiredReturnType) abstract TypedValue getValueInternal(ExpressionState expressionState) boolean isWritable(ExpressionState expressionState) Determine if this expression node will support a setValue() call. boolean nextChildIs(Class... clazzes) void setValue(ExpressionState expressionState, Object newValue) Evaluate the expression to a node and then set the new value on that node. abstract String toStringAST()
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface org.springframework.expression.spel.SpelNode abstract SpelNode getChild(int index) Helper method that returns a SpelNode rather than an Antlr Tree node. abstract int getChildCount() abstract int getEndPosition() abstract Class<?> getObjectClass(Object obj) Determine the class of the object passed in, unless it is already a class object. abstract int getStartPosition() abstract TypedValue getTypedValue(ExpressionState expressionState) Evaluate the expression node in the context of the supplied expression state and return the typed value. abstract Object getValue(ExpressionState expressionState) Evaluate the expression node in the context of the supplied expression state and return the value. abstract boolean isWritable(ExpressionState expressionState) Determine if this expression node will support a setValue() call. abstract void setValue(ExpressionState expressionState, Object newValue) Evaluate the expression to a node and then set the new value on that node. abstract String toStringAST()