java.lang.Object
- org.springframework.expression.spel.ast.SpelNodeImpl
- - org.springframework.expression.spel.ast.Literal

所有已实现的接口:
Opcodes, SpelNode
直接已知子类:
BooleanLiteral, FloatLiteral, IntLiteral, LongLiteral, NullLiteral, RealLiteral, StringLiteral
```
public abstract class Literal
extends SpelNodeImpl
```
Common superclass for nodes representing literals (boolean, string, number, etc).
作者:
Andy Clement, Juergen Hoeller

字段概要
- 从类继承的字段 org.springframework.expression.spel.ast.SpelNodeImpl
  children, exitTypeDescriptor, pos
- 从接口继承的字段 org.springframework.asm.Opcodes
  AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM4, ASM5, ASM6, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V1_9

构造器概要
构造器
构造器说明
Literal(String originalValue, int pos)

方法概要

所有方法静态方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`static Literal`	`getIntLiteral(String numberToken, int pos, int radix)`	Process the string form of a number, using the specified base if supplied and return an appropriate literal to hold it.
`abstract TypedValue`	`getLiteralValue()`
`static Literal`	`getLongLiteral(String numberToken, int pos, int radix)`
`String`	`getOriginalValue()`
`static Literal`	`getRealLiteral(String numberToken, int pos, boolean isFloat)`
`TypedValue`	`getValueInternal(ExpressionState state)`
`String`	`toString()`
`String`	`toStringAST()`

从类继承的方法 org.springframework.expression.spel.ast.SpelNodeImpl
generateCode, generateCodeForArgument, generateCodeForArguments, getChild, getChildCount, getEndPosition, getExitDescriptor, getObjectClass, getPreviousChild, getStartPosition, getTypedValue, getValue, getValue, getValueRef, isCompilable, isWritable, nextChildIs, setValue

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

Literal

public Literal(String originalValue,
               int pos)

方法详细资料

getOriginalValue

public final String getOriginalValue()

getValueInternal

public final TypedValue getValueInternal(ExpressionState state)
                                  throws SpelEvaluationException

指定者:: getValueInternal 在类中 SpelNodeImpl
抛出:: SpelEvaluationException

toString
```
public String toString()
```
覆盖:
toString 在类中 Object

toStringAST
```
public String toStringAST()
```
返回:
the string form of this AST node

getLiteralValue

public abstract TypedValue getLiteralValue()

getIntLiteral
```
public static Literal getIntLiteral(String numberToken,
                                    int pos,
                                    int radix)
```
Process the string form of a number, using the specified base if supplied and return an appropriate literal to hold it. Any suffix to indicate a long will be taken into account (either 'l' or 'L' is supported).
参数:
numberToken - the token holding the number as its payload (eg. 1234 or 0xCAFE)
radix - the base of number
返回:
a subtype of Literal that can represent it

getLongLiteral

public static Literal getLongLiteral(String numberToken,
                                     int pos,
                                     int radix)

getRealLiteral

public static Literal getRealLiteral(String numberToken,
                                     int pos,
                                     boolean isFloat)

类 Literal

字段概要

从类继承的字段 org.springframework.expression.spel.ast.SpelNodeImpl

从接口继承的字段 org.springframework.asm.Opcodes

构造器概要

方法概要

从类继承的方法 org.springframework.expression.spel.ast.SpelNodeImpl

从类继承的方法 java.lang.Object

构造器详细资料

Literal

方法详细资料

getOriginalValue

getValueInternal

toString

toStringAST

getLiteralValue

getIntLiteral

getLongLiteral

getRealLiteral