Class ClassFormatOutput
- java.lang.Object
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- java.io.OutputStream
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- java.io.FilterOutputStream
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- java.io.DataOutputStream
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- org.apache.derby.iapi.services.classfile.ClassFormatOutput
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- All Implemented Interfaces:
java.io.Closeable
,java.io.DataOutput
,java.io.Flushable
,java.lang.AutoCloseable
public final class ClassFormatOutput extends java.io.DataOutputStream
A wrapper around DataOutputStream to provide input functions in terms of the types defined on pages 83 of the Java Virtual Machine spec. For this types use these methods of DataOutputStream- float - writeFloat
- long - writeLong
- double - writeDouble
- UTF/String - writeUTF
- U1Array - write(byte[])
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Constructor Summary
Constructors Constructor Description ClassFormatOutput()
ClassFormatOutput(int size)
ClassFormatOutput(java.io.OutputStream stream)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]
getData()
Get a reference to the data array the class data is being built in.(package private) static void
limit(java.lang.String name, int limit, int value)
Throw an ClassFormatError if a limit of the Java class file format is reached.void
putU1(int i)
void
putU2(int i)
void
putU2(java.lang.String limit, int i)
void
putU4(int i)
void
writeTo(java.io.OutputStream outTo)
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Methods inherited from class java.io.DataOutputStream
flush, size, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF
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Method Detail
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putU1
public void putU1(int i) throws java.io.IOException
- Throws:
java.io.IOException
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putU2
public void putU2(int i) throws java.io.IOException
- Throws:
java.io.IOException
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putU2
public void putU2(java.lang.String limit, int i) throws java.io.IOException
- Throws:
java.io.IOException
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putU4
public void putU4(int i) throws java.io.IOException
- Throws:
java.io.IOException
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writeTo
public void writeTo(java.io.OutputStream outTo) throws java.io.IOException
- Throws:
java.io.IOException
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getData
public byte[] getData()
Get a reference to the data array the class data is being built in. No copy is made.
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limit
static void limit(java.lang.String name, int limit, int value) throws java.io.IOException
Throw an ClassFormatError if a limit of the Java class file format is reached.- Parameters:
name
- Terse limit description from JVM spec.limit
- What the limit is.value
- What the value for the current class is- Throws:
java.io.IOException
- Thrown when limit is exceeded.
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